Vulnerability identifier: #VU21569

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1003024

CWE-ID: CWE-284

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 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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Script Security: 1.0 - 1.52

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External links
http://jenkins.io/security/advisory/2019-02-19/#SECURITY-1320

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.