Zyxel VMG4005-B50A up to V5.15(ABQA.2.2)C0 diagnostic host os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Zyxel VMG4005-B50A up to V5.15(ABQA.2.2)C0. This vulnerability affects the function diagnostic. Performing a manipulation of the argument host results in os command injection. This vulnerability is reported as CVE-2024-9200. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in Zyxel VMG4005-B50A up to V5.15(ABQA.2.2)C0. This affects the function diagnostic. The manipulation of the argument host with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A post-authentication command injection vulnerability in the "host" parameter of the diagnostic function in Zyxel VMG4005-B50A firmware versions through V5.15(ABQA.2.2)C0 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on a vulnerable device.

It is possible to read the advisory at zyxel.com. This vulnerability is uniquely identified as CVE-2024-9200 since 09/26/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/03/2024). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

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

• Zyxel

Name

• VMG4005-B50A

Version

• V5.15(ABQA.2.2)C0

License

• commercial

Website

• Vendor: https://www.zyxel.com/

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