Vulnerability · Published Feb 24, 2021 · Assigned by jenkins
CVE-2021-21621
Medium 5.3
In plain English
A medium-severity security flaw in Jenkins Support Core Plugin 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 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)1.2%top 31.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Jenkins Support Core Plugin 2.72 and earlier provides the serialized user authentication as part of the "About user (basic authentication details only)" information, which can include the session ID of the user creating the support bundle in some configurations.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.plugins:support-core | 2.72.1 | GHSA-92pg-8g57-hqpx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins Support Core Plugin | unspecified – through 2.72 |
References
- https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2150 x_refsource_CONFIRM