Medium severity · published May 14, 2024
CVE-2022-4967
strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297)
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ST
Strongswan · Strongswan
5.9.2 before 5.9.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-4967
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-4967
Patch
https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240614-0006/
Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2022-4967
Mitigation
https://www.strongswan.org/blog/2024/05/13/strongswan-vulnerability-(cve-2022-4967).html
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