CVE-2019-19805 : What You Need to Know

MFScripts YetiShare versions 3.5.2 through 4.5.3 contain a vulnerability that allows malicious actors to enumerate user accounts by exploiting response time differences.

Understanding CVE-2019-19805

What is CVE-2019-19805?

The _account_forgot_password.ajax.php file in MFScripts YetiShare versions 3.5.2 through 4.5.3 exhibits response time discrepancies based on the presence of an associated email address, enabling attackers to guess and enumerate user accounts.

The Impact of CVE-2019-19805

This vulnerability can be exploited by malicious actors to systematically guess and enumerate user accounts by trying different email addresses.

Technical Details of CVE-2019-19805

Vulnerability Description

_account_forgot_password.ajax.php in MFScripts YetiShare 3.5.2 through 4.5.3 takes varying amounts of time to return based on the presence of an email address, allowing attackers to enumerate accounts by guessing email addresses.

Affected Systems and Versions

Product: MFScripts YetiShare
Versions: 3.5.2 through 4.5.3

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to systematically guess and enumerate user accounts by trying different email addresses.

Mitigation and Prevention

Immediate Steps to Take

Implement security controls to limit the number of failed login attempts.
Regularly monitor and analyze login attempts for unusual patterns.
Consider implementing multi-factor authentication to enhance security.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Keep software and systems up to date with the latest security patches.

Patching and Updates

Ensure that MFScripts YetiShare is updated to a version that addresses this vulnerability.