Improper input validation in Cisco IOS XE - CVE-2018-0196

 

Improper input validation in Cisco IOS XE - CVE-2018-0196

Published: March 29, 2018 / Updated: March 29, 2018


Vulnerability identifier: #VU11330
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/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-2018-0196
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco IOS XE

Detailed vulnerability description

The vulnerability allows a remote authenticated attacker to write arbitrary files to the target system.

The weakness exists in the web-based user interface (web UI) due to insufficient input validation of HTTP requests that are sent to the web UI. A remote attacker can send a malicious HTTP request to the web UI and write arbitrary files.

How to mitigate CVE-2018-0196

Update to versions 16.3.2, 16.3(1.28) or 11.3(1).

Sources