QID 375667

Date Published: 2021-06-30

QID 375667: F5 BIG-IP ASM,LTM,APM BIG-IP TMM with HTTP/2 Vulnerability (K90603426)

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.

On BIG-IP version 16.0.x before 16.0.1.1 and 15.1.x before 15.1.3, malformed HTTP/2 requests may cause an infinite loop which causes a Denial of Service for Data Plane traffic. TMM takes the configured HA action when the TMM process is aborted. There is no control plane exposure, this is a data plane issue only. (CVE-2021-23009)

Vulnerable Component: BIG-IP ASM, APM,LTM

Affected Versions:
16.0.0 - 16.0.1
15.1.0 - 15.1.2

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

When this vulnerability is exploited, the system may experience a denial-of-service (DoS) attack, which can cause the TMM process to restart.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

The vendor has released patch, for more information please visit: K90603426

Vendor References

K90603426 - support.f5.com/csp/article/K90603426

CVEs related to QID 375667

CVE-2021-23009 |

Software Advisories

Advisory ID	Software	Component	Link
K90603426			support.f5.com/csp/article/K90603426

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