PaperCut NG Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

December 15th, 2023
ZDI-23-1798 ZDI-CAN-21500

CVE ID

CVE-2023-6006

CVSS Score

7.0 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

PaperCut

Affected Products

NG

Vulnerability Details

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 pc-pdl-to-image process. The process loads an executable from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

Additional Details

PaperCut has issued an update to correct this vulnerability. More details can be found at:
https://www.papercut.com/kb/Main/security-bulletin-november-2023/

Disclosure Timeline

  • 2023-07-04 - Vulnerability reported to vendor
  • 2023-12-15 - Coordinated public release of advisory

Credit

Amol Dosanjh of Trend Micro and Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative

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