Permissions, Privileges, and Access Controls in ownCloud Server - CVE-2021-35946
Published: August 4, 2021
Vulnerability identifier: #VU55561
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-35946
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ownCloud
Affected software:
ownCloud Server
ownCloud Server
Detailed vulnerability description
The vulnerability allows a remote authenticated attacker to escalate privileges on the system.
The vulnerability exists due to the federated share recipient can increase permissions, which leads to security restrictions bypass and privilege escalation.
How to mitigate CVE-2021-35946
Install updates from vendor's website.