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Improper Authentication in Jenkins

Moderate severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Dec 18, 2023

Package

maven org.jenkins-ci.main:jenkins-core (Maven)

Affected versions

< 2.121.3
>= 2.122, < 2.138

Patched versions

2.121.3
2.138

Description

A improper authentication vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in SecurityRealm.java, TokenBasedRememberMeServices2.java that allows attackers with a valid cookie to remain logged in even if that feature is disabled.

References

Published by the National Vulnerability Database Aug 23, 2018
Published to the GitHub Advisory Database May 14, 2022
Reviewed Jun 28, 2022
Last updated Dec 18, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS score

0.054%
(23rd percentile)

Weaknesses

CVE ID

CVE-2018-1999045

GHSA ID

GHSA-q4cq-r7hg-pxqq

Source code

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