CVE-2017-1000354

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-01-29 · updated 2026-06-17
Weakness: CWE-287

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.

Affected products

Jenkins: through 2.56; through 2.46.1

References

http://www.securityfocus.com/bid/98065
https://jenkins.io/security/advisory/2017-04-26/
http://www.securityfocus.com/bid/98065
https://jenkins.io/security/advisory/2017-04-26/

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