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CVE-2023-27350

CRITICALCISA KEV

9.8

Description

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 SetupCompleted class. The issue results from improper access control. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-18987.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/20/2023

Last Modified10/27/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorPaperCut

ProductMF/NG

Vulnerability NamePaperCut MF/NG Improper Access Control Vulnerability

KEV Date Added2023-04-21

Remediation Due Date2023-05-12

Ransomware UseKnown

Affected Products

papercut:papercut_mfpapercut:papercut_ng

Weaknesses (CWE)

CWE-284

References

http://packetstormsecurity.com/files/171982/PaperCut-MF-NG-Authentication-Bypass-Remote-Code-Execution.html(zdi-disclosures@trendmicro.com)

http://packetstormsecurity.com/files/172022/PaperCut-NG-MG-22.0.4-Authentication-Bypass.html(zdi-disclosures@trendmicro.com)

http://packetstormsecurity.com/files/172512/PaperCut-NG-MG-22.0.4-Remote-Code-Execution.html(zdi-disclosures@trendmicro.com)

http://packetstormsecurity.com/files/172780/PaperCut-PaperCutNG-Authentication-Bypass.html(zdi-disclosures@trendmicro.com)

https://news.sophos.com/en-us/2023/04/27/increased-exploitation-of-papercut-drawing-blood-around-the-internet/(zdi-disclosures@trendmicro.com)

https://www.papercut.com/kb/Main/PO-1216-and-PO-1219(zdi-disclosures@trendmicro.com)

https://www.zerodayinitiative.com/advisories/ZDI-23-233/(zdi-disclosures@trendmicro.com)

http://packetstormsecurity.com/files/171982/PaperCut-MF-NG-Authentication-Bypass-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/172022/PaperCut-NG-MG-22.0.4-Authentication-Bypass.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/172512/PaperCut-NG-MG-22.0.4-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/172780/PaperCut-PaperCutNG-Authentication-Bypass.html(af854a3a-2127-422b-91ae-364da2661108)

https://news.sophos.com/en-us/2023/04/27/increased-exploitation-of-papercut-drawing-blood-around-the-internet/(af854a3a-2127-422b-91ae-364da2661108)

https://www.papercut.com/kb/Main/PO-1216-and-PO-1219(af854a3a-2127-422b-91ae-364da2661108)

https://www.zerodayinitiative.com/advisories/ZDI-23-233/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27350(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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