CVE-2021-20278

CVSS V2 Medium 5.8 CVSS V3 Medium 6.5
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.
Overview
  • CVE ID
  • CVE-2021-20278
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-05-28T11:15:08
  • Last Modified Date
  • 2022-08-05T15:20:07
Weakness Enumerations
CWE URL
CWE-287 http://cwe.mitre.org/data/definitions/287.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:kiali:kiali:*:*:*:*:*:*:*:* 1 OR 1.31.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.5
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20278
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20278
History
Created Old Value New Value Data Type Notes
2022-05-10 16:13:59 Added to TrackCVE
2022-12-05 03:13:44 2021-05-28T11:15Z 2021-05-28T11:15:08 CVE Published Date updated
2022-12-05 03:13:44 2022-08-05T15:20:07 CVE Modified Date updated
2022-12-05 03:13:44 Analyzed Vulnerability Status updated