Arbitrary file upload in Apex One - CVE-2021-36741
Published: July 28, 2021
Vulnerability identifier: #VU55408
CSH Severity: Critical
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-36741
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload within the product’s management console . A remote user can upload a malicious file and execute it on the server.
Note, the vulnerability is being actively exploited in the wild.
Affected software
Apex One
Worry-Free Business Security
Worry-Free Business Security
How to mitigate CVE-2021-36741
Install updates from vendor's website.
Apex One - update to CP 9601
Worry-Free Business Security - update to 10 SP1 Patch 2329
Worry-Free Business Security - update to 10 SP1 Patch 2329