CVE-2023-49105

CRITICAL9.8Veröffentlicht am 21. November 2023

An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.

Aktiv ausgenutzt

  • Seit dem 27. Aug. 2026 im CISA-Katalog ausgenutzter Schwachstellen
  • US-Bundesbehörden müssen sie bis zum 30. Aug. 2026 beheben (BOD 22-01)

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.

Quelle: CISA KEV

CVSS-Score9.8 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Schwachstellentyp (CWE)CWE-287, CWE-287
Herstellerowncloud

Betroffene Produkte

HerstellerProdottoVersioni
owncloudowncloud server< 10.13.1

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This product uses the NVD API but is not endorsed or certified by the NVD.

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