#VU17912 Security restrictions bypass in Script Security - CVE-2019-1003029

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Main Vulnerability Database Vulnerabilities #VU17912

#VU17912 Security restrictions bypass in Script Security - CVE-2019-1003029

Published: March 7, 2019 / Updated: April 25, 2022


Vulnerability identifier: #VU17912
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/U:Green
CVE-ID: CVE-2019-1003029
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
Script Security
Software vendor:
Jenkins

Description

The vulnerability allows a remote attacker to execute arbitrary code on the vulnerable server.

The vulnerability exists due to an error  in "src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/GroovySandbox.java" and "src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/SecureGroovyScript.java" when parsing, compiling or instantiating a Groovy script. A remote attacker with Overall/Read permission can supply a specially crafted Groovy script, bypass the sandbox protection and execute arbitrary code on the Jenkins master.

The vulnerability can be exploited via an HTTP endpoint that provides script validation or via another plugin on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected server.


Remediation

Install update from vendor's website.

External links