CVE-2021-2397 : Vulnerability Insights and Analysis
Learn about the critical vulnerability (CVE-2021-2397) in Oracle WebLogic Server allowing unauthenticated attackers to compromise the server. Understand the impact, affected versions, and mitigation steps.
A vulnerability has been identified in the Oracle WebLogic Server product of Oracle Fusion Middleware that could allow an unauthenticated attacker to compromise the server. This article dives into the details of CVE-2021-2397 and its implications.
Understanding CVE-2021-2397
This section delves into the specifics of the CVE-2021-2397 vulnerability in Oracle WebLogic Server.
What is CVE-2021-2397?
The vulnerability in Oracle WebLogic Server allows an unauthenticated attacker to exploit the server via network access, leading to a potential takeover. Supported affected versions are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0. The CVSS 3.1 Base Score is 9.8, indicating critical impacts on confidentiality, integrity, and availability.
The Impact of CVE-2021-2397
Successful exploitation of this vulnerability can result in the complete compromise and takeover of the Oracle WebLogic Server. The severity of the impact is classified as critical due to the confidentiality, integrity, and availability implications.
Technical Details of CVE-2021-2397
This section covers the technical aspects of the CVE-2021-2397 vulnerability.
Vulnerability Description
The vulnerability allows unauthorized access to Oracle WebLogic Server through T3 and IIOP, enabling attackers to compromise the server without authentication.
Affected Systems and Versions
Oracle WebLogic Server versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0 are affected by this vulnerability, exposing them to potential exploitation.
Exploitation Mechanism
Exploitation of CVE-2021-2397 involves leveraging network access via T3 and IIOP to carry out attacks that could lead to the complete takeover of the Oracle WebLogic Server.
Mitigation and Prevention
In this section, we discuss the steps to mitigate and prevent the CVE-2021-2397 vulnerability.
Immediate Steps to Take
It is crucial to update to the latest patched versions of Oracle WebLogic Server to address the vulnerability immediately. Additionally, restrict network access to minimize the risk of exploitation.
Long-Term Security Practices
Implementing strict access controls, network segmentation, and regular security updates can enhance the long-term security posture of Oracle WebLogic Server.
Patching and Updates
Regularly apply security patches and updates provided by Oracle to safeguard against known vulnerabilities and ensure the protection of WebLogic Server.