Authentication bypass in ownCloud WebDAV API
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-49105 |
| CWE-ID | CWE-287 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
ownCloud Server Web applications / Modules and components for CMS |
| Vendor | ownCloud |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Improper Authentication
EUVDB-ID: #VU83563
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2023-49105
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in WebDAV API. A remote attacker can bypass authentication process using Pre-Signed URLs and compromise the affected system.
Install updates from vendor's website.
Vulnerable software versionsownCloud Server: 10.6.0 - 10.13.0
External linkshttp://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
