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Advisories

OpenAM before 16.1.4 SSRF and CRL Tampering via Certificate CRL Distribution Point

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Severity
medium
Date
Affecting

  • OpenAM >= 0, < 16.1.4

CWE
  • CWE-918 Server-Side Request Forgery (SSRF)
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
Credit
maximthomas, tsujiguchitky, vharseko
Description
OpenAM before 16.1.4 contains a server-side request forgery vulnerability in certificate CRL checking that fetches CRLs from the distribution point named in a presented certificate without restricting the destination or verifying the downloaded CRL's signature. Attackers holding a trusted-CA-chained certificate can make OpenAM request internal hosts, capture configured CRL update credentials, overwrite stored revocation data to block certificate authentication for that CA, and tie up authentication threads.

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