CVE-2021-20037 Privilege escalation in SonicWall Global VPN Client

High 7.8 Published Updated

Incorrect default file permissions in the SonicWall Global VPN Client installer allow local attackers to escalate privileges and execute arbitrary code.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-20037?

CVE-2021-20037 is a high-severity vulnerability in SonicWall Global VPN Client, published on 21 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

SonicWall Global VPN Client 4.10.5 installer (32-bit and 64-bit) incorrect default file permission vulnerability leads to privilege escalation which potentially allows command execution in the host operating system. This vulnerability impacts GVC 4.10.5 installer and earlier.

Weakness: CWE-276

Which versions are affected by CVE-2021-20037?

It affects 1 product.

Products include Sonicwall Global Vpn Client.

How do I fix CVE-2021-20037?

No fix has been published for CVE-2021-20037 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-20037 being exploited?

There is no known exploitation of CVE-2021-20037 in the wild and no public exploit code.

Sources

Also known as GHSA-m3j4-rxwq-wxv7.

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