CVE-2024-4492 Tenda i21 setStaOffline formOfflineSet stack-based overflow

High 8.8 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda i21 router via the setStaOffline endpoint, potentially leading to code execution or denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-4492?

CVE-2024-4492 is a high-severity memory corruption vulnerability in Tenda i21, published on 5 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability, which was classified as critical, has been found in Tenda i21 1.0.0.14(4656). This issue affects the function formOfflineSet of the file /goform/setStaOffline. The manipulation of the argument GO/ssidIndex leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-263081 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2024-4492?

It affects 1 product.

Products include Tenda I21 Firmware.

How do I fix CVE-2024-4492?

No fix has been published for CVE-2024-4492 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-4492 being exploited?

There is no known exploitation of CVE-2024-4492 in the wild and no public exploit code.

Sources

Also known as GHSA-gxg4-ww55-59xq.

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