CVE-2021-21646
Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.75% probability · 77th percentile
- CISA KEV
- Not listed
- Affected
- jenkins/templating engine
- Source
- jenkinsci-cert@googlegroups.com
References
- http://www.openwall.com/lists/oss-security/2021/04/21/2Mailing List, Third Party Advisory
- https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/04/21/2Mailing List, Third Party Advisory
- https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.