Vulnerability · Published Nov 4, 2021 · Assigned by jenkins
CVE-2021-21688
High 7.5
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 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.4%top 27.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The agent-to-controller security check FilePath#reading(FileVisitor) in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not reject any operations, allowing users to have unrestricted read access using certain operations (creating archives, FilePath#copyRecursiveTo).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | 2.303.3 | GHSA-m9hr-259f-2v23 |
| Maven | org.jenkins-ci.main:jenkins-core | 2.319 | GHSA-m9hr-259f-2v23 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins | unspecified – through 2.318unspecified – through LTS 2.303.2 |
References
- https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455 x_refsource_CONFIRM