PaperCut NG/MF Missing Authentication for Critical Function Vulnerability
Utnyttes aktivt (CISA KEV)
Kritisk 9.8 CVSS 3.1
Beskrivelse
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.
Beskrivelsen gjengis slik kilden har publisert den, på engelsk.
Nøkkelfakta
Publisert
2026-08-28
Sist endret
2026-09-14
Tildelt av
eb41dac7-0af8-4f84-9f6d-0272772514f4
CVSS-vektor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scoret av
nvd@nist.gov (NVD Primary)
Rettelse finnes
Ja, se referansene
Aktivt utnyttet
CISA førte denne sårbarheten inn i katalogen over kjente utnyttede
sårbarheter 2026-08-31,
med utbedringsfrist 2026-09-14 for amerikanske føderale etater.
Pålagt tiltak: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
