CVE-2017-12329 Command injection in Cisco FXOS and NX-OS

Medium 6.3 Published Updated

An authenticated local attacker can inject commands into the CLI to execute arbitrary code at their privilege level on Cisco network devices.

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-2017-12329?

CVE-2017-12329 is a medium-severity command injection vulnerability in Cisco Firepower Extensible Operating System, published on 30 Nov 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 CLI of Cisco Firepower Extensible Operating System (FXOS) and NX-OS System Software could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of command arguments to the CLI parser. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command. An exploit could allow the attacker to execute arbitrary commands at the user's privilege level. On products that support multiple virtual device contexts (VDCs), this vulnerability could allow the attacker to execute commands at the user's privilege level outside the user's environment. This vulnerability affects the following products running Cisco FXOS or NX-OS System Software: Firepower 4100 Series Next-Generation Firewall, Firepower 9300 Security Appliance, Multilayer Director Switches, Nexus 1000V Series Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, Unified Computing System Manager. Cisco Bug IDs: CSCve51700, CSCve93833, CSCve93860, CSCve93863, CSCve93864, CSCve93880.

Weakness: CWE-77

Which versions are affected by CVE-2017-12329?

It affects 3 products.

Products include Cisco Firepower Extensible Operating System, Cisco Nx-Os, Cisco Unified Computing System.

How do I fix CVE-2017-12329?

No fix has been published for CVE-2017-12329 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-2017-12329 being exploited?

There is no known exploitation of CVE-2017-12329 in the wild and no public exploit code.

All Cisco Firepower Extensible Operating System vulnerabilities

Sources

Also known as GHSA-hcpp-rjwp-9wpx.

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