CVE-2021-43118 Information

Description

A Remote Command Injection vulnerability exists in DrayTek Vigor 2960 1.5.1.3 DrayTek Vigor 3900 1.5.1.3 and DrayTek Vigor 300B 1.5.1.3 via a crafted HTTP message containing malformed QUERY STRING in mainfunction.cgi which could let a remote malicious user execute arbitrary code.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8