Permissions, Privileges, and Access Controls in ownCloud Server - CVE-2021-35946
Published: August 4, 2021
Vulnerability identifier: #VU55561
CSH Severity: Medium
CVSS v4: 6.8 [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]
CVE-ID: CVE-2021-35946
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
ownCloud Server
How to mitigate CVE-2021-35946
Install updates from vendor's website.
ownCloud Server - update to 10.8.0