Vulnerability identifier: #VU25280

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2020-2110

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Script Security
Web applications / Modules and components for CMS

Vendor: Jenkins

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to the sandbox protection in the affected plugin can be circumvented during the script compilation phase by applying AST transforming annotations such as "@Grab" to imports or by using them inside of other annotations. A remote user with Overall/Read permission can bypass sandbox protection and execute arbitrary code in the context of the Jenkins master JVM.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Script Security: 1.0 - 1.69

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CPE

• cpe:2.3:a:jenkins:script-security:1.57.5:*:*:*:*:jenkins:*:*

External links
http://www.openwall.com/lists/oss-security/2020/02/12/3
http://jenkins.io/security/advisory/2020-02-12/#SECURITY-1713

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?