// For flags

CVE-2023-27351

PaperCut NG SecurityRequestFilter Authentication Bypass Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226.

This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system.

*Credits: Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-02-28 CVE Reserved
  • 2023-03-14 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-11-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Papercut
Search vendor "Papercut"
Papercut Mf
Search vendor "Papercut" for product "Papercut Mf"
>= 15.0.0 < 20.1.7
Search vendor "Papercut" for product "Papercut Mf" and version " >= 15.0.0 < 20.1.7"
-
Affected
Papercut
Search vendor "Papercut"
Papercut Mf
Search vendor "Papercut" for product "Papercut Mf"
>= 21.0.0 < 21.2.11
Search vendor "Papercut" for product "Papercut Mf" and version " >= 21.0.0 < 21.2.11"
-
Affected
Papercut
Search vendor "Papercut"
Papercut Mf
Search vendor "Papercut" for product "Papercut Mf"
>= 22.0.0 < 22.0.9
Search vendor "Papercut" for product "Papercut Mf" and version " >= 22.0.0 < 22.0.9"
-
Affected
Papercut
Search vendor "Papercut"
Papercut Ng
Search vendor "Papercut" for product "Papercut Ng"
>= 15.0.0 < 20.1.7
Search vendor "Papercut" for product "Papercut Ng" and version " >= 15.0.0 < 20.1.7"
-
Affected
Papercut
Search vendor "Papercut"
Papercut Ng
Search vendor "Papercut" for product "Papercut Ng"
>= 21.0.0 < 21.2.11
Search vendor "Papercut" for product "Papercut Ng" and version " >= 21.0.0 < 21.2.11"
-
Affected
Papercut
Search vendor "Papercut"
Papercut Ng
Search vendor "Papercut" for product "Papercut Ng"
>= 22.0.0 < 22.0.9
Search vendor "Papercut" for product "Papercut Ng" and version " >= 22.0.0 < 22.0.9"
-
Affected