medium6.5
CVE-2020-2305
XXE vulnerability in Jenkins Mercurial Plugin
Impact
Jenkins Mercurial Plugin prior to 2.12, 2.10.1, 2.9.1, and 2.8.1 does not configure its XML changelog parser to prevent XML external entity (XXE) attacks. This allows attackers able to control an agent process to have Jenkins parse a crafted changelog file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Mercurial Plugin 2.12, 2.10.1, 2.9.1, and 2.8.1 disables external entity resolution for its XML parser.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.plugins:mercurial | = 2.11 | 2.12 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Jenkins | Mercurial | through 2.11 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2115
- https://github.com/advisories/GHSA-x58r-wxc3-7pqr
- https://nvd.nist.gov/vuln/detail/CVE-2020-2305
- https://github.com/CVEProject/cvelist/blob/381fe967666a5ce01625a7a050427aa4757e3ca6/2020/2xxx/CVE-2020-2305.json
- https://github.com/jenkinsci/mercurial-plugin/commit/84af58b08f80bb92792f7bc04a31487f3eeee95a