CVE-2021-2054 : Exploit Details and Defense Strategies
Learn about CVE-2021-2054 affecting Oracle Database Server versions 12.2.0.1, 18c, and 19c. Understand the impact, technical details, and mitigation steps to secure your systems.
A vulnerability has been identified in the RDBMS Sharding component of Oracle Database Server. This CVE affects versions 12.2.0.1, 18c, and 19c, allowing attackers with specific privileges to compromise RDBMS Sharding.
Understanding CVE-2021-2054
This section delves into the details of the vulnerability, its impact, affected systems, and how to mitigate the risk.
What is CVE-2021-2054?
The vulnerability in the RDBMS Sharding component of Oracle Database Server impacts versions 12.2.0.1, 18c, and 19c. Attackers with high privileges through Oracle Net can exploit this vulnerability, potentially resulting in a takeover of RDBMS Sharding.
The Impact of CVE-2021-2054
The CVSS 3.1 Base Score for this vulnerability is 7.2, indicating high impacts on confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-2054
Get insights into the technical aspects of the vulnerability, including its description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability allows a high-privileged attacker to compromise RDBMS Sharding by exploiting specific privileges and network access via Oracle Net.
Affected Systems and Versions
Oracle Database Server versions 12.2.0.1, 18c, and 19c are affected by this vulnerability.
Exploitation Mechanism
To exploit this vulnerability, attackers need high privileges such as Create Any Procedure, Create Any View, and Create Any Trigger, along with network access via Oracle Net.
Mitigation and Prevention
Discover the immediate steps to take to secure your systems and long-term security practices to prevent similar vulnerabilities.
Immediate Steps to Take
Ensure restricted access to high privileges and Oracle Net, and monitor for any suspicious activities.
Long-Term Security Practices
Implement a comprehensive security policy, conduct regular security audits, and keep systems updated with the latest patches.
Patching and Updates
Stay informed about security updates from Oracle Corporation and apply patches promptly to address known vulnerabilities.