OS Command Injection in AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Router - CVE-2019-5071
Published: November 22, 2019
Vulnerability identifier: #VU22914
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-5071
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Shenzhen Tenda Technology Co.,Ltd.
Affected software:
AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Router
AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Router
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the "dns1" POST parameter in the "/goform/WanParameterSetting" resource. A local user attacker can send a specially crafted HTTP POST request and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-5071
Install updates from vendor's website.