D-Link DIR-823G up to 1.02B03 HNAP API /HNAP1 os command injection

Summaryinfo

A vulnerability classified as critical was found in D-Link DIR-823G up to 1.02B03. Affected is an unknown function of the file /HNAP1 of the component HNAP API. Such manipulation leads to os command injection. This vulnerability is uniquely identified as CVE-2019-7298. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in D-Link DIR-823G up to 1.02B03 (Router Operating System). It has been rated as critical. Affected by this issue is an unknown function of the file /HNAP1 of the component HNAP API. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on D-Link DIR-823G devices with firmware through 1.02B03. A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted /HNAP1 request. This occurs when any HNAP API function triggers a call to the system function with untrusted input from the request body, such as a body of ' /bin/telnetd' for the GetDeviceSettingsset API function. Consequently, an attacker can execute any command remotely when they control this input.

The bug was discovered 02/01/2019. The weakness was disclosed 02/01/2019 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2019-7298 since 02/01/2019. The attack may be launched remotely. No form of authentication is required for exploitation. 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 07/04/2023). 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-823G

Version

• 1.02B03

License

• commercial

Website

• Vendor: https://www.dlink.com/

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