Information disclosure in Jenkins
CVE-2020-2103
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.
Vulnerability class: Information Disclosure
EPSS: 0.070 (93.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Jenkins
- Jenkins Project — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jenkinsci-cert@googlegroups.com (x_refsource_CONFIRM, Vendor Advisory)
- jenkinsci-cert@googlegroups.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- jenkinsci-cert@googlegroups.com (x_refsource_REDHAT, vendor-advisory)
- jenkinsci-cert@googlegroups.com (x_refsource_REDHAT, vendor-advisory)
- jenkinsci-cert@googlegroups.com (x_refsource_REDHAT, vendor-advisory)
- jenkinsci-cert@googlegroups.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2020-2103?
- CVE-2020-2103 is a medium-severity vulnerability in Jenkins, classified under Information Disclosure. CVSS score: 5.4/10. Published 2020-01-29.
- How severe is CVE-2020-2103?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2020-2103 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.