CVE-2023-4491 — CRITICAL (9.8)

Vulnerability Description

Buffer overflow vulnerability in Easy Address Book Web Server 1.6 version. The exploitation of this vulnerability could allow an attacker to send a very long username string to /searchbook.ghp, asking for the name via a POST 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 Address Book Web Server Project	Easy Address Book Web Server	1.6

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-2023-4491?

CVE-2023-4491 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Buffer overflow vulnerability in Easy Address Book Web Server 1.6 version. The exploitation of this vulnerability could allow an attacker to send a very long username string to /searchbook.ghp, asking...

How severe is CVE-2023-4491?

CVE-2023-4491 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-2023-4491?

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