DataPower Security Hardening
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DataPower can be used to provide security for applications and APIs. It supports many security standards and protocols for authentication, authorization, encryption, and more. As a purpose-built appliance, it offers a secure platform with features like a hardened operating system, physical security protections, and no ability to install arbitrary third-party software. DataPower gateways are well-suited for roles like API management, security enforcement, and acting as a secure intermediary.
![Usage of DataPower for application/api
protection
• AAA framework
• Make sure Authentication and Authorization step are set up
appropriately
• [note] as authorization can be set up for anonymous user
4/30/20 25](https://image.slidesharecdn.com/dp-security-hardening-200501033113/85/DataPower-Security-Hardening-25-320.jpg)
DataPower Security Hardening
- 1. DataPower SECURITY HARDENING SHIU FUN POON (@SPOON) STSM (NERD) – SECURITY SHIUFUN@US.IBM.COM 4/30/20 1
- 2. Agenda • Security • Authentication/Authorization • Transport vs Message level security • In-flight vs at rest protection • Misc: Auditing, High availability, Physical protection, CORS… • DataPower • Access to DataPower • Usage of DataPower Security is always excessive until it’s not enough - Robbie Sinclair 4/30/20 2
- 3. Security • Authentication • Who are you • Which group you are in ? • What role are you in ? • Vouch by a reputable Identity Provider • User Registry, e.g. LDAP, Active Directory • Social provider (?) • Protocol/token • Basic Auth ? Username/password • OIDC ? JWT • Window ? Kerberos • WebServices/SSO ? SAML • Multi-Factors/StepsUp 4/30/20 3
- 4. Security • Authorization • What is allowed {user, resource, action} • Role Based Management • ACL • XACML • OAuth • User’s permission for an application to access his/her resources 4/30/20 4
- 5. Security • Transport vs Message level security • Transport – is the pipe secure (point to point) • Message Level • Can the message be tampered ? If so, can it be detected • Who can read the message • In-flight vs at rest protection • In-flight – when the message is left the destination, is it protected ? • At rest - when the message is stored, can it be tampered, modified without detection, can it be read by unauthorized user ? • Misc: Auditing, High availability, Physical protection, CORS… 4/30/20 5
- 6. Agenda • Security • Authentication/Authorization • Transport vs Message level security • In flight vs at rest protection • Misc: Auditing, High availability, Physical protection, CORS… • DataPower • Access to DataPower • Usage of DataPower Security is always excessive until it’s not enough - Robbie Sinclair 4/30/20 6
- 7. Ø Non-blocking event-driven I/O architecture ü Architecture similar to Nginx & Node.js ü Continued enhancements since 2002 Ø Parsers & compilers for JSON & XML processing written from ground-up with several patents Ø No third-party arbitrary software can be installed Ø Secure and optimized JavaScript runtime called GatewayScript Ø Purpose-built, secure gateway image (all form factors) ü Single self-contained, signed & encrypted secure gateway image without external software dependencies q No arbitrary software q Security exposure minimized due to smaller vulnerability surface (few user-exposed and 3rd party components) ü High assurance, “locked-down” configuration ü Optimized, embedded operation system Purpose-Built, Secure Gateway How DataPower Gateways are unique? Enterprise grade security requires a secure platform Ø Physical security (physical appliance only) ü Sealed, tamper-evident case ü No usable USB, VGA, other ports ü Customized intrusion detection switch ü Trusted Platform Module ü Encrypted flash drive ü Cryptographic acceleration card ü Optional FIPS 140-2 level 3 certified Hardware Security Module Single signed and encrypted image 4/30/20 7
- 8. Agenda • Security • Authentication/Authorization • Transport vs Message level security • In flight vs at rest protection • Misc: Auditing, High availability, Physical protection, CORS… • DataPower • Access to DataPower • Usage of DataPower Security is always excessive until it’s not enough - Robbie Sinclair 4/30/20 8
- 9. Overall good practices • Protect physical access to DataPower • Install your own credentials (e.g. replace the shipped profile) • Separate management traffic from application traffic • Why 0.0.0.0 is bad • Set up ACL on WebGUI, SOMA, ROMA, SSH • Disable any port that is not used in production (webgui ? SOMA ? ROMA ?) leave cli as devops tool for production • Setup RBM on DataPower to segregate action for different level of administrators (remember to have a backup administrator) 4/30/20 9
- 10. Overall good practices • Session time out of the WebGUI/cli interface (0 is bad) • Reliable NTP configuration • Offload log event • Log from command issued on DataPower thru cli ? • Log does rotate, so it is important to offload them periodically • Track events that may require immediate attention • SNMP (like memory exhaustion, CPU high usage) 4/30/20 10
- 11. Overall good practices • Periodically backup your system with secure backup and restore • HSM vs cert:/// vs sharedcert:/// vs local:/// • Set up certificate monitor for key material • Validate certificate chain if TLS is used • CRL, Trust Store, OCSP • `Self & immediate` vs `pkix` 4/30/20 11
- 12. Overall good practices • Subscribe to IBM PSIRT for IBM DataPower • Keep your firmware up to date 4/30/20 12
- 13. • Physical appliances: All-in-one (HW / SW), DMZ-ready with physical security including crypto acceleration, TPM, and optional hardware security module (HSM) • Software: Docker container, Microsoft Azure, VMWARE ESX Server & Workstation, Citrix Xen, Amazon EC2, IBM … 13 Gateway Physical Virtual Linux Docker Gateway Gateway Operating System / Cloud Virtual Server Gateway Container Runtime Signed & Encrypted Gateway Stack IBM Optimized Embedded OS Signed & Encrypted Gateway Stack IBM Optimized Application Layer Signed & Encrypted Gateway Stack IBM Optimized Embedded OS IBM Optimized Application Layer REST SOAP REST SOAP REST SOAP REST SOAP Volume File System Cloud-Ready Hardware Crypto Acceleration Trusted Platform Module Hardware Security Module Hypervisor Hardware 4/30/20 13
- 14. Balancing: flexibility vs hardware security Without Hardware, we lost • No embedded HSM/Crypto Card support • No TPM support But we gain… • Flexibility Still have • Network HSM • Public/Private key pair stored on z/OS NSS • Roach motel of the key material, if configured properly • Key resides in cert:/// sharedcert:/// • Private key, ltpa key • Only public key is viewable, exportable from the above directory • Password is protected with `Password Alias` object 4/30/20 14
- 15. To the other extreme (Docker) • Orchestrated with Kubernetes, Docker Swarm & Apache Mesos • Easily to scale up and down based on the load • By default : run as non-root (drouter:drouter) • ADD/COPY file (deployment) • Modify/change permission to an existing file • Certificate/key anyone ? • Xslt/gatescript ? 4/30/20 15
- 16. Best practices • Do not use lower port (may require additional permission for port < 1024) • COPY : Mounted file (pay special attention to permission, file ownership) • Use `USER root` cautiously • Version control the docker image • Protect the system that will run the docker • Protect the access to the orchestrator • E.g. kubeconfig if k8s 4/30/20 16
- 17. What does the gateway configuration look like 4/30/20 17
- 18. So … • Key is protected by Password (which in turn is protected by Password Alias) • Create a crypto file protected by Password • Securely storing the file • Lock down the access (auditing ) on who & when on changes to • dockerfile • docker-compose.yaml • Kubernetes • Still Paranoid ? • Network HSM • z/OS NSS 4/30/20 18
- 19. Agenda • Security • Authentication/Authorization • Transport vs Message level security • In flight vs at rest protection • Misc: Auditing, High availability, Physical protection, CORS… • DataPower • Access to DataPower • Usage of DataPower Security is always excessive until it’s not enough - Robbie Sinclair 4/30/20 19
- 20. Where to put a gateway TH GS IN www Web Service IBM z DMZ Trusted ZoneConsumers ESBAPI Gateway + business logic and SoR functionality exposed outside of trusted zone Trusted Zone exposed publicly Increased traffic and load of incoming connections handling Rate limiting, validations, threat protections, OAuth Works for internal facing projects ESBAPI Gateway + 4/30/20 20
- 21. • Data format & language – JavaScript ‒ JSON ‒ JSON Schema ‒ REST, SOAP 1.1, 1.2 ‒ WSDL 1.1 ‒ XML 1.0 ‒ XML Schema 1.0 ‒ XPath 1.0, XPath 2.0 (XQuery only) ‒ XSLT 1.0 ‒ XQuery 1.0, JSONiq • Security policy enforcement ‒ OAuth 2.0, OpenID Connect, Social Login ‒ JWE, JWS, JWT, JWK ‒ SAML 1.0/1.1/2.0, SAML Tkn Profile, SAML queries ‒ XACML 2.0 ‒ Kerberos (including S4U2Self, S4U2Proxy) ‒ SPNEGO ‒ RADIUS, RSA SecurID OTP using RADIUS ‒ LDAP versions 2 and 3 ‒ Lightweight Third-Party Authentication ‒ Microsoft Active Directory ‒ FIPS 140-2 Level 3 (w/ optional HSM) ‒ FIPS 140-2 Level 1 (w/ certified crypto module) ‒ SAF & IBM RACF® integration with z/OS ‒ Internet Content Adaptation Protocol ‒ W3C XML Encryption ‒ W3C XML Signature ‒ S/MIME encryption and digital signature ‒ WS-Security 1.0, 1.1 ‒ WS-I Basic Security Profile 1.0, 1.1 ‒ WS-SecurityPolicy ‒ WS-SecureConversation 1.3 • Transport & connectivity – HTTP, HTTP/2, HTTPS, WebSocket Proxy – FTP, FTPS, SFTP – WebSphere MQ – WebSphere MQ File Transfer Edition – TIBCO EMS – WebSphere Java Message Service – IBM IMS Connect, & IMS Callout – NFS – AS1, AS2, AS3, ebMS 2.0, CPPA 2.0, POP, SMTP (B2B Module) – DB2, Microsoft SQL Server, Oracle, Sybase, IMS • Transport Layer Security ‒ TLS versions 1.0, 1.1, and 1.2 ‒ SSL versions 3 ‒ SNI, PFS, ECC Ciphers • Public key infrastructure (PKI) ‒ RSA, 3DES, DES, AES, SHA, X.509, CRLs, OCSP ‒ PKCS#1, PKCS#5, PKCS#7, PKCS#8, PKCS#10, PKCS#12 ‒ XKMS for integration with Tivoli Security Policy Manager (TSPM) • Management ‒ Simple Network Management Protocol ‒ SYSLOG ‒ IPv4, IPv6 • Web services – WS-I Basic Profile 1.0, 1.1 – WS-I Simple SOAP Basic Profile – WS-Policy Framework – WS-Policy 1.2, 1.5 – WS-Trust 1.3 – WS-Addressing – WS-Enumeration – WS-Eventing – WS-Notification – Web Services Distributed Management – WS-Management – WS-I Attachments Profile – SOAP Attachment Feature 1.2 – SOAP with Attachments (SwA) – Direct Internet Message Encapsulation – Multipurpose Internet Mail Extensions – XML-binary Optimized Packaging (XOP) – Message Transmission Optimization Mechanism (MTOM) – WS-MediationPolicy (IBM standard) – Universal Description, Discovery, and Integration (UDDI versions 2 and 3), UDDI version 3 subscription – WebSphere Service Registry and Repository (WSRR) Consider the following protocols and standards for security 4/30/20 21
- 22. Usage of DataPower for application/api protection • Use the purposely built services • Webservice proxy, MPGW, XML firewall, apigw .. • Enable ACL • Use the highest secure protocol for TLS (PFS is preferred) • Disable unnecessary protocol on FSH • Disable unnecessary method/verb on FSH • Match rule should be as precise (PCRE) • MPGW : skip backside !== terminate the call rule 4/30/20 22
- 23. Usage of DataPower for application/api protection • Schema protection • Payload size protection (depth) • SLM (rate limit) • Time Skew for protected resource (the smaller the range, the better) • Crypto material • HSM vs cert:/// vs sharedcert:/// vs local:/// • Listening interface, why 0.0.0.0 is bad • Debugging implication (slow, and info leaking) 4/30/20 23
- 24. Usage of DataPower for application/api protection • TLS communication • Trust store mode • pkix • Self & immediate (byte2byte comparison) • CRL/OCSP ? • Enable streaming if payload allow • DP is not designed/ideal for large payload • Caching • DP’s sweet spots is stateless • However if state is needed, size, HA implication needs to be considered • Context variable between action • Set to null if not needed 4/30/20 24
- 25. Usage of DataPower for application/api protection • AAA framework • Make sure Authentication and Authorization step are set up appropriately • [note] as authorization can be set up for anonymous user 4/30/20 25
- 26. 4/30/20 26