Advisory Details

August 30th, 2023

PaperCut NG External User Lookup Code Injection Remote Code Execution Vulnerability

ZDI-23-1285
ZDI-CAN-21013

CVE ID CVE-2023-39469
CVSS SCORE 7.2, AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS PaperCut
AFFECTED PRODUCTS NG
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of PaperCut NG. Authentication is required to exploit this vulnerability.

The specific flaw exists within the External User Lookup functionality. The issue results from the lack of proper validation of a user-supplied string before using it to execute Java code. An attacker can leverage this vulnerability to execute 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/SecurityBulletinJuly2023/
DISCLOSURE TIMELINE
  • 2023-06-07 - Vulnerability reported to vendor
  • 2023-08-30 - Coordinated public release of advisory
  • 2023-09-07 - Advisory Updated
CREDIT Anonymous
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