Bug 2280412 (CVE-2022-4967)

Summary: CVE-2022-4967 strongswan: potential authorization bypass with TLS-based EAP methods
Product: [Other] Security Response Reporter: Robb Gatica <rgatica>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: strongswan 5.9.6 Doc Type: If docs needed, set a value
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Bug Depends On: 2280413, 2280414    
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Description Robb Gatica 2024-05-14 22:49:00 UTC 
strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic if the identity is used to make policy decisions. A fix was released in strongSwan version 5.9.6 in August 2022 (e4b4aabc4996fc61c37deab7858d07bc4d220136).

https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136
https://www.cve.org/CVERecord?id=CVE-2022-4967
https://www.strongswan.org/blog/2024/05/13/strongswan-vulnerability-(cve-2022-4967).html
Comment 1 Robb Gatica 2024-05-14 22:49:17 UTC 
Created strongswan tracking bugs for this issue:

Affects: epel-all [bug 2280413]
Affects: fedora-all [bug 2280414]