CVE-2024-36047
📋 TL;DR
Infoblox NIOS has an improper input validation vulnerability that could allow attackers to execute arbitrary code or cause denial of service. This affects all organizations running vulnerable versions of Infoblox NIOS for DNS, DHCP, and IP address management. The high CVSS score indicates this is a critical vulnerability requiring immediate attention.
💻 Affected Systems
- Infoblox NIOS
📦 What is this software?
Nios by Infoblox
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, and lateral movement within the network
Likely Case
Denial of service affecting DNS/DHCP services or potential remote code execution with network access
If Mitigated
Limited impact if proper network segmentation and access controls prevent exploitation attempts
🎯 Exploit Status
CWE-20 vulnerabilities typically have low exploitation complexity when details are known. The high CVSS score suggests exploitation is straightforward once discovered.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: NIOS 8.6.5 and 9.0.4 or later
Vendor Advisory: https://support.infoblox.com/s/article/000010391
Restart Required: Yes
Instructions:
1. Download the latest NIOS version from Infoblox support portal. 2. Backup current configuration. 3. Apply the update through the Infoblox GUI or CLI. 4. Restart the appliance as required. 5. Verify services are functioning correctly.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Infoblox management interfaces to only trusted administrative networks
Input Validation Rules
allImplement additional input validation at network perimeter devices if possible
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Infoblox appliances from untrusted networks
- Deploy intrusion detection/prevention systems with rules specific to Infoblox traffic patterns
🔍 How to Verify
Check if Vulnerable:
Check NIOS version in GUI: Grid Manager > Grid Properties > General tab, or CLI: show versionCheck Version:
show versionVerify Fix Applied:
Verify version is 8.6.5+ or 9.0.4+ and check for any security advisories applied📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts
- Unexpected configuration changes
- Abnormal process creation
Network Indicators:
- Unusual traffic patterns to Infoblox management ports
- Malformed packets targeting Infoblox services
SIEM Query:
source="infoblox" AND (event_type="authentication_failure" OR event_type="configuration_change")