Rewterz Threat Advisory – CVE-2018-0732 – F5 Multiple Products OpenSSL Denial of Service Vulnerability

SEVERITY: Medium

CATEGORY: Vulnerability

ANALYSIS SUMMARY

During key agreement in a TLS handshake using a DH(E) based ciphersuite, a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack.

AFFECTED PRODUCTS

• Traffix SDC 4.4.0
• Traffix SDC 5.0.0 – 5.1.0
• F5 iWorkflow 2.1.0 – 2.3.0
• BIG-IQ Centralized Management 4.6.0
• BIG-IQ Centralized Management 5.0.0 – 5.4.0
• BIG-IQ Centralized Management 6.0.0
• Enterprise Manager 3.1.1
• BIG-IP (LTM) 11.2.1 – 11.6.3
• BIG-IP (LTM) 12.1.0 – 12.1.3
• BIG-IP (LTM) 13.0.0 – 13.1.1
• BIG-IP (LTM) 14.0.0 – 14.1.0
• BIG-IP (AAM) 11.2.1 – 11.6.3
• BIG-IP (AAM) 12.1.0 – 12.1.3
• BIG-IP (AAM) 13.0.0 – 13.1.1
• BIG-IP (AAM) 14.0.0 – 14.1.0
• BIG-IP (AFM) 11.2.1 – 11.6.3
• BIG-IP (AFM) 12.1.0 – 12.1.3
• BIG-IP (AFM) 13.0.0 – 13.1.1
• BIG-IP (AFM) 14.0.0 – 14.1.0
• BIG-IP (Analytics) 11.2.1 – 11.6.3
• BIG-IP (Analytics) 12.1.0 – 12.1.3
• BIG-IP (Analytics) 13.0.0 – 13.1.1
• BIG-IP (Analytics) 14.0.0 – 14.1.0
• BIG-IP (APM ) 11.2.1 – 11.6.3
• BIG-IP (APM ) 12.1.0 – 12.1.3
• BIG-IP (APM ) 13.0.0 – 13.1.1
• BIG-IP (APM ) 14.0.0 – 14.1.0
• BIG-IP (ASM) 11.2.1 – 11.6.3
• BIG-IP (ASM) 12.1.0 – 12.1.3
• BIG-IP (ASM) 13.0.0 – 13.1.1
• BIG-IP (ASM) 14.0.0 – 14.1.0
• BIG-IP (DNS) 11.2.1 – 11.6.3
• BIG-IP (DNS) 12.1.0 – 12.1.3
• BIG-IP (DNS) 13.0.0 – 13.1.1
• BIG-IP (DNS) 14.0.0 – 14.1.0
• BIG-IP (Edge Gateway) 11.2.1 – 11.6.3
• BIG-IP (Edge Gateway) 12.1.0 – 12.1.3
• BIG-IP (Edge Gateway) 13.0.0 – 13.1.1
• BIG-IP (Edge Gateway) 14.0.0 – 14.1.0
• BIG-IP (FPS) 11.2.1 – 11.6.3
• BIG-IP (FPS) 12.1.0 – 12.1.3
• BIG-IP (FPS) 13.0.0 – 13.1.1
• BIG-IP (FPS) 14.0.0 – 14.1.0
• BIG-IP (GTM) 11.2.1 – 11.6.3
• BIG-IP (GTM) 12.1.0 – 12.1.3
• BIG-IP (GTM) 13.0.0 – 13.1.1
• BIG-IP (GTM) 14.0.0 – 14.1.0
• BIG-IP (LinkController) 11.2.1 – 11.6.3
• BIG-IP (LinkController) 12.1.0 – 12.1.3
• BIG-IP (LinkController) 13.0.0 – 13.1.1
• BIG-IP (LinkController) 14.0.0 – 14.1.0
• BIG-IP (PEM) 11.2.1 – 11.6.3 1
• BIG-IP (PEM) 12.1.0 – 12.1.3
• BIG-IP (PEM) 13.0.0 – 13.1.1
• BIG-IP (PEM) 14.0.0 – 14.1.0
• BIG-IP (WebAccelerator) 11.2.1 – 11.6.3
• BIG-IP (WebAccelerator) 12.1.0 – 12.1.3
• BIG-IP (WebAccelerator) 13.0.0 – 13.1.1
• BIG-IP (WebAccelerator) 14.0.0 – 14.1.0

REMEDIATION

Update to a fixed version that vendor has released.

For BIG-IP LTM 14.0.0 – 14.1.0, Enterprise Manager, BIG-IQ Centralized Management:

No official solution is currently available.

BIG-IP LTM 11.2.1 – 11.6.3, 12.1.0 – 12.1.3, 13.0.0 – 13.1.1:

Update to version 11.6.3.3, 12.1.4, or 13.1.1.2.

BIG-IP AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator: Update to version 11.6.3.3, 12.1.4, or 13.1.1.2