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CVE-2025-50069: Critical Java VM Vulnerability in Oracle Database Server

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Overview

The vulnerability CVE-2025-50069 is a serious threat that affects the Java Virtual Machine (JVM) component of the Oracle Database Server. This vulnerability exposes certain versions of the Oracle Database Server to potential system compromise or data leakage by low privileged attackers. The severity and widespread use of the affected software make this vulnerability a significant concern for businesses and organizations alike.

Vulnerability Summary

CVE ID: CVE-2025-50069
Severity: Critical (CVSS 3.1 Base Score 7.7)
Attack Vector: Network (Oracle Net)
Privileges Required: Low (Create Session, Create Procedure)
User Interaction: None
Impact: Unauthorized access to critical data or complete access to all Java VM accessible data

Affected Products

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Product | Affected Versions

Oracle Database Server (Java VM Component) | 19.3 to 19.27, 21.3 to 21.18

How the Exploit Works

An attacker exploiting this vulnerability would leverage a flaw in the Java VM component of the Oracle Database Server. The attacker, even with low privileges (having Create Session, Create Procedure privilege), can exploit this vulnerability over a network using Oracle Net. Successful exploitation can allow the attacker to gain unauthorized access to critical data or achieve complete access to all data that the Java VM can access.

Conceptual Example Code

// Connect to the Oracle Database Server
OracleDataSource ods = new OracleDataSource();
ods.setURL("jdbc:oracle:thin:@target.oracle.server:1521:orcl");
ods.setUser("low_privileged_user");
ods.setPassword("password");
// Create a session and a malicious procedure
Connection conn = ods.getConnection();
Statement stmt = conn.createStatement();
stmt.execute("CREATE OR REPLACE PROCEDURE malicious_procedure AS BEGIN EXECUTE IMMEDIATE 'malicious_payload'; END;");
stmt.close();
conn.close();

In the above conceptual example, a low privileged user creates a malicious procedure that carries out the attack. The malicious payload would be specifically crafted to exploit the vulnerability in the Java VM, leading to unauthorized data access.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.
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