CVE-2021-2018 : Security Advisory and Response

This CVE-2021-2018 article provides a detailed overview of a vulnerability found in the Advanced Networking Option component of Oracle Database Server affecting versions 18c and 19c.

Understanding CVE-2021-2018

CVE-2021-2018 is a vulnerability in the Advanced Networking Option component of Oracle Database Server that allows an unauthenticated attacker with network access via Oracle Net to compromise Advanced Networking Option.

What is CVE-2021-2018?

The vulnerability affects versions 18c and 19c of the Advanced Networking Option component of Oracle Database Server. It is considered a difficult-to-exploit vulnerability that can result in a takeover of the Advanced Networking Option. The impact includes significant consequences for confidentiality, integrity, and availability of the affected systems.

The Impact of CVE-2021-2018

The vulnerability has a CVSS 3.1 Base Score of 8.3, indicating high severity. Successful exploitation could allow a remote attacker to compromise the Advanced Networking Option, leading to severe impacts on confidentiality, integrity, and availability of the targeted systems.

Technical Details of CVE-2021-2018

CVE-2021-2018 is characterized by specific technical details related to the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows unauthenticated attackers with network access via Oracle Net to compromise the Advanced Networking Option. Successful exploitation may require human interaction but could lead to a complete takeover of the system.

Affected Systems and Versions

Supported versions affected by CVE-2021-2018 are 18c and 19c of the Advanced Networking Option component of Oracle Database Server.

Exploitation Mechanism

Successful attacks of this vulnerability require network access via Oracle Net and human interaction from a person other than the attacker. While the vulnerability is in Advanced Networking Option, it may impact additional products within the system.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-2018, certain immediate steps can be taken along with long-term security practices and ensuring timely patching and updates.

Immediate Steps to Take

Organizations can mitigate the risk by closely monitoring network traffic, restricting access to Oracle Net, and implementing proper authentication mechanisms.

Long-Term Security Practices

Implementing network segmentation, regularly updating security protocols, conducting security audits, and providing employee training on security best practices can enhance long-term security.

Patching and Updates

Oracle may release security patches or updates to address CVE-2021-2018. It is crucial for organizations to promptly apply these patches to secure their systems.