CVE-2024-36047 Overview
CVE-2024-36047 is an Improper Input Validation vulnerability (CWE-20) affecting Infoblox NIOS, a network infrastructure operating system used for DNS, DHCP, and IP address management (IPAM). The vulnerability exists in Infoblox NIOS versions through 8.6.4 and 9.x through 9.0.3, allowing attackers to exploit insufficient input validation mechanisms.
Critical Impact
This network-accessible vulnerability requires no authentication or user interaction to exploit, potentially allowing attackers to compromise confidentiality, integrity, and availability of affected Infoblox NIOS deployments.
Affected Products
- Infoblox NIOS versions through 8.6.4
- Infoblox NIOS 9.x versions through 9.0.3
Discovery Timeline
- 2025-02-27 - CVE-2024-36047 published to NVD
- 2025-04-10 - Last updated in NVD database
Technical Details for CVE-2024-36047
Vulnerability Analysis
This vulnerability stems from improper input validation within the Infoblox NIOS platform. Infoblox NIOS serves as a critical network infrastructure component, managing DNS, DHCP, and IP address allocation for enterprise environments. The improper input validation flaw could allow remote attackers to submit malformed or malicious input that is not properly sanitized or validated before processing.
Given the network-accessible nature of this vulnerability and the lack of authentication requirements, exploitation could be straightforward for attackers with network access to vulnerable NIOS appliances. The impact is severe as successful exploitation could lead to complete compromise of the affected system, affecting all three security pillars: confidentiality, integrity, and availability.
Root Cause
The root cause is classified as CWE-20 (Improper Input Validation). This weakness occurs when the software does not validate or incorrectly validates input that can affect the control flow or data flow of a program. In the context of Infoblox NIOS, this means user-supplied input is not properly checked for expected formats, lengths, or types before being processed by the system.
Attack Vector
The attack vector is network-based, meaning exploitation can occur remotely without requiring local access to the target system. Key characteristics of this vulnerability include:
- Remote Exploitation: Attackers can target vulnerable systems over the network
- No Authentication Required: The vulnerability can be exploited without valid credentials
- No User Interaction: Exploitation does not require any action from legitimate users
- High Impact: Successful exploitation affects confidentiality, integrity, and availability
The vulnerability mechanism involves submitting specially crafted input to the NIOS system that bypasses validation controls. Technical details regarding the specific input vectors and exploitation techniques are available in the Infoblox Support Article.
Detection Methods for CVE-2024-36047
Indicators of Compromise
- Unusual or malformed requests to Infoblox NIOS management interfaces
- Unexpected system behavior or crashes on NIOS appliances
- Anomalous network traffic patterns targeting NIOS services
- Unauthorized configuration changes or data access on NIOS systems
Detection Strategies
- Monitor network traffic to Infoblox NIOS appliances for abnormal request patterns
- Implement intrusion detection/prevention system (IDS/IPS) rules targeting known exploitation signatures
- Review NIOS system logs for authentication failures, unexpected access attempts, or error messages related to input processing
- Deploy network segmentation monitoring to detect lateral movement from compromised NIOS systems
Monitoring Recommendations
- Enable comprehensive logging on all Infoblox NIOS appliances
- Configure SIEM alerts for anomalous activity patterns targeting DNS/DHCP infrastructure
- Establish baseline network behavior for NIOS systems and alert on deviations
- Monitor for unexpected outbound connections from NIOS appliances
How to Mitigate CVE-2024-36047
Immediate Actions Required
- Upgrade Infoblox NIOS to a patched version as specified in the vendor advisory
- Restrict network access to NIOS management interfaces to trusted networks only
- Implement additional network segmentation around critical DNS/DHCP infrastructure
- Review access controls and authentication mechanisms for NIOS systems
Patch Information
Infoblox has released security updates to address this vulnerability. Organizations should consult the official Infoblox Support Article for specific patch versions and upgrade instructions. Affected versions include NIOS through 8.6.4 and 9.x through 9.0.3.
Workarounds
- Implement strict firewall rules to limit access to NIOS management interfaces from trusted IP ranges only
- Deploy a web application firewall (WAF) or reverse proxy with input validation capabilities in front of NIOS services
- Enable enhanced logging and monitoring while awaiting patch deployment
- Consider temporary isolation of vulnerable NIOS systems from untrusted network segments
# Example firewall rule to restrict NIOS management access
# Adjust IP ranges and ports according to your environment
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
