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

Summaryinfo

A vulnerability marked as critical has been reported in Wavlink AC3000 M33A8.V5030.210505. Affected by this issue is the function add_dir of the file nas.cgi. This manipulation of the argument disk_part causes injection. The identification of this vulnerability is CVE-2024-39784. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Wavlink AC3000 M33A8.V5030.210505. It has been declared as critical. Affected by this vulnerability is the function add_dir of the file nas.cgi. The manipulation of the argument disk_part with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 disk_part POST parameter.

The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2024-39784 since 06/28/2024. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/22/2025). MITRE ATT&CK project uses the attack technique T1055 for this issue.

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

CPE 2.3info

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CPE 2.2info

• 🔍
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Entryinfo

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