Vulnerability CVE-2021-20278


Published: 2021-05-28

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.

Type:

CWE-290

(Authentication Bypass by Spoofing)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Kiali -> Kiali 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=1937171
https://kiali.io/news/security-bulletins/kiali-security-002/

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