CVE-2024-4712

Existe una vulnerabilidad de creación de archivos arbitraria en PaperCut NG/MF que solo afecta a los servidores Windows con Web Print habilitado. Esta vulnerabilidad requiere inicio de sesión local/acceso a la consola del servidor PaperCut NG/MF (por ejemplo: miembro de un grupo de administración de dominio).

An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabled. This specific flaw exists within the image-handler process, which can incorrectly create files that don’t exist when a maliciously formed payload is provided. This can lead to local privilege escalation.

Note:

This CVE has been split into two (CVE-2024-4712 and CVE-2024-8405) and it’s been rescored with a "Privileges Required (PR)" rating of low, and “Attack Complexity (AC)” rating of low, reflecting the worst-case scenario where an Administrator has granted local login access to standard network users on the host server.

This vulnerability allows local attackers to escalate privileges on affected installations of PaperCut NG. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the Web Print Image Handler. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.