PT-2021-15321 · F5 · Big-Ip

Published 2021-03-31 · Updated 2021-04-05 · CVE-2021-22994

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions 11.6.x before 11.6.5.3 F5 BIG-IP versions 12.1.x before 12.1.5.3 F5 BIG-IP versions 13.1.x before 13.1.3.6 F5 BIG-IP versions 14.1.x before 14.1.4 F5 BIG-IP versions 15.1.x before 15.1.2.1 F5 BIG-IP versions 16.0.x before 16.0.1.1

Description The issue is related to undisclosed endpoints in iControl REST, which allow for a reflected XSS attack. This could lead to a complete compromise of the BIG-IP system if the victim user has the admin role. The problem arises from an incomplete fix for a previous issue.

Recommendations For F5 BIG-IP version 11.6.x, update to version 11.6.5.3 or later. For F5 BIG-IP version 12.1.x, update to version 12.1.5.3 or later. For F5 BIG-IP version 13.1.x, update to version 13.1.3.6 or later. For F5 BIG-IP version 14.1.x, update to version 14.1.4 or later. For F5 BIG-IP version 15.1.x, update to version 15.1.2.1 or later. For F5 BIG-IP version 16.0.x, update to version 16.0.1.1 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-22994

Affected Products

Big-Ip

References · 4

• https://support.f5.com/csp/article/K66851119 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-22994 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22994 · Security Note
• https://t.me/cvenotify/12414 · Telegram Post