CVE-2023-4494 Easy Chat Server Stack-based buffer overflow vulnerability
A stack-based buffer overflow in Easy Chat Server allows remote attackers to execute arbitrary code via a long username in a GET request.
- 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-2023-4494?
CVE-2023-4494 is a critical memory corruption vulnerability in EFS Software Easy Chat Server, published on 4 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Stack-based buffer overflow vulnerability in Easy Chat Server 3.1 version. An attacker could send an excessively long username string to the register.ghp file asking for the name via a GET request resulting in arbitrary code execution on the remote machine.
Weakness: CWE-119
Which versions are affected by CVE-2023-4494?
It affects 1 product.
Products include Easy Chat Server Project Easy Chat Server.
How do I fix CVE-2023-4494?
No fix has been published for CVE-2023-4494 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-2023-4494 being exploited?
There is no known exploitation of CVE-2023-4494 in the wild and no public exploit code.
Other vulnerabilities in EFS Software Easy Chat Server
Sources
Also known as GHSA-9qx7-9x6x-94r9.