PT-2021-15363 · F5 · Big-Ip

Published 2021-09-14 · Updated 2021-09-27 · CVE-2021-23039

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions BIG-IP versions 12.1.x BIG-IP versions 13.1.x BIG-IP versions 14.1.x through 14.1.2.7 BIG-IP versions 15.1.x through 15.1.2 BIG-IP versions 16.0.x through 16.0.1.1

Description When IPSec is configured on a BIG-IP system, undisclosed requests from an authorized remote peer, which already has a negotiated Security Association, can cause the Traffic Management Microkernel (TMM) to terminate.

Recommendations For versions 12.1.x, consider disabling IPSec until a patch is available. For versions 13.1.x, consider disabling IPSec until a patch is available. For versions 14.1.x through 14.1.2.7, consider disabling IPSec until a patch is available. For versions 15.1.x through 15.1.2, consider disabling IPSec until a patch is available. For versions 16.0.x through 16.0.1.1, consider disabling IPSec until a patch is available.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2021-23039

Affected Products

Big-Ip

References · 4

• https://support.f5.com/csp/article/K66782293 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23039 · Security Note
• https://osv.dev/vulnerability/CVE-2021-23039 · Vendor Advisory
• https://t.me/cibsecurity/28841 · Telegram Post