Description
A unauthorized modification of configuration vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in User.java that allows attackers to provide crafted login credentials that cause Jenkins to move the config.xml file from the Jenkins home directory. If Jenkins is started without this file present, it will revert to the legacy defaults of granting administrator access to anonymous users.
References (2)
Core 2
Core References
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuapr2022.html
Mitigation, Vendor Advisory x_refsource_confirm
https://jenkins.io/security/advisory/2018-07-18/#SECURITY-897
Scores
CVSS v3
8.8
EPSS
0.2731
EPSS Percentile
96.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
Status
published
Products (3)
jenkins/jenkins
< 2.121.1
oracle/communications_cloud_native_core_automated_test_suite
1.9.0
org.jenkins-ci.main/jenkins-core
0 - 2.121.2Maven
Published
Jul 23, 2018
Tracked Since
Feb 18, 2026