Auth bypass in Jenkins
CVE-2017-1000354
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/98065 (VDB Entry, Third Party Advisory, vdb-entry)
- jenkins.io/security/advisory/2017-04-26/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-1000354?
- CVE-2017-1000354 is a high-severity vulnerability in Jenkins, classified under Improper Authentication. CVSS score: 8.8/10. Published 2018-01-29.
- How severe is CVE-2017-1000354?
- High severity. CVSS v3 base score is 8.8 out of 10.