CVE-2020-14933 : Security Advisory and Response

SquirrelMail 1.4.22's compose.php vulnerability allows PHP object injection via the $attachments value from an HTTP POST request, despite vendor disputes.

Understanding CVE-2020-14933

This CVE involves a disputed vulnerability in SquirrelMail 1.4.22 that could potentially lead to PHP object injection.

What is CVE-2020-14933?

The vulnerability in compose.php of SquirrelMail 1.4.22 allows the unserialize function to be called on the $attachments value, sourced from an HTTP POST request.

The Impact of CVE-2020-14933

The impact of this CVE could result in PHP object injection, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2020-14933

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from the unserialize function being called on user-controlled data, $attachments, without proper validation.

Affected Systems and Versions

Product: SquirrelMail 1.4.22
Vendor: N/A
Version: N/A

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious HTTP POST request containing specially crafted data to trigger the unserialize function.

Mitigation and Prevention

Protecting systems from CVE-2020-14933 requires immediate actions and long-term security practices.

Immediate Steps to Take

Monitor vendor updates and patches for any resolution to this vulnerability.
Implement strict input validation to prevent malicious data injection.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security audits and penetration testing to identify and mitigate potential risks.

Patching and Updates

Stay informed about any official patches or updates released by the vendor to address the vulnerability.