CVE-2021-20278
Last modified
CVE-2021-20278 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
Description
An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kiali | Kiali | < 1.31.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1937171Issue Tracking, Patch, Third Party Advisory
- https://kiali.io/news/security-bulletins/kiali-security-002/Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1937171Issue Tracking, Patch, Third Party Advisory
- https://kiali.io/news/security-bulletins/kiali-security-002/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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