by Kastro
Paper/Archive/CVE-2023-49105

CVE-2023-49105

ownCloud ownCloud — ownCloud Improper Authentication Vulnerability

KEV · due 30 AugEPSS 43%public exploitSSVC actCVSS 9.8
critical.is priorityof 100
99
CVSS 9.8 (CNA)9.8 / 10 × 3029.4In CISA KEV+3030.0EPSS percentile 98.7.987 × 2019.7Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

mitre (CNA)9.8CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N
CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

refowncloud.org/securityrefowncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urlswriteuphunt.io/blog/chinese-speaking-operator-philippine-nuclear-naval-contractorrefcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49105kevcisa.gov/known-exploited-vulnerabilities-catalog