SB2017090713 - Arbitrary code execution in Cisco IR800 Integrated Services Router
Published: September 7, 2017
Security Bulletin ID
SB2017090713
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2017-12223)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
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.
Remediation
Install update from vendor's website.