Vulnerability · Published Jan 13, 2021 · Assigned by jenkins
CVE-2021-21605
High 8.0
In plain English
A high-severity security flaw in Jenkins from Jenkins project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.0High
Exploit odds (30 days)2.2%top 17.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows users with Agent/Configure permission to choose agent names that cause Jenkins to override the global `config.xml` file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21605 |
| Alpine:v3.21 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21605 |
| Alpine:v3.22 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21605 |
| Alpine:v3.23 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21605 |
| Alpine:v3.24 | jenkins | 2.275-r0 | ALPINE-CVE-2021-21605 |
| Maven | org.jenkins-ci.main:jenkins-core | 2.263.2 | GHSA-pxgq-gqr9-5gwx |
| Maven | org.jenkins-ci.main:jenkins-core | 2.275 | GHSA-pxgq-gqr9-5gwx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins | unspecified – through 2.274unspecified – through LTS 2.263.1 |
References
- https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2021 x_refsource_CONFIRM