Atlassian 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.
Published: 2019-07-15
A proof-of-concept for critical Atlassian Crowd vulnerability patched on May 22 is now available. Background On July 14, security researcher Corben Leo published a blog detailing the analysis of a recently patched vulnerability in Atlassian Crowd, a user management application for access control for Active Directory (AD), Lightweight Directory Access Protocol (LDAP), OpenLDAP and Microsoft Azure AD.
https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a
https://jira.atlassian.com/browse/CWD-5388
http://www.securityfocus.com/bid/108637
http://packetstormsecurity.com/files/163810/Atlassian-Crowd-pdkinstall-Remote-Code-Execution.html