Description
Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly enabled in release builds. Attackers who can send unauthenticated or authenticated requests to a Crowd or Crowd Data Center instance can exploit this vulnerability to install arbitrary plugins, which permits remote code execution on systems running a vulnerable version of Crowd or Crowd Data Center.
All versions of Crowd from version 2.1.0 before 3.0.5 (the fixed version for 3.0.x), from version 3.1.0 before 3.1.6 (the fixed version for 3.1.x), from version 3.2.0 before 3.2.8 (the fixed version for 3.2.x), from version 3.3.0 before 3.3.5 (the fixed version for 3.3.x), and from version 3.4.0 before 3.4.4 (the fixed version for 3.4.x) are affected by this vulnerability.
Remediation
Upgrade to the later version of Atlassian Crowd and Crowd Data Center.
- Crowd and Crowd Data Center version 3.4.4 that contains a fix for this issue and can downloaded from https://www.atlassian.com/software/crowd/download
- Crowd and Crowd Data Center versions 3.0.5, 3.1.6, 3.2.8, and 3.3.5 that contain a fix for this issue and can downloaded from https://www.atlassian.com/software/crowd/download-archive
References
Crowd: pdkinstall development plugin incorrectly enabled