#VU8155 Improper input validation in Cisco IR800 Integrated Services Router - CVE-2017-12223
Published: September 7, 2017
Vulnerability identifier: #VU8155
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12223
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IR800 Integrated Services Router
Cisco IR800 Integrated Services Router
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
vThe vulnerability allows a local unauthenticated attacker to execute arbitrary code on the target system.
The weakness exists in the ROM Monitor (ROMMON) code due to insufficient sanitization of user input. A local attacker who can access an affected router via the console can enter ROMMON mode and modify ROMMON variables to execute arbitrary code and install a malicious version of Hypervisor firmware.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists in the ROM Monitor (ROMMON) code due to insufficient sanitization of user input. A local attacker who can access an affected router via the console can enter ROMMON mode and modify ROMMON variables to execute arbitrary code and install a malicious version of Hypervisor firmware.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
The vulnerability is addressed in the following versions: 15.7(3.1.4A)OT, 15.7(0.2)M, 15.6(3.0t)M, 15.6(3)M1.