CVE-2024-34198 Memory corruption in n/a

Critical 9.8 Published 28 Aug 2024 Updated 29 Aug 2024

Attackers can trigger a stack overflow via the wlan_ssid field in the formWlEncrypt CGI handler, enabling arbitrary command execution or denial of service on TOTOLINK AC1200 routers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-34198?

CVE-2024-34198 is a critical memory corruption vulnerability in n/a, published on 28 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TOTOLINK AC1200 Wireless Router A3002RU V2.1.1-B20230720.1011 is vulnerable to Buffer Overflow. The formWlEncrypt CGI handler in the boa program fails to limit the length of the wlan_ssid field from user input. This allows attackers to craft malicious HTTP requests by supplying an excessively long value for the wlan_ssid field, leading to a stack overflow. This can be further exploited to execute arbitrary commands or launch denial-of-service attacks.

Weakness: CWE-120

Which versions are affected by CVE-2024-34198?

It affects 1 product.

Products include Totolink A3002ru Firmware.

How do I fix CVE-2024-34198?

No fix has been published for CVE-2024-34198 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-2024-34198 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-34198 exists.

Sources

Also known as GHSA-4j37-x4vf-9p6c.