CVE-2024-8408 Linksys WRT54G POST Parameter apply.cgi validate_services_port stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the WRT54G router's apply.cgi handler to execute arbitrary code.
- 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-2024-8408?
CVE-2024-8408 is a medium-severity memory corruption vulnerability in Linksys WRT54G, published on 4 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Linksys WRT54G 4.21.5. It has been rated as critical. Affected by this issue is the function validate_services_port of the file /apply.cgi of the component POST Parameter Handler. The manipulation of the argument services_array leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2024-8408?
It affects 1 product.
Products include Linksys Wrt54g Firmware.
How do I fix CVE-2024-8408?
No fix has been published for CVE-2024-8408 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-2024-8408 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-8408 exists.
Other vulnerabilities in Linksys WRT54G
Sources
Also known as GHSA-wv2q-3c9c-q6v7.