Home/CVE/strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate
CVE

CVE-2022-4967

strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate

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).

HIGH · CVSS 7.7 EPSS 0.00047
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

1
strongswan>= 5.9.2 and < 5.9.6
▣

Scoring & Timeline

7.7
HIGH · CVSS v3.1 · security@ubuntu.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 May 2024 · 11:57 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
usnUSN-6772-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136Patch
https://security.netapp.com/advisory/ntap-20240614-0006/Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2022-4967Third Party Advisory
https://www.strongswan.org/blog/2024/05/13/strongswan-vulnerability-(cve-2022-4967).htmlMitigationVendor Advisory
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