CVE-2021-23000

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
f5CNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 69%
VendorProductVersion
f5big-ip_access_policy_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_access_policy_manager
12.1.5.2
f5big-ip_advanced_firewall_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_advanced_firewall_manager
12.1.5.2
f5big-ip_advanced_web_application_firewall
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_advanced_web_application_firewall
12.1.5.2
f5big-ip_analytics
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_analytics
12.1.5.2
f5big-ip_application_acceleration_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_application_acceleration_manager
12.1.5.2
f5big-ip_application_security_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_application_security_manager
12.1.5.2
f5big-ip_ddos_hybrid_defender
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_ddos_hybrid_defender
12.1.5.2
f5big-ip_domain_name_system
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_domain_name_system
12.1.5.2
f5big-ip_fraud_protection_service
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_fraud_protection_service
12.1.5.2
f5big-ip_global_traffic_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_global_traffic_manager
12.1.5.2
f5big-ip_link_controller
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_link_controller
12.1.5.2
f5big-ip_local_traffic_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_local_traffic_manager
12.1.5.2
f5big-ip_policy_enforcement_manager
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5big-ip_policy_enforcement_manager
12.1.5.2
f5ssl_orchestrator
13.1.3.4 ≤
𝑥
< 13.1.3.6
f5ssl_orchestrator
12.1.5.2
𝑥
= Vulnerable software versions