Remote code execution in Splunk plugin for Jenkins



Published: 2019-08-28 | Updated: 2019-10-07
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-10390
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Splunk
Web applications / Modules and components for CMS

Vendor Jenkins

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU21527

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-2019-10390

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 affected software has a form validation HTTP endpoint used to validate a user-submitted Groovy script through compilation, which was not subject to sandbox protection. A remote authenticated attacker with Overall/Read access can execute arbitrary code on the Jenkins master by applying AST transforming annotations such as "@Grab" to source code elements.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Splunk: 1.0 - 1.7.4

External links

http://www.openwall.com/lists/oss-security/2019/08/28/4
http://jenkins.io/security/advisory/2019-08-28/#SECURITY-1294


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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