Description
Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to a login command which allowed impersonating any Jenkins user. The `login` command available in the remoting-based CLI stored the encrypted user name of the successfully authenticated user in a cache file used to authenticate further commands. Users with sufficient permission to create secrets in Jenkins, and download their encrypted values (e.g. with Job/Configure permission), were able to impersonate any other Jenkins user on the same instance.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/98065
Vendor Advisory x_refsource_confirm
https://jenkins.io/security/advisory/2017-04-26/
Scores
CVSS v3
8.8
EPSS
0.0035
EPSS Percentile
57.7%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-287
Status
published
Products (3)
jenkins/jenkins
< 2.46.1
jenkins/jenkins
< 2.56
org.jenkins-ci.main/jenkins-core
2.50 - 2.57Maven
Published
Jan 29, 2018
Tracked Since
Feb 18, 2026