SB2019020621 - Sandbox restrictions bypass in Script Security plugin for Jenkins
Published: February 6, 2019 Updated: October 7, 2019
Security Bulletin ID
SB2019020621
CSH 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 vulnerability.
1) Improper access control (CVE-ID: CVE-2019-1003005)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
The vulnerability allows a remote attacker to bypass sandbox restrictions.
The vulnerability exists due to improper access restrictions in "src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/SecureGroovyScript.java". A remote authenticated attacker with Overall/Read permission can provide a Groovy script to an HTTP endpoint execute arbitrary code on the Jenkins master JVM.
Remediation
Install update from vendor's website.