SlideShare a Scribd company logo
Web Hacking
KSAJ Inc.
www.PENETRATIONTEST.com
HaX0rz Toolkit
Complicated ‘sploits that need a
Bachelor’s degree to understand and
use
Scripts in various languages and
syntaxes like C, PERL, gtk and bash
Automated scanning tools like nmap
and nessus
A web browser
A Web Browser?
Web surfing:
• Is easy to do,
• Is Operating System independent,
• Doesn’t require intimate knowledge of
“the system”,
• Provides access to vast amounts of data
and information,
• and topped off with all kinds of data
mining tools
Web Features
Reverse phone number searches
Detailed address topological maps
Satellite photography of target area
Resumes
Phone and Email lists
Likely targets described in detail
Exploit information easy to obtain
Data aggregation makes it more serious
What We’ll Learn
Methods of Reconnaissance
The level of sensitive detail
companies and organizations leave
exposed to the Internet
The level of detail about specific
people on the Internet
The effect of data aggregation on
privacy
Where to start?
Search Engines are
one of the first things
people learn to use on
the Internet
Most use highly
effective search
algorithms to mine the
Internet
Most provide equally
advanced search
abilities to the user
allintitle:”Index of /admin”
Web hacking
• Here is a Google hit from MIT, pulled from the cache
• allintitle:”Index of /” site:mil
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Sometimes it works when broken
From an allintitle:”Index of /admin”
search
Admin account had been patched
But the error information was pretty
interesting, too…
• Within the full page error report was:
Full paths to libraries
/home/faraway/opt/cancat/lib
/usr/local/share/perl/5.6.1/Apache/ASP.pm
/usr/local/lib/perl/5.6.1/DBD/mysql.pm
Search Engines
allintitle:”Index of /”
site:gov site:mil site:ztarget.com
filetype:doc filetype:pdf filetype:xls
[cached]
[view as html]
intitle:, inurl:, allinurl:
Filetypes include: pdf, ps, wk[12345], wki,
wks, wku, lwp, mw, xls, ppt, doc, wps,
wdb, wri, rtf, ans and txt
Other Interesting Searches
Far too many password files to bother
counting anymore
Access and error logs from a hotel chain
• Included booking information and how long
customers were staying
• Some very well-known people had their full
vacation schedules made available to the
public

Military “Procedures and Practices”
Other Interesting Searches
allintitle:”Index of /” +confidential filetype:doc
• A regulatory matters postal letter to an
executive at a telecommunications
commission, which contained competitor and
specific revenue information, and made the
following declaration:
The release of such information on the public record
would allow current and potential competitors to
develop more effective business and marketing
strategies…
Other Interesting Searches
Searches for WS_FTP.LOG give a rather
detailed list of files that are updated
regularly, and often provides internal
network IP information normally hidden
from the Internet
Name, job title, phone number, and email
address of mailroom staff at major
military sites
Inter-department electronic funds
transfers
Other Interesting Searches
robots.txt files tell search engines
“don’t look here”
World-readable and in a known
location so the search engines will
find it easily, and ignore confidential
or private directories
What do you find when you do look
in those directories?
Other Interesting Searches
Passive scanning for vulnerable
targets
Where to find targets:
• Search for phrases commonly found on
web-based application interfaces (and
especially their error messages)
• Sites like http://www.securityfocus.com
– provide information that can be used
to create search criteria
Web hacking
Web hacking
Web hacking
Web hacking
Unreported Vulnerabilities
Many vulnerabilities go unreported and
unfixed, despite how obvious they are
Example:
• HAMWeather is a weather software package
that allows websites to provide accurate
weather information. Geared towards news
sites.
• Does not require authentication for any of its
administrative processes
• Lets search for that administrative program…
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
More Web Hacking
Search engines are a treasure trove
of information
We’ve looked at general web search
engines, but let’s now look at more
information specific sites
• Administrative web servers
• Reconnaissance from the sky
• Proxies
Administrative Web Servers
Many devices come with web servers
enabled by default:
• Printers
• Routers and Switches
• Wireless Access Points
Printers on the Web?
Netcraft provides an ongoing tally of
web servers operating on the
Internet.
Can we find web based
administration?
Web hacking
Agranat-EmWeb
Several sites seem to have left
this particular printer wide open
Web hacking
Web hacking
Web hacking
Web hacking
Reconnaissance
We’ve seen a glimpse of various back
doors available to web browsers
Let’s turn the tables now, and talk
much closer to home
How much personal detail do we put
online for all to see?
Reconaissance
Web surfing habits
Cookies
Resumes
Web site histories (www.archive.org)
News group posts
Friends
Relatives
School archives
Maps
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Web hacking
Final Thoughts
We have shown a few ways that a web
browser can be used to gather huge
amounts of target information, and a few
ways the web browser can be used to
exploit trivial vulnerabilities
There are many more online services like
the ones pointed out in this presentation
It is easy to collect and analyze this
information to produce thorough profiles
Thank You
Karsten Johansson
KSAJ Inc.
www.PENETRATIONTEST.com

More Related Content

PDF
Web hacking
PDF
CC_OverviewBrochure
PPTX
Hacking en aplicaciones web
PPSX
Hacking
PPTX
Hacking & its types
PPTX
Eba ppt rajesh
PPTX
Lesson 6 web based attacks
PPTX
Reconnaissance - For pentesting and user awareness
Web hacking
CC_OverviewBrochure
Hacking en aplicaciones web
Hacking
Hacking & its types
Eba ppt rajesh
Lesson 6 web based attacks
Reconnaissance - For pentesting and user awareness

Similar to Web hacking (20)

PDF
1. web technology basics
PPT
Web Server Hardware and Software
PPTX
Internet
PPT
Network Basics & Internet
PPT
Introduction to internet
PDF
Web technology
PDF
WebTechnology Powerpointpresentation.pdf
PPT
Web analytics
PDF
OSINT for Attack and Defense
PPTX
Week two lecture
PPT
Chapter 8
PPTX
SERVICES ON THE INTERNET
PDF
PPTX
10 Big Data Technologies you Didn't Know About
PPT
Internet
PPTX
Internet terminologies
PPTX
Global Azure Bootcamp 2017 - Performance and Health Management for Modern App...
PPTX
Web scraping & browser automation
PDF
0_Leksion_Web_Servers (1).pdf
PPTX
Internet &web technology
1. web technology basics
Web Server Hardware and Software
Internet
Network Basics & Internet
Introduction to internet
Web technology
WebTechnology Powerpointpresentation.pdf
Web analytics
OSINT for Attack and Defense
Week two lecture
Chapter 8
SERVICES ON THE INTERNET
10 Big Data Technologies you Didn't Know About
Internet
Internet terminologies
Global Azure Bootcamp 2017 - Performance and Health Management for Modern App...
Web scraping & browser automation
0_Leksion_Web_Servers (1).pdf
Internet &web technology

Recently uploaded (20)

PPTX
Spectroscopy.pptx food analysis technology
PDF
Blue Purple Modern Animated Computer Science Presentation.pdf.pdf
PDF
Agricultural_Statistics_at_a_Glance_2022_0.pdf
PDF
Per capita expenditure prediction using model stacking based on satellite ima...
PDF
Spectral efficient network and resource selection model in 5G networks
PDF
Getting Started with Data Integration: FME Form 101
PDF
A comparative analysis of optical character recognition models for extracting...
PDF
Dropbox Q2 2025 Financial Results & Investor Presentation
PPTX
SOPHOS-XG Firewall Administrator PPT.pptx
PPTX
Group 1 Presentation -Planning and Decision Making .pptx
PDF
Optimiser vos workloads AI/ML sur Amazon EC2 et AWS Graviton
PDF
Building Integrated photovoltaic BIPV_UPV.pdf
PPTX
Big Data Technologies - Introduction.pptx
PDF
cuic standard and advanced reporting.pdf
PDF
MIND Revenue Release Quarter 2 2025 Press Release
PDF
Mobile App Security Testing_ A Comprehensive Guide.pdf
PDF
Diabetes mellitus diagnosis method based random forest with bat algorithm
PPTX
Programs and apps: productivity, graphics, security and other tools
PDF
Electronic commerce courselecture one. Pdf
PDF
Build a system with the filesystem maintained by OSTree @ COSCUP 2025
Spectroscopy.pptx food analysis technology
Blue Purple Modern Animated Computer Science Presentation.pdf.pdf
Agricultural_Statistics_at_a_Glance_2022_0.pdf
Per capita expenditure prediction using model stacking based on satellite ima...
Spectral efficient network and resource selection model in 5G networks
Getting Started with Data Integration: FME Form 101
A comparative analysis of optical character recognition models for extracting...
Dropbox Q2 2025 Financial Results & Investor Presentation
SOPHOS-XG Firewall Administrator PPT.pptx
Group 1 Presentation -Planning and Decision Making .pptx
Optimiser vos workloads AI/ML sur Amazon EC2 et AWS Graviton
Building Integrated photovoltaic BIPV_UPV.pdf
Big Data Technologies - Introduction.pptx
cuic standard and advanced reporting.pdf
MIND Revenue Release Quarter 2 2025 Press Release
Mobile App Security Testing_ A Comprehensive Guide.pdf
Diabetes mellitus diagnosis method based random forest with bat algorithm
Programs and apps: productivity, graphics, security and other tools
Electronic commerce courselecture one. Pdf
Build a system with the filesystem maintained by OSTree @ COSCUP 2025

Web hacking

  • 2. HaX0rz Toolkit Complicated ‘sploits that need a Bachelor’s degree to understand and use Scripts in various languages and syntaxes like C, PERL, gtk and bash Automated scanning tools like nmap and nessus A web browser
  • 3. A Web Browser? Web surfing: • Is easy to do, • Is Operating System independent, • Doesn’t require intimate knowledge of “the system”, • Provides access to vast amounts of data and information, • and topped off with all kinds of data mining tools
  • 4. Web Features Reverse phone number searches Detailed address topological maps Satellite photography of target area Resumes Phone and Email lists Likely targets described in detail Exploit information easy to obtain Data aggregation makes it more serious
  • 5. What We’ll Learn Methods of Reconnaissance The level of sensitive detail companies and organizations leave exposed to the Internet The level of detail about specific people on the Internet The effect of data aggregation on privacy
  • 6. Where to start? Search Engines are one of the first things people learn to use on the Internet Most use highly effective search algorithms to mine the Internet Most provide equally advanced search abilities to the user
  • 9. • Here is a Google hit from MIT, pulled from the cache
  • 10. • allintitle:”Index of /” site:mil
  • 17. Sometimes it works when broken From an allintitle:”Index of /admin” search Admin account had been patched But the error information was pretty interesting, too… • Within the full page error report was: Full paths to libraries /home/faraway/opt/cancat/lib /usr/local/share/perl/5.6.1/Apache/ASP.pm /usr/local/lib/perl/5.6.1/DBD/mysql.pm
  • 18. Search Engines allintitle:”Index of /” site:gov site:mil site:ztarget.com filetype:doc filetype:pdf filetype:xls [cached] [view as html] intitle:, inurl:, allinurl: Filetypes include: pdf, ps, wk[12345], wki, wks, wku, lwp, mw, xls, ppt, doc, wps, wdb, wri, rtf, ans and txt
  • 19. Other Interesting Searches Far too many password files to bother counting anymore Access and error logs from a hotel chain • Included booking information and how long customers were staying • Some very well-known people had their full vacation schedules made available to the public Military “Procedures and Practices”
  • 20. Other Interesting Searches allintitle:”Index of /” +confidential filetype:doc • A regulatory matters postal letter to an executive at a telecommunications commission, which contained competitor and specific revenue information, and made the following declaration: The release of such information on the public record would allow current and potential competitors to develop more effective business and marketing strategies…
  • 21. Other Interesting Searches Searches for WS_FTP.LOG give a rather detailed list of files that are updated regularly, and often provides internal network IP information normally hidden from the Internet Name, job title, phone number, and email address of mailroom staff at major military sites Inter-department electronic funds transfers
  • 22. Other Interesting Searches robots.txt files tell search engines “don’t look here” World-readable and in a known location so the search engines will find it easily, and ignore confidential or private directories What do you find when you do look in those directories?
  • 23. Other Interesting Searches Passive scanning for vulnerable targets Where to find targets: • Search for phrases commonly found on web-based application interfaces (and especially their error messages) • Sites like http://www.securityfocus.com – provide information that can be used to create search criteria
  • 28. Unreported Vulnerabilities Many vulnerabilities go unreported and unfixed, despite how obvious they are Example: • HAMWeather is a weather software package that allows websites to provide accurate weather information. Geared towards news sites. • Does not require authentication for any of its administrative processes • Lets search for that administrative program…
  • 35. More Web Hacking Search engines are a treasure trove of information We’ve looked at general web search engines, but let’s now look at more information specific sites • Administrative web servers • Reconnaissance from the sky • Proxies
  • 36. Administrative Web Servers Many devices come with web servers enabled by default: • Printers • Routers and Switches • Wireless Access Points
  • 37. Printers on the Web? Netcraft provides an ongoing tally of web servers operating on the Internet. Can we find web based administration?
  • 40. Several sites seem to have left this particular printer wide open
  • 45. Reconnaissance We’ve seen a glimpse of various back doors available to web browsers Let’s turn the tables now, and talk much closer to home How much personal detail do we put online for all to see?
  • 46. Reconaissance Web surfing habits Cookies Resumes Web site histories (www.archive.org) News group posts Friends Relatives School archives Maps
  • 55. Final Thoughts We have shown a few ways that a web browser can be used to gather huge amounts of target information, and a few ways the web browser can be used to exploit trivial vulnerabilities There are many more online services like the ones pointed out in this presentation It is easy to collect and analyze this information to produce thorough profiles
  • 56. Thank You Karsten Johansson KSAJ Inc. www.PENETRATIONTEST.com