This advisory announces vulnerabilities in the following Jenkins deliverables:
Copr Plugin 0.3 and earlier stores credentials unencrypted in job
config.xml files as part of its configuration.
These credentials can be viewed by users with Extended Read permission or access to the Jenkins controller file system.
Copr Plugin 0.6.1 stores these credentials encrypted. This change is effective once the job configuration is saved the next time.
Parasoft Findings Plugin 10.4.3 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows a user able to control the input files for the Parasoft Findings parser to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.
Parasoft Findings Plugin 10.4.4 disables external entity resolution for its XML parser.
Yaml Axis Plugin 0.2.0 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 a multi-configuration (Matrix) job, or control the contents of a previously configured job’s SCM repository.
Yaml Axis Plugin 0.2.1 configures its YAML parser to only instantiate safe types.
AWS SAM Plugin 1.2.2 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 a job or control the contents of a previously configured "AWS SAM deploy application" build step’s YAML SAM template file (
template.yaml or equivalent) file.
AWS SAM Plugin 1.2.3 configures its YAML parser to only instantiate safe types.
These versions include fixes to the vulnerabilities described above. All prior versions are considered to be affected by these vulnerabilities unless otherwise indicated.
The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities: