[io.jenkins.plugins:scm-filter-jervis] RCE vulnerability in SCM Filter Jervis Plugin

SCM Filter Jervis Plugin 0.2.1 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types. This results in a remote code execution (RCE) vulnerability exploitable by users able to configure jobs with the filter, or control the contents of a previously configured job’s SCM repository.

SCM Filter Jervis Plugin 0.3 configures its YAML parser to only instantiate safe types.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-2189
• https://jenkins.io/security/advisory/2020-05-06/#SECURITY-1826
• http://www.openwall.com/lists/oss-security/2020/05/06/3
• https://github.com/advisories/GHSA-4hhq-j3xw-wj89