CVE-2018-2561 Explained : Impact and Mitigation

A vulnerability in the Web Listener component of Oracle Fusion Middleware, specifically in the Oracle HTTP Server, allows attackers to compromise the server, affecting versions 11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.2.0, and 12.2.1.3.0.

Understanding CVE-2018-2561

This CVE identifies a security flaw in the Oracle HTTP Server component of Oracle Fusion Middleware.

What is CVE-2018-2561?

The vulnerability enables unauthenticated attackers with network access via HTTP to compromise the Oracle HTTP Server, potentially leading to a partial denial of service.

The Impact of CVE-2018-2561

Attackers can exploit the vulnerability to compromise the Oracle HTTP Server without authentication.
Successful exploitation may result in unauthorized partial denial of service.
The CVSS 3.0 base score for this vulnerability is 5.3, with availability impacts.

Technical Details of CVE-2018-2561

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability allows unauthenticated attackers with network access via HTTP to compromise the Oracle HTTP Server, potentially causing a partial denial of service.

Affected Systems and Versions

The following versions of the Oracle HTTP Server are affected:

11.1.1.7.0
11.1.1.9.0
12.1.3.0.0
12.2.1.2.0
12.2.1.3.0

Exploitation Mechanism

Attackers can exploit the vulnerability through network access via HTTP to compromise the Oracle HTTP Server.

Mitigation and Prevention

Protect your systems from CVE-2018-2561 with the following steps:

Immediate Steps to Take

Apply security patches provided by Oracle promptly.
Monitor Oracle's security advisories for updates and follow recommended actions.

Long-Term Security Practices

Implement network security measures to restrict unauthorized access.
Regularly update and patch software to address known vulnerabilities.

Patching and Updates

Regularly check for security updates and patches from Oracle to mitigate the vulnerability.