Sandbox restrictions bypass in Jenkins Script Security plugin



Published: 2020-09-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-2279
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Script Security
Web applications / Modules and components for CMS

Vendor Jenkins

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU47187

Risk: Medium

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-2020-2279

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to the sandbox protection bypass in the affected plugin. A remote authenticated attacker can provide a specially crafted return values or script binding content and execute arbitrary code on the Jenkins controller JVM.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Script Security: 1.0 - 1.74

CPE2.3 External links

http://www.openwall.com/lists/oss-security/2020/09/23/1
http://www.jenkins.io/security/advisory/2020-09-23/#SECURITY-2020


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.



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