CVE-2025-30756
📋 TL;DR
CVE-2025-30756 is a cross-site request forgery (CSRF) vulnerability in Oracle REST Data Services 24.2.0 that allows unauthenticated attackers to manipulate data via HTTP requests. The vulnerability requires user interaction (such as clicking a malicious link) but can lead to unauthorized data modification and limited data exposure. All systems running the affected version with network access are potentially vulnerable.
💻 Affected Systems
- Oracle REST Data Services
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify or delete critical data in Oracle REST Data Services and potentially impact connected systems, leading to data corruption, unauthorized access to sensitive information, and business disruption.
Likely Case
Attackers trick authenticated users into clicking malicious links that perform unauthorized data modifications, potentially altering configuration settings or application data.
If Mitigated
With proper CSRF protections and network segmentation, impact is limited to isolated test environments or non-critical systems with minimal data exposure.
🎯 Exploit Status
Exploitation requires user interaction but is considered easily exploitable per Oracle's assessment. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Oracle Critical Patch Update for July 2025
Vendor Advisory: https://www.oracle.com/security-alerts/cpujul2025.html
Restart Required: Yes
Instructions:
1. Review Oracle Critical Patch Update Advisory for July 2025. 2. Download and apply the security patch for Oracle REST Data Services. 3. Restart the Oracle REST Data Services instance. 4. Verify the patch was successfully applied.
🔧 Temporary Workarounds
Implement CSRF Protection
allConfigure CSRF tokens and validate all state-changing requests
Configure CSRF protection in ORDS configuration files
Network Segmentation
allRestrict network access to Oracle REST Data Services
Configure firewall rules to limit HTTP access to trusted sources only
🧯 If You Can't Patch
- Implement strict network access controls and segment Oracle REST Data Services from untrusted networks
- Deploy web application firewall (WAF) with CSRF protection rules and monitor for suspicious requests
🔍 How to Verify
Check if Vulnerable:
Check Oracle REST Data Services version using: SELECT * FROM apex_release; or check ORDS configuration files for version informationCheck Version:
SELECT * FROM apex_release; or check ORDS configuration/version filesVerify Fix Applied:
Verify patch installation through Oracle's patch verification tools and confirm version is no longer 24.2.0📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP POST/PUT/DELETE requests from unexpected sources
- Multiple failed CSRF token validations
- Suspicious referrer headers in requests
Network Indicators:
- HTTP requests with missing or invalid CSRF tokens
- Requests originating from unexpected IP ranges to ORDS endpoints
SIEM Query:
source="ords_access.log" AND (http_method="POST" OR http_method="PUT" OR http_method="DELETE") AND csrf_token="null"