CVE-2023-27350
CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
PaperCut MF/NG
PublishedApr 20, 2023
First seenApr 20, 2023
Added to KEVApr 21, 2023
Weakness typeCWE-284Improper access control
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: May 12, 2023Update
- papercut papercut_mf20.1.7, 21.2.11, 22.0.9 or later
- papercut papercut_ng20.1.7, 21.2.11, 22.0.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| papercut papercut_mf | 8.0 ≤ v < 20.1.7, 21.0.0 ≤ v < 21.2.11, 22.0.0 ≤ v < 22.0.9 | 20.1.7, 21.2.11, 22.0.9 |
| papercut papercut_ng | 8.0 ≤ v < 20.1.7, 21.0.0 ≤ v < 21.2.11, 22.0.0 ≤ v < 22.0.9 | 20.1.7, 21.2.11, 22.0.9 |
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