CVE-2018-3070 : What You Need to Know

A vulnerability has been identified in the Oracle MySQL Server, specifically in the Client mysqldump subcomponent. The affected versions include 5.5.60 and earlier, 5.6.40 and earlier, and 5.7.22 and earlier. This vulnerability can easily be exploited by a low privileged attacker who has network access through multiple protocols, leading to a compromise of the MySQL Server. If successfully exploited, this vulnerability can result in the unauthorized ability to cause a hang or repeatedly crash the MySQL Server, causing a complete denial of service. The CVSS 3.0 Base Score for this vulnerability is 6.5, with the main impact being on system availability. The CVSS Vector for this vulnerability is (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Understanding CVE-2018-3070

This section provides insights into the nature and impact of CVE-2018-3070.

What is CVE-2018-3070?

CVE-2018-3070 is a vulnerability found in the Oracle MySQL Server, specifically in the Client mysqldump subcomponent. It allows a low privileged attacker with network access to compromise the MySQL Server, potentially leading to a denial of service.

The Impact of CVE-2018-3070

The vulnerability in CVE-2018-3070 can have the following impacts:

Unauthorized ability to cause a hang or crash the MySQL Server
Complete denial of service (DoS) attack
Mainly affects system availability with a CVSS 3.0 Base Score of 6.5

Technical Details of CVE-2018-3070

This section delves into the technical aspects of CVE-2018-3070.

Vulnerability Description

The vulnerability in the Client mysqldump subcomponent of Oracle MySQL Server allows attackers to compromise the server through network access, potentially leading to a denial of service.

Affected Systems and Versions

MySQL Server 5.5.60 and prior
MySQL Server 5.6.40 and prior
MySQL Server 5.7.22 and prior

Exploitation Mechanism

The vulnerability can be exploited by a low privileged attacker with network access through multiple protocols, enabling them to compromise the MySQL Server and cause a denial of service.

Mitigation and Prevention

This section outlines steps to mitigate and prevent exploitation of CVE-2018-3070.

Immediate Steps to Take

Apply patches provided by Oracle Corporation promptly
Restrict network access to the MySQL Server
Monitor for any unauthorized access or unusual server behavior

Long-Term Security Practices

Regularly update and patch the MySQL Server
Implement network segmentation to limit access to critical servers
Conduct security training for staff to recognize and respond to potential threats

Patching and Updates

Stay informed about security advisories from Oracle Corporation
Implement a robust patch management process to apply updates promptly