Command Injection in EX200 - CVE-2021-43711
Published: March 14, 2022
Vulnerability identifier: #VU61282
CSH Severity: High
CVSS v4.0: 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/E:P/U:Amber
CVE-ID: CVE-2021-43711
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: TOTOLINK
Affected software:
EX200
EX200
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the downloadFlile.cgi binary file. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-43711
Install updates from vendor's website.