High · published April 20, 2023
CVSS calls it high at 7.5. It is confirmed in active exploitation. It sits in the 99.6th percentile for exploit probability.
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.
| Product | Versions | Fixed in |
|---|---|---|
| papercut/papercut_mf | ≥ 15.0, < 20.1.7 | 20.1.7 |
| papercut/papercut_mf | ≥ 21.0.0, < 21.2.11 | 21.2.11 |
| papercut/papercut_mf | ≥ 22.0.0, < 22.0.9 | 22.0.9 |
| papercut/papercut_ng | ≥ 15.0, < 20.1.7 | 20.1.7 |
| papercut/papercut_ng | ≥ 21.0.0, < 21.2.11 | 21.2.11 |
| papercut/papercut_ng | ≥ 22.0.0, < 22.0.9 | 22.0.9 |