CVE-2023-49105ownCloud Improper Authentication Vulnerability
Aktif olarak istismar ediliyor — ownCloud Improper Authentication Vulnerability
CISA bu açığın gerçek saldırılarda kullanıldığını 27.08.2026 tarihinde doğruladı. ABD federal kurumları için düzeltme son tarihi: 30.08.2026.
Gerekli işlem: 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. https://owncloud.org/security ; https://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2023-49105
Açıklama
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.
Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.
Etkilenen ürünler ve sürümler
| Üretici | Ürün | Sürümler | |
|---|---|---|---|
| owncloud | owncloud server | 10.6.0 – < 10.13.1 |
Kaynaklar ve yamalar
- https://owncloud.org/security Product
- https://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/ Vendor Advisory
- https://hunt.io/blog/chinese-speaking-operator-philippine-nuclear-naval-contractor Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49105 US Government Resource
CPE eşleşmeleri (NVD) (1)
cpe:2.3:a:owncloud:owncloud_server:*:*:*:*:*:*:*:*≥ 10.6.0 < 10.13.1