Vulnerability · Published Oct 6, 2021 · Assigned by jenkins
CVE-2021-21683
Medium 6.5
In plain English
A medium-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 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)2.2%top 17.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | 2.303.2 | GHSA-4pw5-r58h-fv24 |
| Maven | org.jenkins-ci.main:jenkins-core | 2.315 | GHSA-4pw5-r58h-fv24 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins | unspecified – through 2.314unspecified – through LTS 2.303.1 |
References
- https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2481 x_refsource_CONFIRM
- [oss-security] 20211006 Multiple vulnerabilities in Jenkins and Jenkins plugins mailing-list, x_refsource_MLIST