#VU58623 Unintended Proxy or Intermediary in SMA 100 - CVE-2021-20042 

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Main Vulnerability Database Vulnerabilities #VU58623

#VU58623 Unintended Proxy or Intermediary in SMA 100 - CVE-2021-20042

Published: December 7, 2021


Vulnerability identifier: #VU58623
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-20042
CWE-ID: CWE-441
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SMA 100
Software vendor:
SonicWall

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to missing security checks that allow a remote non-authenticated attacker to bypass firewall rules and use undetected the appliance as intermediary proxy to access internal and external resources.


Remediation

Install updates from vendor's website.

External links