D-Link DIR-816 A2 1.10CNB0 Command Parameter /goform/SystemCommand byte_4836B0 command injection

Summaryinfo

A vulnerability was found in D-Link DIR-816 A2 1.10CNB0 and classified as critical. This vulnerability affects the function byte_4836B0 of the file /goform/SystemCommand of the component Command Parameter Handler. Executing a manipulation can lead to command injection. The identification of this vulnerability is CVE-2022-37129. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in D-Link DIR-816 A2 1.10CNB0 (Router Operating System). This vulnerability affects the function byte_4836B0 of the file /goform/SystemCommand of the component Command Parameter Handler. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

D-Link DIR-816 A2_v1.10CNB04.img is vulnerable to Command Injection via /goform/SystemCommand. After the user passes in the command parameter, it will be spliced into byte_4836B0 by snprintf, and finally doSystem(&byte_4836B0); will be executed, resulting in a command injection.

The weakness was shared 09/01/2022. The advisory is available at github.com. This vulnerability was named CVE-2022-37129 since 08/01/2022. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/11/2022). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-816 A2

Version

• 1.10CNB0

License

• commercial

Website

• Vendor: https://www.dlink.com/

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