XML External Entity injection in Nexus Platform - CVE-2023-50767

Description

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

The vulnerability exists due to the affected plugin does not perform permission checks in methods implementing form validation. A remote user 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

External links

• https://www.jenkins.io/security/advisory/2023-12-13/#SECURITY-3204
• http://www.openwall.com/lists/oss-security/2023/12/13/4