Vulnerability CVE-2021-23000


Published: 2021-03-31

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.

Type:

NVD-CWE-noinfo

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
F5 -> Big-ip access policy manager 
F5 -> Big-ip advanced firewall manager 
F5 -> Big-ip advanced web application firewall 
F5 -> Big-ip analytics 
F5 -> Big-ip application acceleration manager 
F5 -> Big-ip application security manager 
F5 -> Big-ip ddos hybrid defender 
F5 -> Big-ip domain name system 
F5 -> Big-ip fraud protection service 
F5 -> Big-ip global traffic manager 
F5 -> Big-ip link controller 
F5 -> Big-ip local traffic manager 
F5 -> Big-ip policy enforcement manager 
F5 -> Ssl orchestrator 

 References:
https://support.f5.com/csp/article/K34441555

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