CVE-2018-2780 : What You Need to Know
Learn about CVE-2018-2780, a vulnerability in the MySQL Server component of Oracle MySQL, allowing unauthorized access and potential denial of service. Find mitigation steps and prevention measures here.
A vulnerability in the MySQL Server component of Oracle MySQL has been identified, affecting versions 5.7.21 and earlier. This vulnerability could be exploited by a low privileged attacker with network access, potentially leading to a denial of service situation.
Understanding CVE-2018-2780
This CVE pertains to a vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Optimizer subcomponent.
What is CVE-2018-2780?
The vulnerability allows a low privileged attacker with network access to compromise the MySQL Server, potentially causing a denial of service by hanging or crashing the server.
The Impact of CVE-2018-2780
If successfully exploited, this vulnerability can lead to unauthorized actions that may cause the server to hang or crash, resulting in a denial of service (DOS) situation. The CVSS 3.0 Base Score rates the impact on availability at 6.5.
Technical Details of CVE-2018-2780
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in the MySQL Server component of Oracle MySQL allows a low privileged attacker 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
- Versions Affected: 5.7.21 and prior
Exploitation Mechanism
The vulnerability can be easily exploited by a low privileged attacker who has network access through multiple protocols, potentially compromising the MySQL Server.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Apply security patches provided by Oracle Corporation promptly.
- Restrict network access to the MySQL Server to trusted entities only.
- Monitor server logs for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch the MySQL Server to address any security vulnerabilities.
- Implement network segmentation to limit the exposure of critical servers.
- Conduct regular security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
Ensure that the MySQL Server is updated with the latest security patches and updates to mitigate the risk of exploitation.