Authentication Bypass in PaperCut NG by PaperCut Software
CVE-2023-27351

7.5HIGH

Key Information:

Vendor
Papercut
Status
Ng
Vendor
CVE Published:
20 April 2023

Summary

A vulnerability exists in PaperCut NG versions 22.0.5 and earlier, allowing remote attackers to bypass authentication without needing to provide valid credentials. This flaw is rooted in the SecurityRequestFilter class and arises from improper implementation of the authentication process. Exploiting this vulnerability enables unauthorized access to the system, putting sensitive information at risk.

Affected Version(s)

NG 22.0.5 (Build 63914)

References

https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
https://www.zerodayinitiative.com/advisories/ZDI-23-232/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
.