CVE-2020-3176 Cisco Remote PHY Device Software Command Injection Vulnerability
Authenticated local attackers can execute arbitrary commands as root on Cisco Remote PHY devices due to improper input sanitization.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3176?
CVE-2020-3176 is a medium-severity command injection vulnerability in Cisco Remote PHY, published on 4 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in Cisco Remote PHY Device Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exists because the affected software does not properly sanitize user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying certain CLI commands with crafted arguments. A successful exploit could allow the attacker to run arbitrary commands as the root user, which could result in a complete system compromise.
Which versions are affected by CVE-2020-3176?
It affects 3 products.
Products include Cisco Remote Phy 120 Firmware, Cisco Remote Phy 220 Firmware, Cisco Remote Phy Shelf 7200 Firmware.
How do I fix CVE-2020-3176?
No fix has been published for CVE-2020-3176 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-2020-3176 being exploited?
There is no known exploitation of CVE-2020-3176 in the wild and no public exploit code.
Sources
Also known as GHSA-4m8j-77pp-fvjx.