CVE-2019-14833 : Security Advisory and Response

CVE-2019-14833 is a vulnerability found in Samba affecting versions from 4.5.0 to 4.9.15, 4.10.10, and 4.11.2. The issue arises in handling password changes or new password creation, potentially leading to weak passwords and exposing systems to dictionary attacks.

Understanding CVE-2019-14833

This section provides insights into the nature and impact of the CVE-2019-14833 vulnerability.

What is CVE-2019-14833?

The vulnerability in Samba occurs when a custom script for password complexity validation fails to adequately verify passwords containing non-ASCII characters. This oversight may result in weak passwords being assigned to Samba users, increasing the risk of dictionary attacks.

The Impact of CVE-2019-14833

The vulnerability exposes systems to the risk of dictionary attacks due to the potential assignment of weak passwords to Samba users. Attackers could exploit this weakness to compromise system security.

Technical Details of CVE-2019-14833

Explore the technical aspects of the CVE-2019-14833 vulnerability.

Vulnerability Description

The issue arises in the handling of password changes or new password creation in Samba versions 4.5.0 to 4.9.15, 4.10.10, and 4.11.2. Non-ASCII characters in passwords may not be adequately validated for complexity, leading to the assignment of weak passwords.

Affected Systems and Versions

Vendor: Samba
Product: Samba
Affected Versions: All versions starting from Samba 4.5.0 before Samba 4.9.15, 4.10.10, and 4.11.2

Exploitation Mechanism

The vulnerability can be exploited by attackers to potentially assign weak passwords to Samba users, making the system susceptible to dictionary attacks.

Mitigation and Prevention

Learn how to mitigate the CVE-2019-14833 vulnerability and prevent potential security risks.

Immediate Steps to Take

Update Samba to a patched version that addresses the password complexity validation issue.
Implement strong password policies to mitigate the risk of weak passwords.

Long-Term Security Practices

Regularly review and update password policies to enhance system security.
Conduct security training to educate users on creating and maintaining secure passwords.

Patching and Updates

Apply security patches provided by Samba to fix the password complexity validation vulnerability and enhance system security.