CVE-2024-37567
📋 TL;DR
Infoblox NIOS through version 8.6.4 has improper access control for Grids, allowing unauthorized users to access or modify Grid configurations. This affects all Infoblox NIOS deployments running vulnerable versions, potentially compromising DNS, DHCP, and IPAM management.
💻 Affected Systems
- Infoblox NIOS
📦 What is this software?
Nios by Infoblox
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Grid infrastructure allowing attackers to modify DNS records, redirect traffic, disrupt DHCP services, or gain persistent network access.
Likely Case
Unauthorized configuration changes leading to service disruption, data leakage, or privilege escalation within the Grid environment.
If Mitigated
Limited impact if proper network segmentation and access controls prevent unauthorized Grid access attempts.
🎯 Exploit Status
Exploitation requires some level of access to the Grid management interface, but the improper access control makes exploitation straightforward once initial access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.6.5 and later
Vendor Advisory: https://support.infoblox.com/s/article/000010393
Restart Required: Yes
Instructions:
1. Backup current Grid configuration. 2. Download and apply NIOS 8.6.5 or later from Infoblox support portal. 3. Follow Infoblox upgrade procedures for your deployment type. 4. Restart Grid services as required by the upgrade process.
🔧 Temporary Workarounds
Restrict Grid Management Access
allLimit access to Grid management interfaces using network ACLs and firewall rules
Implement Strict RBAC
allApply principle of least privilege and regularly audit user permissions
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Grid management interfaces
- Enable comprehensive logging and monitoring for unauthorized Grid access attempts
🔍 How to Verify
Check if Vulnerable:
Check NIOS version via Grid Manager GUI or CLI: show versionCheck Version:
show versionVerify Fix Applied:
Verify version is 8.6.5 or later and test access control functionality📡 Detection & Monitoring
Log Indicators:
- Unauthorized Grid access attempts
- Unexpected configuration changes
- Failed authentication events followed by successful Grid operations
Network Indicators:
- Unusual traffic to Grid management ports (typically 443, 22)
- Connection attempts from unauthorized IP ranges
SIEM Query:
source="infoblox" AND (event_type="grid_access" OR event_type="config_change") AND user NOT IN [authorized_users]