Incomplete Filtering of Special Elements in File Firewall for ownCloud Server
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | N/A |
| CWE-ID | CWE-791 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
File Firewall Web applications / Modules and components for CMS |
| Vendor | ownCloud |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Incomplete Filtering of Special Elements
EUVDB-ID: #VU33681
Risk: High
CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-791 - Incomplete Filtering of Special Elements
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass the firewall.
The vulnerability exists due to the affected software does not completely filter special elements before sending it to a downstream component. A remote attacker can create a share to a folder with upload rights and upload files of a type which were disallowed by the firewall
MitigationInstall updates from vendor's website.
Vulnerable software versionsFile Firewall: 2.4.1 - 2.7.0
External linkshttp://owncloud.org/security/advisories/bypassing-file-firewall/
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.
