CVE-2023-4494 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Easy Chat Server Project	Easy Chat Server	3.1

Related Weaknesses (CWE)

CWE-119

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-Third Party Advisory
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-Third Party Advisory

FAQ

What is CVE-2023-4494?

CVE-2023-4494 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 res...

How severe is CVE-2023-4494?

CVE-2023-4494 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-4494?

Check the references section above for vendor advisories and patch information. Affected products include: Easy Chat Server Project Easy Chat Server.