QID 375912

Date Published: 2021-10-04

QID 375912: F5 BIG-IP Access Policy Manager (APM) Online Certificate Status Protocol (OCSP) Vulnerability (K79428827)

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 BIG-IP APM performs Online Certificate Status Protocol (OCSP) verification of a certificate that contains Authority Information Access (AIA), undisclosed requests may cause an increase in memory use. (CVE-2021-23047)

Vulnerable Component: BIG-IP APM

Affected Versions:
16.0.0 - 16.0.1
15.1.0 - 15.1.3.0
14.1.0 - 14.1.4.2
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.

This vulnerability allows a remote attacker to cause a degradation of service that may cause a denial-of-service (DoS) on the BIG-IP system and send OCSP AIA requests to the wrong server.

CVSS V3 rated as Medium - 5.3 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

The vendor has released patch, for more information please visit: K79428827

Vendor References

K79428827 - support.f5.com/csp/article/K79428827

CVEs related to QID 375912

CVE-2021-23047 |

Software Advisories

Advisory ID	Software	Component	Link
K79428827			support.f5.com/csp/article/K79428827

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