#VU26005 Permissions, Privileges, and Access Controls in Script Security - CVE-2020-2135
Published: March 11, 2020
Vulnerability identifier: #VU26005
Vulnerability risk: High
CVSSv4.0: 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:U/U:Amber
CVE-ID: CVE-2020-2135
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Script Security
Script Security
Software vendor:
Jenkins
Jenkins
Description
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the Sandbox protection can be circumvented through a crafted method calls on objects that implement "GroovyInterceptable". A remote authenticated attacker can specify and run sandboxed scripts to execute arbitrary code in the context of the Jenkins master JVM.
Remediation
Install updates from vendor's website.