Vulnerability · Published Jan 26, 2021 · Assigned by jenkins
CVE-2021-21615
Medium 5.3
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 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)0.9%top 39.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | 2.263.3 | GHSA-qxp6-27gw-99cj |
| Maven | org.jenkins-ci.main:jenkins-core | 2.276 | GHSA-qxp6-27gw-99cj |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins | 2.275LTS 2.263.2 |
References
- https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197 x_refsource_CONFIRM
- [oss-security] 20210126 Vulnerability in Jenkins mailing-list, x_refsource_MLIST