Wavlink AC3000 M33A8.V5030.210505 nas.cgi add_dir adddir_name injection

Summaryinfo

A vulnerability was found in Wavlink AC3000 M33A8.V5030.210505. It has been declared as critical. The impacted element is the function add_dir of the file nas.cgi. Such manipulation of the argument adddir_name leads to injection. This vulnerability is traded as CVE-2024-39785. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Wavlink AC3000 M33A8.V5030.210505. Affected by this issue is the function add_dir of the file nas.cgi. The manipulation of the argument adddir_name with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Multiple command execution vulnerabilities exist in the nas.cgi add_dir() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A command injection vulnerability exists in the adddir_name POST parameter.

The advisory is shared for download at talosintelligence.com. This vulnerability is handled as CVE-2024-39785 since 06/28/2024. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are needed for exploitation. 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 08/22/2025). The MITRE ATT&CK project declares the attack technique as T1055.

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

• Wavlink

Name

• AC3000

Version

• M33A8.V5030.210505

License

• commercial

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CPE 2.2info

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