SB2020101217 - XML External Entity injection in Jenkins Nerrvana plugin

Description

This security bulletin contains information about 1 security vulnerability.

1) XML External Entity injection (CVE-ID: CVE-2020-2298)

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.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• http://www.openwall.com/lists/oss-security/2020/10/08/5
• https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-2097