QID 376687

Date Published: 2022-06-27

QID 376687: F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) BIG-IP CGNAT LSN Vulnerability (K54082580)

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.

When the BIG-IP CGNAT Large Scale NAT (LSN) pool is configured on a virtual server and packet filtering is enabled, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. (CVE-2022-26517)

Vulnerable Component:
BIG-IP APM,ASM,LTM

Affected Versions:
16.0.0 - 16.0.1
15.1.0 - 15.1.5
14.1.0 - 14.1.4
13.1.0 - 13.1.4

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

Traffic is disrupted while the TMM process restarts. This vulnerability allows a remote unauthenticated attacker to cause a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

For more information about patch details please refer to: K54082580

Vendor References

K54082580 - support.f5.com/csp/article/K54082580

CVEs related to QID 376687

CVE-2022-26517 |

Software Advisories

Advisory ID	Software	Component	Link
K54082580			support.f5.com/csp/article/K54082580

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