CVE-2019-12593 : Security Advisory and Response

IceWarp Mail Server up to version 10.4.4 is vulnerable to a local file inclusion issue that can be exploited through directory traversal in the webmail/calendar/minimizer/index.php file.

Understanding CVE-2019-12593

This CVE entry describes a security vulnerability in IceWarp Mail Server versions up to 10.4.4 that allows attackers to perform directory traversal.

What is CVE-2019-12593?

The vulnerability in the webmail/calendar/minimizer/index.php file of IceWarp Mail Server up to version 10.4.4 enables malicious actors to exploit the "style" parameter for directory traversal using "..%5c".

The Impact of CVE-2019-12593

This vulnerability could lead to unauthorized access to sensitive files and data stored on the server, potentially compromising the confidentiality and integrity of the system.

Technical Details of CVE-2019-12593

IceWarp Mail Server CVE-2019-12593 has the following technical details:

Vulnerability Description

The issue arises from improper input validation in the webmail/calendar/minimizer/index.php file, allowing attackers to include arbitrary files.

Affected Systems and Versions

IceWarp Mail Server versions up to 10.4.4

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the "style" parameter with directory traversal sequences like "..%5c" to access files outside the intended directory structure.

Mitigation and Prevention

To address CVE-2019-12593, follow these mitigation steps:

Immediate Steps to Take

Apply the vendor-supplied patches or updates to the IceWarp Mail Server.
Implement strict input validation mechanisms to prevent directory traversal attacks.

Long-Term Security Practices

Regularly monitor and audit server logs for any suspicious activities.
Conduct security assessments and penetration testing to identify and remediate vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from IceWarp to apply patches promptly and ensure the server's security.