(Pwn2Own) HP LaserJet Pro MFP 3301fdw suidexec Command Injection Local Privilege Escalation Vulnerability
Vulnerability Details
This vulnerability allows local attackers to escalate privileges on affected installations of HP LaserJet Pro MFP 3301fdw printers. 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 suidexec executable. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
Additional Details
HP has issued an update to correct this vulnerability. More details can be found at:
https://support.hp.com/us-en/document/ish_11953771-11953793-16/hpsbpi04007
Disclosure Timeline
- 2025-02-24 - Vulnerability reported to vendor
- 2025-03-03 - Coordinated public release of advisory
- 2025-03-03 - Advisory Updated
Credit
Felipe Jacob Custodio Romero, Neodyme AG
