CVE-2019-19735 : What You Need to Know

MFScripts YetiShare versions 3.5.2 through 4.5.3 contain a vulnerability in the class.userpeer.php file that allows attackers to reset passwords through brute force attacks.

Understanding CVE-2019-19735

This CVE identifies a security flaw in the password reset mechanism of YetiShare, potentially leading to unauthorized password changes.

What is CVE-2019-19735?

The vulnerability in the MFScripts YetiShare versions 3.5.2 through 4.5.3 allows attackers to exploit an insecure password reset hash generation method based solely on microtime, enabling brute force attacks to guess and set new passwords within a few hours.

The Impact of CVE-2019-19735

The vulnerability poses a significant risk as attackers can potentially compromise user accounts by resetting passwords through brute force attacks, leading to unauthorized access and potential data breaches.

Technical Details of CVE-2019-19735

The technical aspects of the CVE provide insights into the vulnerability's description, affected systems, and exploitation mechanisms.

Vulnerability Description

The class.userpeer.php file in MFScripts YetiShare versions 3.5.2 through 4.5.3 utilizes an insecure method for generating password reset hashes, solely relying on microtime, which facilitates brute force attacks.

Affected Systems and Versions

Product: YetiShare
Versions: 3.5.2 through 4.5.3

Exploitation Mechanism

Attackers exploit the insecure password reset hash generation method by leveraging brute force attacks to guess and establish new passwords within a short timeframe.

Mitigation and Prevention

To address CVE-2019-19735 and enhance security measures, users and organizations should take immediate and long-term preventive actions.

Immediate Steps to Take

Update YetiShare to the latest version that includes a secure password reset mechanism.
Implement strong password policies and encourage users to set complex passwords.
Monitor user accounts for any unauthorized password changes.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments on web applications.
Educate users on password security best practices and the importance of avoiding password reuse.
Employ multi-factor authentication to add an extra layer of security.

Patching and Updates

Stay informed about security updates and patches released by MFScripts for YetiShare.
Promptly apply patches to address known vulnerabilities and enhance system security.