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CVE-2024-21172

9.0 CRITICAL
Remote Code Execution

📋 TL;DR

This critical vulnerability in Oracle Hospitality OPERA 5 allows unauthenticated attackers with network access via HTTP to potentially compromise the entire system. Affected are specific versions of Oracle Hospitality OPERA 5 (5.6.19.19, 5.6.25.8, and 5.6.26.4). Successful exploitation could lead to complete system takeover with impacts extending beyond the vulnerable component.

💻 Affected Systems

Products:
  • Oracle Hospitality OPERA 5
Versions: 5.6.19.19, 5.6.25.8, 5.6.26.4
Operating Systems: Not specified in CVE
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in the Opera Servlet component. Attacks may impact additional products beyond OPERA 5 (scope change).

📦 What is this software?

Hospitality Opera 5 by Oracle

View all CVEs affecting Hospitality Opera 5 →

Hospitality Opera 5 by Oracle

View all CVEs affecting Hospitality Opera 5 →

Hospitality Opera 5 by Oracle

View all CVEs affecting Hospitality Opera 5 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of Oracle Hospitality OPERA 5 system leading to full administrative control, data theft, system manipulation, and potential lateral movement to connected systems.

🟠

Likely Case

Unauthenticated remote code execution leading to data exfiltration, system disruption, or installation of persistent backdoors.

🟢

If Mitigated

Limited impact due to network segmentation, strong authentication requirements, and proper access controls preventing unauthenticated access.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: HIGH

CVSS indicates 'difficult to exploit' (AC:H) but unauthenticated (PR:N). No public exploit details available at this time.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Apply patches from Oracle Critical Patch Update October 2024

Vendor Advisory: https://www.oracle.com/security-alerts/cpuoct2024.html

Restart Required: Yes

Instructions:

1. Review Oracle Critical Patch Update Advisory for October 2024. 2. Download appropriate patches for your OPERA 5 version. 3. Apply patches following Oracle's documentation. 4. Restart affected services/systems. 5. Verify patch application.

🔧 Temporary Workarounds

Network Segmentation

linux

Restrict HTTP access to OPERA 5 systems to trusted networks only

firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="TRUSTED_NETWORK" port protocol="tcp" port="80" accept'
firewall-cmd --reload

Web Application Firewall

all

Deploy WAF with rules to block suspicious HTTP requests to OPERA 5 endpoints

🧯 If You Can't Patch

  • Implement strict network access controls to limit HTTP access to OPERA 5 systems
  • Monitor for unusual HTTP traffic patterns and authentication attempts

🔍 How to Verify

Check if Vulnerable:

Check OPERA 5 version against affected versions (5.6.19.19, 5.6.25.8, 5.6.26.4)

Check Version:

Check OPERA 5 administration interface or configuration files for version information

Verify Fix Applied:

Verify version has been updated beyond affected versions and check Oracle patch documentation

📡 Detection & Monitoring

Log Indicators:

  • Unusual HTTP requests to Opera Servlet endpoints
  • Unauthenticated access attempts
  • Unexpected process execution

Network Indicators:

  • Unusual HTTP traffic patterns to OPERA 5 systems
  • Traffic from unexpected sources

SIEM Query:

source="opera_logs" AND (http_method="POST" OR http_method="GET") AND (status_code="200" OR status_code="500") AND user_agent="*suspicious*"

📊 Metadata

CVE ID: CVE-2024-21172
CVSS v3 Score: 9.0 (CRITICAL)
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: October 15, 2024
Last Updated: October 21, 2024

🔗 References

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