Expected behavior violation in ownCloud server

1) Expected behavior violation

EUVDB-ID: #VU73752

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-440 - Expected Behavior Violation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the changes to the permissions of a share where propagated to public links of child resources.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ownCloud Server: 10.0 - 10.11.0

CPE2.3

• cpe:2.3:a:owncloud:owncloud_server:10.0:*:*:*:*:*:*:*
• cpe:2.3:a:owncloud:owncloud_server:10.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:owncloud:owncloud_server:10.0.1:*:*:*:*:*:*:*

External links

https://owncloud.com/security-advisories/oc-sa-2023-003/

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.