CVE-2023-27350: PaperCut MF/NG Improper Access Control Vulnerability

CVE-2023-27350 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2023-04-21

PaperCut MF and NG contain an improper access control vulnerability in the SetupCompleted class. Remote, unauthenticated attackers can bypass authentication to execute arbitrary code with SYSTEM privileges.

Technologies: PaperCut Mf, PaperCut Ng. Vendors: PaperCut.

Quick answers

Is CVE-2023-27350 exploited in the wild?
Yes. CVE-2023-27350 is known to be exploited in the wild, first recorded on 21 April 2023. Treat it as urgent.
How severe is CVE-2023-27350?
Critical severity, with a CVSS score of 9.8, published 21 April 2023.
Which products and versions are affected?
PaperCut PaperCut MF 8.0.0 to 20.1.6, 21.0.0 to 21.2.10, 22.0.0 to 22.0.8; PaperCut PaperCut NG 8.0.0 to 20.1.6, 21.0.0 to 21.2.10, 22.0.0 to 22.0.8.
Is there a fix for CVE-2023-27350?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-27350 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2023-27350?
Check whether you run PaperCut Mf, PaperCut MF/NG or PaperCut Ng. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • PaperCut PaperCut MF 8.0.0 to 20.1.6, 21.0.0 to 21.2.10, 22.0.0 to 22.0.8
  • PaperCut PaperCut NG 8.0.0 to 20.1.6, 21.0.0 to 21.2.10, 22.0.0 to 22.0.8

Timeline

  • 2023-04-21: disclosed
  • 2023-04-21: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2023-04-21: advisory

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