CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
Low
EPSS
Percentile
15.5%
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).
[
{
"packageName": "strongswan",
"platforms": [
"Linux"
],
"product": "strongSwan",
"repo": "https://github.com/strongswan/strongswan",
"vendor": "strongSwan",
"versions": [
{
"lessThan": "5.9.6",
"status": "affected",
"version": "5.9.2",
"versionType": "semver"
}
]
}
]