D-Link DSL6740C SSH/Telnet os command injection

Summaryinfo

A vulnerability was found in D-Link DSL6740C. It has been declared as critical. Affected by this issue is some unknown functionality of the component SSH/Telnet. Such manipulation leads to os command injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is documented as CVE-2024-11063. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in D-Link DSL6740C (version now known) and classified as critical. Affected by this issue is some unknown processing of the component SSH/Telnet. 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:

The D-Link DSL6740C modem has an OS Command Injection vulnerability, allowing remote attackers with administrator privileges to inject and execute arbitrary system commands through a specific functionality provided by SSH and Telnet.

The advisory is shared for download at twcert.org.tw. This vulnerability is handled as CVE-2024-11063 since 11/11/2024. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/11/2024). The MITRE ATT&CK project declares the attack technique as T1202.

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

Vendor

• D-Link

Name

• DSL6740C

License

• commercial

Support

• end of life

Website

• Vendor: https://www.dlink.com/

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