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Jenkins SAML Plugin Session Fixation vulnerability

Moderate severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Dec 6, 2023

Package

maven org.jenkins-ci.plugins:saml (Maven)

Affected versions

<= 1.0.6

Patched versions

1.0.7

Description

A session fixation vulnerability exists in Jenkins SAML Plugin 1.0.6 and earlier in SamlSecurityRealm.java that allows unauthorized attackers to impersonate another users if they can control the pre-authentication session. SAML Plugin 1.0.7 invalidates the previous session during login and creates a new one.

References

Published by the National Vulnerability Database Jun 26, 2018
Published to the GitHub Advisory Database May 14, 2022
Reviewed Dec 12, 2022
Last updated Dec 6, 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
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
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:N/UI:R/S:U/C:H/I:N/A:N

EPSS score

0.085%
(38th percentile)

Weaknesses

CVE ID

CVE-2018-1000602

GHSA ID

GHSA-4pjx-86pg-x4j5

Source code

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