CVE-2025-50059: Oracle JRE Auth Bypass Vulnerability

CVE-2025-50059 Overview

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected include Oracle Java SE: 8u451-perf, 11.0.27, 17.0.15, 21.0.7, 24.0.1; Oracle GraalVM for JDK: 17.0.15, 21.0.7, and 24.0.1; Oracle GraalVM Enterprise Edition: 21.3.14. A successful exploit could allow unauthorized access to critical data or complete access to all accessible data.

Critical Impact

Attackers can gain unauthorized access to critical data, bypassing typical security controls, with potentially broad impact across Oracle Java SE and GraalVM environments.

Affected Products

• Oracle Java SE: 8u451-perf, 11.0.27, 17.0.15, 21.0.7, 24.0.1
• Oracle GraalVM for JDK: 17.0.15, 21.0.7, 24.0.1
• Oracle GraalVM Enterprise Edition: 21.3.14

Discovery Timeline

• Not Available - Vulnerability discovered by Not Available
• Not Available - Responsible disclosure to Oracle
• Not Available - CVE CVE-2025-50059 assigned
• Not Available - Oracle releases security patch
• 2025-07-15 - CVE CVE-2025-50059 published to NVD
• 2025-11-03 - Last updated in NVD database

Technical Details for CVE-2025-50059

Vulnerability Analysis

The vulnerability lies within the networking component of Oracle's products, where an unauthenticated attacker can exploit it via multiple protocols. The impact is primarily on data confidentiality due to unauthorized access and information exposure.

Root Cause

Inadequate input validation within the networking stack allows remote exploitation, leading to unauthorized data access.

Attack Vector

This vulnerability can be exploited remotely through network access without authentication, making it particularly dangerous due to the low complexity of the attack.

// Example code that demonstrates a typical networking issue in Java
try {
    Socket socket = new Socket("example.com", 80);
    InputStream input = socket.getInputStream();
    int data = input.read();
    // Handle data...
    socket.close();
} catch (IOException e) {
    e.printStackTrace();
}

Detection Methods for CVE-2025-50059

Indicators of Compromise

• Unusual network traffic to Oracle Java SE or GraalVM components
• Unexpected data exposure or loss
• Unauthorized data access logs

Detection Strategies

Set up network monitoring to detect unusual traffic patterns. Use Security Information and Event Management (SIEM) solutions to correlate logs from Java components for signs of unauthorized access.

Monitoring Recommendations

Employ deep packet inspection and anomaly detection systems to monitor for any suspicious activities around Java SE network interactions.

How to Mitigate CVE-2025-50059

Immediate Actions Required

• Apply the latest security patches from Oracle immediately
• Isolate vulnerable instances if patching is not immediately possible
• Monitor outbound network traffic for irregularities

Patch Information

Refer to Oracle's security advisory here for patch details and instructions.

Workarounds

If immediate patch application is not feasible, consider disabling network functionality for Java Web Start applications running untrusted code.

# Disable network protocol for risky components
iptables -A OUTPUT -p tcp --dport 80 -j DROP
iptables -A OUTPUT -p tcp --dport 443 -j DROP