QID 375963

Date Published: 2021-10-20

QID 375963: F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) Apache HTTPD Vulnerability (K72382141)

F5 BIG-IP ASM (Application Security Manager) is a flexible web application firewall that secures web applications in traditional, virtual, and private cloud environments.
F5 BIG-IP (LTM) Local Traffic Manager is the most popular module offered on F5 Networks BIG-IP platform. The real power of the LTM is it is a Full Proxy, allowing you to augment client and server side connections. All while making informed load balancing decisions on availability, performance, and persistence.
F5 BIG-IP Access Policy Manager (APM) is a secure, flexible, high-performance solution that provides unified global access to your network, cloud, and applications.

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-34798)

Vulnerable Component: BIG-IP ASM, APM, LTM

Affected Versions:
16.1.0
15.1.0 - 15.1.4
14.1.0 - 14.1.4
13.1.0 - 13.1.4
12.1.0 - 12.1.6
11.6.1 - 11.6.5

QID Detection Logic(Authenticated):
This QID checks for the vulnerable versions of F5 BIG-IP devices using the tmsh command.

A NULL pointer dereference in httpd allows an unauthenticated remote attacker to cause httpd to terminate by providing malformed HTTP requests. The highest threat from this vulnerability is to system availability.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Vendor has released patch, for more information refer to K72382141
    Vendor References

    CVEs related to QID 375963

    CVE-2021-34798 |
    Software Advisories
    Advisory ID Software Component Link
    K72382141 URL Logo support.f5.com/csp/article/K72382141
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