Wavlink AC3000 M33A8.V5030.210505 login.cgi set_sys_init restart_week_value command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Wavlink AC3000 M33A8.V5030.210505. This issue affects the function set_sys_init of the file login.cgi. Performing a manipulation of the argument restart_week_value results in command injection. This vulnerability is reported as CVE-2024-39761. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as very critical has been found in Wavlink AC3000 M33A8.V5030.210505. This affects the function set_sys_init of the file login.cgi. The manipulation of the argument restart_week_value with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger these vulnerabilities.A command injection vulnerability exists within the `restart_week_value` POST parameter.

The advisory is shared at talosintelligence.com. This vulnerability is uniquely identified as CVE-2024-39761 since 06/28/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is 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 T1202 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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