Vulnerability · Published Nov 4, 2021 · Assigned by jenkins
CVE-2021-21695
High 8.8
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 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)2.1%top 17.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
FilePath#listFiles lists files outside directories that agents are allowed to access when following symbolic links in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | 2.303.3 | GHSA-cvvm-4cr9-r436 |
| Maven | org.jenkins-ci.main:jenkins-core | 2.319 | GHSA-cvvm-4cr9-r436 |
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
- [oss-security] 20211104 Multiple vulnerabilities in Jenkins and Jenkins plugins mailing-list, x_refsource_MLIST