DrayTek Vigor 3900 1.5.1.3 cgi-bin/mainfunction.cgi autodiscovery_clear action command injection

Summaryinfo

A vulnerability was found in DrayTek Vigor 3900 1.5.1.3 and classified as critical. This vulnerability affects the function autodiscovery_clear of the file cgi-bin/mainfunction.cgi. Executing a manipulation of the argument action can lead to command injection. This vulnerability is registered as CVE-2024-45885. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in DrayTek Vigor 3900 1.5.1.3 and classified as critical. This vulnerability affects the function autodiscovery_clear of the file cgi-bin/mainfunction.cgi. The manipulation of the argument action 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:

DrayTek Vigor3900 1.5.1.3 contains a post-authentication command injection vulnerability. This vulnerability occurs when the `action` parameter in `cgi-bin/mainfunction.cgi` is set to `autodiscovery_clear.`

The advisory is shared for download at github.com. This vulnerability was named CVE-2024-45885 since 09/11/2024. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/04/2024). 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

Type

• Router Operating System

Vendor

• DrayTek

Name

• Vigor 3900

Version

• 1.5.1.3

License

• commercial

CPE 2.3info

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CPE 2.2info

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