NoMachine Incorrect Permission Assignment Local Privilege Escalation Vulnerability

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. 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 product installer. The issue results from incorrect permissions on a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

Additional Details

NoMachine has issued an update to correct this vulnerability. More details can be found at:
https://kb.nomachine.com/SU01W00263

Disclosure Timeline

• 2024-09-26 - Vulnerability reported to vendor
• 2025-02-03 - Coordinated public release of advisory
• 2025-02-03 - Advisory Updated

Credit

Anonymous

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