CVE-2017-12223 Code injection in Cisco IR800 Integrated Services Router
An unauthenticated local attacker can execute arbitrary code and install malicious firmware by modifying ROMMON variables on Cisco IR800 routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-12223?
CVE-2017-12223 is a medium-severity code injection vulnerability in Cisco IR800 Integrated Services Router, published on 7 Sep 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 ROM Monitor (ROMMON) code of Cisco IR800 Integrated Services Router Software could allow an unauthenticated, local attacker to boot an unsigned Hypervisor on an affected device and compromise the integrity of the system. The vulnerability is due to insufficient sanitization of user input. An attacker who can access an affected router via the console could exploit this vulnerability by entering ROMMON mode and modifying ROMMON variables. A successful exploit could allow the attacker to execute arbitrary code and install a malicious version of Hypervisor firmware on an affected device. Cisco Bug IDs: CSCvb44027.
Weakness: CWE-20
Which versions are affected by CVE-2017-12223?
It affects 1 product.
Products include Cisco Ir800 Integrated Services Router Firmware.
How do I fix CVE-2017-12223?
No fix has been published for CVE-2017-12223 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2017-12223 being exploited?
There is no known exploitation of CVE-2017-12223 in the wild and no public exploit code.
Sources
Also known as GHSA-v3wp-v7v9-ww68.