Advisory Details

June 18th, 2024

PaperCut NG upload Link Following Information Disclosure Vulnerability

ZDI-24-780
ZDI-CAN-23074

CVE ID CVE-2024-1221
CVSS SCORE 6.5, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AFFECTED VENDORS PaperCut
AFFECTED PRODUCTS NG
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of PaperCut NG. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the upload endpoint. By uploading a symbolic link, an attacker can abuse the service to read arbitrary files. An attacker can leverage this vulnerability to disclose information in the context of root.

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-March-2024
DISCLOSURE TIMELINE
  • 2024-01-17 - Vulnerability reported to vendor
  • 2024-06-18 - Coordinated public release of advisory
  • 2024-08-15 - Advisory Updated
CREDIT Anonymous
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