CVE-2024-4236 Tenda AX1803 SetDDNSCfg formSetSysToolDDNS stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the DDNS configuration handler to execute arbitrary code on Tenda AX1803 routers.
- 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-2024-4236?
CVE-2024-4236 is a high-severity memory corruption vulnerability in Tenda Ax1803 Firmware, published on 26 Apr 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 AX1803 1.0.0.1. This issue affects the function formSetSysToolDDNS of the file /goform/SetDDNSCfg. The manipulation of the argument serverName/ddnsUser/ddnsPwd/ddnsDomain 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 associated identifier of this vulnerability is VDB-262127. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2024-4236?
It affects 1 product.
Products include Tenda Ax1803 Firmware.
How do I fix CVE-2024-4236?
No fix has been published for CVE-2024-4236 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-2024-4236 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4236 exists.
Other vulnerabilities in Tenda Ax1803 Firmware
Sources
Also known as GHSA-pvgx-c7xr-3j3w.