Critical [CVE-2021-23008] BIG-IP: On version 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and all versions of 16.0.x…
This critical-severity F5 advisory covers CVE-2021-23008 affecting BIG-IP, APM.
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Summary
On version 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and all versions of 16.0.x and 11.6.x., BIG-IP APM AD (Active Directory) authentication can be bypassed via a spoofed AS-REP (Kerberos Authentication Service Response) response sent over a hijacked KDC (Kerberos Key Distribution Center) connection or from an AD server compromised by an attacker.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 15.1.x
- 14.1.x
- 13.1.x
- 12.1.x
- all versions
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 15.1.3
- 14.1.4
- 13.1.4
- 12.1.6
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 15.1.3, 14.1.4, 13.1.4, 12.1.6. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Discussion(0)
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