CVE-2021-23000

4 documents4 sources
Severity
7.5HIGH
EPSS
0.6%
top 29.26%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
14
F5 Big-ip Access Policy ManagerF5 Big-ip Advanced Firewall ManagerF5 Big-ip Advanced WEB Application Firewall+11 more
Timeline
PublishedMar 31
Latest updateMay 24

Description

On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2, if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system, or the Bad host header value is checked in the AFM HTTP security profile associated with a virtual server, in rare instances, a specific sequence of malicious requests may cause TMM to restart. 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 Packages15 packages

▶NVDf5/big-ip_domain_name_system13.1.3.4 — 13.1.3.6+1
▶NVDf5/big-ip_policy_enforcement_manager13.1.3.4 — 13.1.3.6+1
▶NVDf5/big-ip_application_security_manager13.1.3.4 — 13.1.3.6+1
▶NVDf5/big-ip_analytics13.1.3.4 — 13.1.3.6+1
▶NVDf5/ssl_orchestrator13.1.3.4 — 13.1.3.6+1

🔴Vulnerability Details

2
GHSA
GHSA-6vhg-w9jf-mcqf: On BIG-IP versions 13↗2022-05-24
▶
CVEList
CVE-2021-23000: On BIG-IP versions 13↗2021-03-31
▶

📋Vendor Advisories

1
F5
CVE-2021-23000: On BIG-IP versions 13↗2021-03-31
▶
CVE-2021-23000 (HIGH CVSS 7.5) | On BIG-IP versions 13.1.3.4-13.1.3. | cvebase.io