PT-2019-11302 · Jenkins · Groovy Plugin+2

Orange Tsai · Published 2019-01-22 · Updated 2023-10-25 · CVE-2019-1003001

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Pipeline: Groovy Plugin versions 2.61 and earlier

Description: A sandbox bypass issue exists that allows attackers with Overall/Read permission to execute arbitrary code on the Jenkins master JVM by providing a pipeline script to an HTTP endpoint. The Jenkins Script Security sandbox protection could be circumvented during the script compilation phase by applying AST transforming annotations such as @Grab to source code elements. Both the pipeline validation REST APIs and actual script/pipeline execution are affected, allowing users with Overall/Read permission to bypass the sandbox protection and execute arbitrary code on the Jenkins controller.

Recommendations: For Pipeline: Groovy Plugin versions 2.61 and earlier, consider disabling the CpsFlowDefinition and CpsGroovyShellFactory classes until a patch is available. Restrict access to the pipeline validation REST APIs and actual script/pipeline execution to minimize the risk of exploitation. Avoid using AST transforming annotations such as @Grab in sandboxed scripts until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2019-1003001

GHSA-6Q78-6XVR-26FG

Affected Products

Groovy Plugin

Jenkins

Pipeline

References · 14

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/jenkins_metaprogramming.rb · Exploit
• 🔥 https://exploit-db.com/exploits/46427 · Exploit
• 🔥 https://exploit-db.com/exploits/46572 · Exploit
• 🔥 http://packetstormsecurity.com/files/152132/Jenkins-ACL-Bypass-Metaprogramming-Remote-Code-Execution.html · Exploit
• https://access.redhat.com/errata/RHBA-2019:0326 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-1003001 · Vendor Advisory
• https://access.redhat.com/errata/RHBA-2019:0327 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6q78-6xvr-26fg · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1003001 · Security Note
• https://jenkins.io/security/advisory/2019-01-08/#SECURITY-1266 · Vendor Advisory
• https://github.com/jenkinsci/pipeline-model-definition-plugin/commit/6d7884dec610bf34503d24d494d994e9fc607642 · Note
• https://github.com/jenkinsci/workflow-cps-plugin/commit/66c3e7aafe7888d4e1fe9995a688bb3fb742d742 · Note
• https://github.com/jenkinsci/script-security-plugin/commit/2c5122e50742dd16492f9424992deb21cc07837c · Note
• http://rapid7.com/db/modules/exploit/multi/http/jenkins_metaprogramming · Note