XML External Entity injection in Jenkins Subversion Plugin - CVE-2020-2304

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Main Vulnerability Database Vulnerabilities #VU48231

XML External Entity injection in Jenkins Subversion Plugin - CVE-2020-2304

Published: November 4, 2020 / Updated: November 9, 2020


Vulnerability identifier: #VU48231
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-2304
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote authenticated attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.


Affected software

Jenkins Subversion Plugin
Red Hat OpenShift Container Platform
openshift (Red Hat package)
openshift-kuryr (Red Hat package)
jenkins-2-plugins (Red Hat package)

How to mitigate CVE-2020-2304

Install updates from vendor's website.

Jenkins Subversion Plugin - update to 2.13.2
Red Hat OpenShift Container Platform - update to 4.4.33
openshift (Red Hat package) - addressed in versions 4.4.0-202101221150.p0.git.0.f7ab6b8.el7, 4.4.0-202101221150.p0.git.0.f7ab6b8.el8
openshift-kuryr (Red Hat package) - update to 4.4.0-202101082241.p0.git.1821.1a159eb.el8
jenkins-2-plugins (Red Hat package) - update to 4.4.1611203637-1.el7

External References

Related Security Bulletins