CVE-2021-3636

CVSS V2 Medium 4.1 CVSS V3 Medium 4.6
Description
It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.
Overview
  • CVE ID
  • CVE-2021-3636
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-30T20:15:07
  • Last Modified Date
  • 2022-10-27T12:28:52
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:redhat:openshift:*:*:*:*:*:*:*:* 1 OR 4.8
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:S/C:P/I:P/A:N
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 5.1
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 4.6
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.1
  • Impact Score
  • 2.5
References
Reference URL Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1978621 Exploit Issue Tracking Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3636
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3636
History
Created Old Value New Value Data Type Notes
2022-05-10 06:57:58 Added to TrackCVE
2022-12-05 07:05:36 2021-07-30T20:15Z 2021-07-30T20:15:07 CVE Published Date updated
2022-12-05 07:05:36 2022-10-27T12:28:52 CVE Modified Date updated
2022-12-05 07:05:36 Analyzed Vulnerability Status updated