CVE-2021-23038

Home/CVE/On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versi

CVE

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versi

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CRITICAL · CVSS 9 EPSS 0.00326

Schedule remediation

CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

▤

Affected Products & Versions

f5 big-ip access policy manager>= 12.1.0 and <= 12.1.6
f5 big-ip access policy manager>= 13.1.0 and < 13.1.4.1
f5 big-ip access policy manager>= 14.1.0 and < 14.1.4.2
f5 big-ip access policy manager>= 15.1.0 and < 15.1.3.1
f5 big-ip access policy manager>= 16.0.0 and < 16.0.1.2
f5 big-ip advanced firewall manager>= 12.1.0 and <= 12.1.6
f5 big-ip advanced firewall manager>= 13.1.0 and < 13.1.4.1
f5 big-ip advanced firewall manager>= 14.1.0 and < 14.1.4.2
Show all 55 affected productsf5 big-ip advanced firewall manager>= 15.1.0 and < 15.1.3.1
f5 big-ip advanced firewall manager>= 16.0.0 and < 16.0.1.2
f5 big-ip analytics>= 12.1.0 and <= 12.1.6
f5 big-ip analytics>= 13.1.0 and < 13.1.4.1
f5 big-ip analytics>= 14.1.0 and < 14.1.4.2
f5 big-ip analytics>= 15.1.0 and < 15.1.3.1
f5 big-ip analytics>= 16.0.0 and < 16.0.1.2
f5 big-ip application acceleration manager>= 12.1.0 and <= 12.1.6
f5 big-ip application acceleration manager>= 13.1.0 and < 13.1.4.1
f5 big-ip application acceleration manager>= 14.1.0 and < 14.1.4.2
f5 big-ip application acceleration manager>= 15.1.0 and < 15.1.3.1
f5 big-ip application acceleration manager>= 16.0.0 and < 16.0.1.2
f5 big-ip application security manager>= 12.1.0 and <= 12.1.6
f5 big-ip application security manager>= 13.1.0 and < 13.1.4.1
f5 big-ip application security manager>= 14.1.0 and < 14.1.4.2
f5 big-ip application security manager>= 15.1.0 and < 15.1.3.1
f5 big-ip application security manager>= 16.0.0 and < 16.0.1.2
f5 big-ip domain name system>= 12.1.0 and <= 12.1.6
f5 big-ip domain name system>= 13.1.0 and < 13.1.4.1
f5 big-ip domain name system>= 14.1.0 and < 14.1.4.2
f5 big-ip domain name system>= 15.1.0 and < 15.1.3.1
f5 big-ip domain name system>= 16.0.0 and < 16.0.1.2
f5 big-ip fraud protection service>= 12.1.0 and <= 12.1.6
f5 big-ip fraud protection service>= 13.1.0 and < 13.1.4.1
f5 big-ip fraud protection service>= 14.1.0 and < 14.1.4.2
f5 big-ip fraud protection service>= 15.1.0 and < 15.1.3.1
f5 big-ip fraud protection service>= 16.0.0 and < 16.0.1.2
f5 big-ip global traffic manager>= 12.1.0 and <= 12.1.6
f5 big-ip global traffic manager>= 13.1.0 and < 13.1.4.1
f5 big-ip global traffic manager>= 14.1.0 and < 14.1.4.2
f5 big-ip global traffic manager>= 15.1.0 and < 15.1.3.1
f5 big-ip global traffic manager>= 16.0.0 and < 16.0.1.2
f5 big-ip link controller>= 12.1.0 and <= 12.1.6
f5 big-ip link controller>= 13.1.0 and < 13.1.4.1
f5 big-ip link controller>= 14.1.0 and < 14.1.4.2
f5 big-ip link controller>= 15.1.0 and < 15.1.3.1
f5 big-ip link controller>= 16.0.0 and < 16.0.1.2
f5 big-ip local traffic manager>= 12.1.0 and <= 12.1.6
f5 big-ip local traffic manager>= 13.1.0 and < 13.1.4.1
f5 big-ip local traffic manager>= 14.1.0 and < 14.1.4.2
f5 big-ip local traffic manager>= 15.1.0 and < 15.1.3.1
f5 big-ip local traffic manager>= 16.0.0 and < 16.0.1.2
f5 big-ip policy enforcement manager>= 12.1.0 and <= 12.1.6
f5 big-ip policy enforcement manager>= 13.1.0 and < 13.1.4
f5 big-ip policy enforcement manager>= 14.1.0 and < 14.1.4
f5 big-ip policy enforcement manager>= 15.1.0 and < 15.1.3
f5 big-ip policy enforcement manager>= 16.0.0 and < 16.1.0

▣

Scoring & Timeline

CRITICAL · CVSS v3.1 · f5sirt@f5.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD14 Sep 2021 · 06:15 PM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://support.f5.com/csp/article/K61643620MitigationVendor Advisory

Intelligence Graph · click any node to traverse

CVETechnique ActorTool Family

drag to reposition · click any node to traverse · button top-right enlarges

External lookups - second-class, for what we don’t hold ourselves

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities

Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs

Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures

Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1

About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service

threatengine.sh · Open-source threat intelligence platform · 100+ authoritative sources · Every fact traces to its origin