OS Command Injection in DrayTek Corp. products - CVE-2020-15415
Published: February 20, 2023 / Updated: September 30, 2024
Vulnerability identifier: #VU72386
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:A/U:Amber
CVE-ID: CVE-2020-15415
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: DrayTek Corp.
Affected software:
Vigor 2960
Vigor 3900
Vigor 300B
Vigor 2960
Vigor 3900
Vigor 300B
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation within the "cgi-bin/mainfunction.cgi/cvmcfgupload" script. A remote unauthenticated attacker can send specially crafted HTTP request to the device 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-2020-15415
Install updates from vendor's website.