CVE-2025-30730: Oracle Application Object Library DoS Flaw

CVE-2025-30730 Overview

CVE-2025-30730 is a Denial of Service vulnerability affecting the Oracle Application Object Library product within Oracle E-Business Suite. The vulnerability exists in the Core component and allows unauthenticated attackers with network access via HTTP to cause a complete denial of service condition. This vulnerability is classified as CWE-400 (Uncontrolled Resource Consumption), indicating that improper resource management enables attackers to exhaust system resources and disrupt service availability.

Critical Impact

Unauthenticated remote attackers can cause a complete denial of service (hang or frequently repeatable crash) against Oracle Application Object Library systems, disrupting critical business operations without requiring any user interaction or authentication.

Affected Products

• Oracle Application Object Library versions 12.2.5 through 12.2.14
• Oracle E-Business Suite (component: Core)

Discovery Timeline

• April 15, 2025 - CVE-2025-30730 published to NVD
• April 29, 2025 - Last updated in NVD database

Technical Details for CVE-2025-30730

Vulnerability Analysis

This vulnerability represents a resource exhaustion flaw in the Oracle Application Object Library Core component. The weakness allows remote attackers to consume excessive system resources through specially crafted HTTP requests, ultimately causing the application to become unresponsive or crash repeatedly. The attack requires no authentication and can be executed remotely over the network, making it particularly concerning for internet-facing Oracle E-Business Suite deployments.

The vulnerability impacts only availability—there is no effect on data confidentiality or integrity. However, the complete denial of service capability means that successful exploitation can entirely disrupt Oracle E-Business Suite operations, affecting dependent business processes and workflows.

Root Cause

The root cause of CVE-2025-30730 is Uncontrolled Resource Consumption (CWE-400). The Oracle Application Object Library Core component fails to properly limit resource allocation when processing certain HTTP requests. This allows attackers to trigger excessive memory, CPU, or connection consumption, leading to resource exhaustion and service degradation or complete unavailability.

Attack Vector

The attack vector is network-based, requiring only HTTP access to the vulnerable Oracle Application Object Library component. Key characteristics of this attack include:

• Remote Exploitation: Attackers can launch attacks from any network location with HTTP connectivity to the target
• No Authentication Required: The vulnerability can be exploited without valid credentials
• No User Interaction: Exploitation does not require any action from legitimate users
• Low Attack Complexity: The vulnerability is described as "easily exploitable"

Due to the absence of verified proof-of-concept code, specific technical exploitation details are not publicly documented. Organizations should consult the Oracle Security Alert April 2025 for detailed technical guidance and patch information.

Detection Methods for CVE-2025-30730

Indicators of Compromise

• Unexpected service crashes or hangs in Oracle Application Object Library components
• Abnormal resource consumption (CPU, memory, connections) on Oracle E-Business Suite servers
• High volume of HTTP requests targeting Oracle Application Object Library endpoints
• Application log entries indicating resource exhaustion or out-of-memory conditions

Detection Strategies

• Implement network-level monitoring to detect unusual HTTP traffic patterns to Oracle E-Business Suite servers
• Configure application performance monitoring (APM) to alert on abnormal response times or error rates
• Deploy Web Application Firewalls (WAF) with rate limiting rules for Oracle E-Business Suite endpoints
• Enable detailed logging in Oracle Application Object Library to capture request patterns and error conditions

Monitoring Recommendations

• Monitor Oracle E-Business Suite server resource utilization (CPU, memory, network connections) with threshold-based alerting
• Implement log aggregation and analysis for Oracle Application Object Library audit and error logs
• Configure SIEM rules to correlate HTTP access logs with resource exhaustion indicators
• Establish baseline metrics for normal application behavior to detect anomalous activity

How to Mitigate CVE-2025-30730

Immediate Actions Required

• Apply the Oracle Critical Patch Update (CPU) for April 2025 to all affected Oracle E-Business Suite installations
• Audit all Oracle E-Business Suite deployments to identify systems running vulnerable versions 12.2.5 through 12.2.14
• Restrict network access to Oracle Application Object Library components to trusted networks where possible
• Implement rate limiting at the network or application layer to reduce the impact of potential exploitation attempts

Patch Information

Oracle has released security patches as part of the April 2025 Critical Patch Update (CPU). Organizations should obtain and apply the appropriate patches from the Oracle Security Alert April 2025. This patch addresses the resource consumption vulnerability in the Oracle Application Object Library Core component.

Workarounds

• Implement Web Application Firewall (WAF) rules to rate-limit and filter suspicious HTTP requests targeting Oracle E-Business Suite
• Deploy network segmentation to limit exposure of Oracle Application Object Library to untrusted networks
• Configure load balancers with connection limits and request throttling to mitigate resource exhaustion attempts
• Monitor and automatically restart affected services if crashes are detected while awaiting patch deployment

# Example: Configure connection limits at the network level
# Limit concurrent connections per source IP to Oracle E-Business Suite
iptables -A INPUT -p tcp --dport 80 -m connlimit --connlimit-above 50 -j REJECT
iptables -A INPUT -p tcp --dport 443 -m connlimit --connlimit-above 50 -j REJECT