CVE-2017-10155 : What You Need to Know

An issue has been discovered in the MySQL Server component of Oracle MySQL, affecting versions 5.6.37 and earlier, as well as 5.7.19 and earlier. The vulnerability lies in the Server's Pluggable Auth feature, allowing unauthenticated attackers with network access to compromise the MySQL Server.

Understanding CVE-2017-10155

This CVE identifies a vulnerability in Oracle MySQL Server that can lead to a denial-of-service (DOS) situation.

What is CVE-2017-10155?

The vulnerability in MySQL Server allows attackers to exploit the Pluggable Auth feature, compromising the server without authentication. Successful exploitation can result in unauthorized actions causing the server to hang or crash, impacting availability.

The Impact of CVE-2017-10155

CVSS 3.0 Base Score: 7.5 (Availability impacts)
Attack Vector: Network (AV:N)
Attack Complexity: Low (AC:L)
Privileges Required: None (PR:N)
User Interaction: None (UI:N)
Scope: Unchanged (S:U)
Confidentiality: None (C:N)
Integrity: None (I:N)
Availability: High (A:H)

Technical Details of CVE-2017-10155

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in MySQL Server's Pluggable Auth feature allows unauthenticated attackers with network access to compromise the server, potentially leading to a denial-of-service situation.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Affected Versions: 5.6.37 and earlier, 5.7.19 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability through various protocols, compromising the MySQL Server without authentication.

Mitigation and Prevention

Protecting systems from CVE-2017-10155 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor patches and updates promptly
Implement network security measures to restrict unauthorized access
Monitor server logs for suspicious activities

Long-Term Security Practices

Regularly update and patch MySQL Server
Conduct security assessments and penetration testing
Educate users on secure authentication practices

Patching and Updates

Oracle and other vendors may release patches to address this vulnerability
Regularly check for updates and apply them to secure the MySQL Server