Improper access control in SMA 100 - CVE-2021-20034
Published: September 24, 2021 / Updated: November 25, 2021
Vulnerability identifier: #VU56853
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2021-20034
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: SonicWall
Affected software:
SMA 100
SMA 100
Detailed vulnerability description
The vulnerability allows a remote attacker to delete arbitrary files on the system.
The vulnerability exists due to improper access restrictions in SMA 100 management interface. A remote non-authenticated attacker can bypass implemented path traversal checks and delete an arbitrary file on the system, potentially resulting in a reboot to factory default settings.
How to mitigate CVE-2021-20034
Install updates from vendor's website.