CVE-2021-22976 — Uncontrolled Resource Consumption in F5 Big-ip Advanced WEB Application Firewall

CWE-400 — Uncontrolled Resource Consumption4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.6%
top 29.22%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
F5 Big-ip Advanced WEB Application FirewallF5 Big-ip Application Security Manager
Timeline
PublishedFeb 12
Latest updateMay 24

Description

On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDf5/big-ip_application_security_manager13.1.0 — 13.1.3.6+4

🔴Vulnerability Details

2
GHSA
GHSA-5m63-vxpq-9j8m: On BIG-IP Advanced WAF and ASM version 16↗2022-05-24
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CVEList
CVE-2021-22976: On BIG-IP Advanced WAF and ASM version 16↗2021-02-12
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📋Vendor Advisories

1
F5
CVE-2021-22976: On BIG-IP Advanced WAF and ASM version 16↗2021-02-12
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CVE-2021-22976 — Uncontrolled Resource Consumption | cvebase