Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2021-23000

Disclosure Date: March 31, 2021 •
CVE-2021-23000 CVSS v3 Base Score: 7.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
BIG-IP 13.1.3.4-13.1.3.5, 12.1.5.2
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • f5

Products

  • big-ip access policy manager,
  • big-ip access policy manager 12.1.5.2,
  • big-ip advanced firewall manager,
  • big-ip advanced firewall manager 12.1.5.2,
  • big-ip advanced web application firewall,
  • big-ip advanced web application firewall 12.1.5.2,
  • big-ip analytics,
  • big-ip analytics 12.1.5.2,
  • big-ip application acceleration manager,
  • big-ip application acceleration manager 12.1.5.2,
  • big-ip application security manager,
  • big-ip application security manager 12.1.5.2,
  • big-ip ddos hybrid defender,
  • big-ip ddos hybrid defender 12.1.5.2,
  • big-ip domain name system,
  • big-ip domain name system 12.1.5.2,
  • big-ip fraud protection service,
  • big-ip fraud protection service 12.1.5.2,
  • big-ip global traffic manager,
  • big-ip global traffic manager 12.1.5.2,
  • big-ip link controller,
  • big-ip link controller 12.1.5.2,
  • big-ip local traffic manager,
  • big-ip local traffic manager 12.1.5.2,
  • big-ip policy enforcement manager,
  • big-ip policy enforcement manager 12.1.5.2,
  • ssl orchestrator,
  • ssl orchestrator 12.1.5.2

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis