Cyber Resilience

CVE-2022-23031

Medium

Published: 25 January 2022

Published
25 January 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0037 59.5th percentile
Risk Priority 10 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-23031 is a medium-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in F5 Big-Ip Advanced Web Application Firewall. Its CVSS base score is 4.9 (Medium).

Operationally, ranked in the top 40.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

On BIG-IP FPS, ASM, and Advanced WAF versions 16.1.x before 16.1.1, 15.1.x before 15.1.4, and 14.1.x before 14.1.4.4, an XML External Entity (XXE) vulnerability exists in an undisclosed page of the F5 Advanced Web Application Firewall (Advanced WAF) and BIG-IP…

more

ASM Traffic Management User Interface (TMUI), also referred to as the Configuration utility, that allows an authenticated high-privileged attacker to read local files and force BIG-IP to send HTTP requests. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

f5
big-ip advanced web application firewall
14.1.0 — 14.1.4 · 15.1.0 — 15.1.3 · 16.0.0 — 16.1.0
f5
big-ip application security manager
14.1.0 — 14.1.4 · 15.1.0 — 15.1.3 · 16.0.0 — 16.1.0
f5
big-ip fraud protection service
14.1.0 — 14.1.4 · 15.1.0 — 15.1.3 · 16.0.0 — 16.1.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-611

Penetration testing includes XML external entity payloads, detecting XXE vulnerabilities and enabling their mitigation.

addresses: CWE-611

Identifies XML external entity processing via monitoring of unusual file/network access or resource usage.

References