Wavlink AC3000 M33A8.V5030.210505 adm.cgi sch_reboot restart_hour command injection

Summaryinfo

A vulnerability classified as critical has been found in Wavlink AC3000 M33A8.V5030.210505. This affects the function sch_reboot of the file adm.cgi. This manipulation of the argument restart_hour causes command injection. This vulnerability is registered as CVE-2024-39781. Remote exploitation of the attack is possible. No exploit is 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 sch_reboot of the file adm.cgi. The manipulation of the argument restart_hour 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. The summary by CVE is:

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

It is possible to read the advisory at talosintelligence.com. This vulnerability is known as CVE-2024-39781 since 06/28/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/22/2025). 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

• Wavlink

Name

• AC3000

Version

• M33A8.V5030.210505

License

• commercial

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CPE 2.2info

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