Advisory Details

July 31st, 2024

PaperCut NG web-print-hot-folder Link Following Local Privilege Escalation Vulnerability

ZDI-24-1039
ZDI-CAN-23757

CVE ID CVE-2024-8404
CVSS SCORE 7.8, AV:L/AC:L/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 PCWebService. By creating a symbolic link, an attacker can abuse the service to delete a file. 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-May-2024
DISCLOSURE TIMELINE
  • 2024-03-27 - Vulnerability reported to vendor
  • 2024-07-31 - Coordinated public release of advisory
  • 2024-09-30 - Advisory Updated
CREDIT Amol Dosanjh, Nicholas Zubrisky (@NZubrisky) and Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative
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