OS Command Injection in DIR-823G - CVE-2019-7298
Published: February 4, 2019 / Updated: February 6, 2019
Vulnerability identifier: #VU17368
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-7298
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to insufficient validation of user-supplied input. A remote unauthenticated attacker can execute arbitrary OS commands via a specially crafted /HNAP1 request when any HNAP API function triggers a call to the system function with untrusted input from the request body, such as a body of ' /bin/telnetd' for the GetDeviceSettingsset API function.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
DIR-823G
How to mitigate CVE-2019-7298
Install updates from vendor's website.