CVE-2020-2099
HIGH8.6EPSS 0.64%Inbound TCP Agent Protocol/3 authentication bypass in Jenkins
Published: 5/24/2022Modified: 4/3/2025
Description
Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.
Affected packages (2)
- Bitnami/jenkinsfrom 0, < 2.218.1
- Maven/org.jenkins-ci.main:jenkins-corefrom 0, < 2.204.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
References (9)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-2099
- PATCHhttps://github.com/jenkinsci/jenkins
- WEBhttps://access.redhat.com/errata/RHBA-2020:0402
- WEBhttps://access.redhat.com/errata/RHBA-2020:0675
- WEBhttps://access.redhat.com/errata/RHSA-2020:0681
- WEBhttps://access.redhat.com/errata/RHSA-2020:0683
- WEBhttps://github.com/jenkinsci/jenkins/commit/5054bc6e12e1022993d719f66e289ab1d22ae854
- WEBhttps://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682
- WEBhttp://www.openwall.com/lists/oss-security/2020/01/29/1