CVE-2021-43118

EUVD-2021-30067
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.
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 96%
Affected Products (NVD)
VendorProductVersion
draytekvigor2960_firmware
1.5.1.3
draytekvigor3900_firmware
1.5.1.3
draytekvigor300b_firmware
1.5.1.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26
https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26