CVE-2021-20278

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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 5.8 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:N

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1937171	Issue Tracking Patch Third Party Advisory
https://kiali.io/news/security-bulletins/kiali-security-002/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kiali:kiali:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-05-28 11:15

Updated : 2022-08-05 15:20

NVD link : CVE-2021-20278

Mitre link : CVE-2021-20278

CVE.ORG link : CVE-2021-20278

JSON object : View

Products Affected

kiali

kiali

CWE

CWE-287

Improper Authentication

CWE-290

Authentication Bypass by Spoofing

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