CVE-2023-27351

PaperCut NG SecurityRequestFilter Authentication Bypass Vulnerability

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*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

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
2024-11-25 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-23-232	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.papercut.com/kb/Main/PO-1216-and-PO-1219	2023-05-02

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