CVE-2017-6650 Command injection in Cisco Nexus Series Switches
Authenticated local attackers can inject commands into the Telnet CLI to read or write arbitrary files on Cisco Nexus switches.
- 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-2017-6650?
CVE-2017-6650 is a high-severity command injection vulnerability in Cisco Nx-Os, published on 22 May 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Telnet CLI command of Cisco NX-OS System Software 7.1 through 7.3 running on Cisco Nexus Series Switches could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of command arguments. An attacker could exploit this vulnerability by injecting crafted command arguments into the Telnet CLI command. An exploit could allow the attacker to read or write arbitrary files at the user's privilege level outside of the user's path. Cisco Bug IDs: CSCvb86771.
Which versions are affected by CVE-2017-6650?
It affects 1 product.
Products include Cisco Nx-Os.
How do I fix CVE-2017-6650?
No fix has been published for CVE-2017-6650 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-2017-6650 being exploited?
There is no known exploitation of CVE-2017-6650 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-qmjg-x3m2-w2rj.