PaperCut MF/NG Improper Access Control Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 21/04/2023. Patch affected systems as an emergency. It is known to be used in ransomware campaigns.
| Package | Affected versions | Patched versions |
|---|---|---|
| papercut mf | ≥ 21.0.0, < 21.2.11≥ 22.0.0, < 22.0.9≥ 8.0, < 20.1.7 | 21.2.1122.0.920.1.7 |
| papercut ng | ≥ 21.0.0, < 21.2.11≥ 22.0.0, < 22.0.9≥ 8.0, < 20.1.7 | 21.2.1122.0.920.1.7 |
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.
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