MSRXCVE-2023-27351
CVE-2023-27351
PaperCut NG/MF Improper Authentication Vulnerability
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVSS 3.1 · NVD
chance of exploitation in the next 30 days (EPSS; in the top 1% of all CVEs)
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.
Scores
Affected products
- papercut papercut mf: ≥ 15.0, < 20.1.7; ≥ 21.0.0, < 21.2.11; ≥ 22.0.0, < 22.0.9
- papercut papercut ng: ≥ 15.0, < 20.1.7; ≥ 21.0.0, < 21.2.11; ≥ 22.0.0, < 22.0.9
Weakness: CWE-287
3 references (advisories, patches, write-ups)
- https://www.papercut.com/kb/Main/PO-1216-and-PO-1219 · Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-23-232/ · Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27351 · US Government Resource
Sources: NVD, CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.