CVE-2017-12243 Command injection in Cisco UCS Manager, Cisco Firepower 4100 Series NGFW, and Cisco Firepower 9300 Security Appliance
An authenticated local attacker can exploit improper input validation to execute arbitrary commands and gain root privileges on Cisco UCS and Firepower 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-2017-12243?
CVE-2017-12243 is a high-severity command injection vulnerability in Cisco UCS Manager, Cisco Firepower 4100 Series NGFW, and Cisco Firepower 9300 Security Appliance, published on 2 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 Cisco Unified Computing System (UCS) Manager, Cisco Firepower 4100 Series Next-Generation Firewall (NGFW), and Cisco Firepower 9300 Security Appliance could allow an authenticated, local attacker to obtain root shell privileges on the device, aka Command Injection. The vulnerability is due to improper validation of string input in the shell application. An attacker could exploit this vulnerability through the use of malicious commands. A successful exploit could allow the attacker to obtain root shell privileges on the device. Cisco Bug IDs: CSCvf20741, CSCvf60078.
Weakness: CWE-78
Which versions are affected by CVE-2017-12243?
It affects 3 products.
Products include Cisco Firepower 4100 Next-Generation Firewall Firmware, Cisco Firepower 9300 Security Appliance Firmware, Cisco Unified Computing System Manager Firmware.
How do I fix CVE-2017-12243?
No fix has been published for CVE-2017-12243 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-2017-12243 being exploited?
There is no known exploitation of CVE-2017-12243 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Sources
Also known as GHSA-742f-jwrq-hgqc.