CVE-2021-43118

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 v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26	Exploit Third Party Advisory
https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:draytek:vigor2960_firmware:1.5.1.3:*:*:*:*:*:*:*

cpe:2.3:h:draytek:vigor2960:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:draytek:vigor3900_firmware:1.5.1.3:*:*:*:*:*:*:*

cpe:2.3:h:draytek:vigor3900:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:draytek:vigor300b_firmware:1.5.1.3:*:*:*:*:*:*:*

cpe:2.3:h:draytek:vigor300b:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:28

Type	Values Removed	Values Added
References	~~() https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26 - Exploit, Third Party Advisory~~	() https://gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26 - Exploit, Third Party Advisory

Information

Published : 2022-03-29 20:15

Updated : 2024-11-21 06:28

NVD link : CVE-2021-43118

Mitre link : CVE-2021-43118

CVE.ORG link : CVE-2021-43118

JSON object : View

Products Affected

draytek

vigor3900
vigor300b_firmware
vigor2960
vigor2960_firmware
vigor300b
vigor3900_firmware

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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9.8 /10