SB2019022014 - Sandbox restrictions bypass in Script Security plugin for Jenkins
Published: February 20, 2019 Updated: October 7, 2019
Security Bulletin ID
SB2019022014
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2019-1003024)
The vulnerability allows a remote attacker to bypass sandbox restrictions.
The vulnerability exists due to improper access restrictions in "RejectASTTransformsCustomizer.java". A remote authenticated attacker with Overall/Read permission, or the ability to control Jenkins file or sandboxed Pipeline shared library contents in SCM, can provide a Groovy script to an HTTP endpoint that can result in arbitrary code execution on the Jenkins master JVM.
Remediation
Install update from vendor's website.