Improper input validation in Cisco ASR 920 Series Routers - CVE-2017-6795

 

Improper input validation in Cisco ASR 920 Series Routers - CVE-2017-6795

Published: September 7, 2017


Vulnerability identifier: #VU8152
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-6795
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco ASR 920 Series Routers

Detailed vulnerability description

The vulnerability allows a local attacker to overwrite arbitrary files on the affected device.

The weakness exists in the USB-modem code due to improper input validation of the platform usb modem command in the CLI. A local attacker can modify the platform usb modem command in the CLI to overwrite arbitrary files.

How to mitigate CVE-2017-6795

Update to version 16.7(0.94).

Sources