Jenkins Groovy Plugin - RCE (CVE-2019-1003030)

CVE-2019-1003030 is a high-severity sandbox bypass vulnerability in the Jenkins Pipeline: Groovy Plugin, allowing attackers in control of pipeline scripts to execute arbitrary code on the Jenkins master JVM.

CrowdSec has been tracking this vulnerability and its exploits since 17th of January 2024.

CrowdSec network data shows that most actors exploiting CVE-2019-1003030 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2019-1003030 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2019-1003030 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Attempts to exploit this issue typically involve manipulating pipeline scripts to trigger unsafe code paths within Jenkins environments.