CVE-2020-3387 Cisco SD-WAN vManage Software Remote Code Execution Vulnerability

High 7.5 Published 16 Jul 2020 Updated 13 Nov 2024

Authenticated attackers can execute arbitrary code with root privileges on Cisco SD-WAN vManage due to insufficient input sanitization.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-3387?

CVE-2020-3387 is a high-severity command injection vulnerability in Cisco SD-WAN vManage, published on 16 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to execute code with root privileges on an affected system. The vulnerability is due to insufficient input sanitization during user authentication processing. An attacker could exploit this vulnerability by sending a crafted response to the Cisco SD-WAN vManage Software. A successful exploit could allow the attacker to access the software and execute commands they should not be authorized to execute.

Weakness: CWE-20

Which versions are affected by CVE-2020-3387?

It affects 1 product.

Products include Cisco Sd-Wan Firmware.

How do I fix CVE-2020-3387?

No fix has been published for CVE-2020-3387 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2020-3387 being exploited?

There is no known exploitation of CVE-2020-3387 in the wild and no public exploit code.

Sources

Also known as GHSA-858r-5xm4-gf36.