CVE-2024-33618: Bosch VMS Central Server DoS Vulnerability

CVE-2024-33618 Overview

CVE-2024-33618 is an Uncontrolled Resource Consumption vulnerability affecting the Bosch VMS Central Server in Bosch VMS version 12.0.1. This security flaw allows remote attackers to consume excessive amounts of disk space via the network interface, potentially leading to a denial of service condition that impacts the availability of video management system operations.

Critical Impact

Remote attackers can exhaust disk resources on the Bosch VMS Central Server without authentication, potentially disrupting critical video surveillance and management operations.

Affected Products

• Bosch VMS 12.0.1
• Bosch VMS Central Server

Discovery Timeline

• 2026-04-15 - CVE-2024-33618 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2024-33618

Vulnerability Analysis

This vulnerability is classified as CWE-400: Uncontrolled Resource Consumption. The flaw exists in how the Bosch VMS Central Server handles incoming network requests, allowing attackers to trigger excessive disk space consumption. The attack can be conducted remotely over the network without requiring authentication or user interaction, making it particularly dangerous for exposed systems.

The vulnerability enables attackers to exhaust disk storage resources on the target server, which can result in service degradation or complete denial of service for video management operations. In enterprise environments where Bosch VMS manages critical surveillance infrastructure, this could have significant operational impacts.

Root Cause

The root cause stems from insufficient validation and rate limiting of network requests that trigger disk write operations. The Bosch VMS Central Server fails to properly constrain resource consumption when processing certain network traffic, allowing malicious actors to force the system to consume disk space without appropriate limits or safeguards.

Attack Vector

The attack vector is network-based, requiring no authentication or privileges to exploit. An attacker with network access to the Bosch VMS Central Server can send specially crafted requests that cause the server to write excessive data to disk. The attack has low complexity and requires no user interaction, making it feasible for automated exploitation.

The exploitation mechanism involves sending network requests that trigger disk write operations. Without proper resource management controls, repeated requests can rapidly fill available disk space, leading to system instability or service unavailability.

Detection Methods for CVE-2024-33618

Indicators of Compromise

• Sudden and unexplained increase in disk space consumption on Bosch VMS Central Server systems
• Unusually high volume of network traffic directed at the VMS Central Server
• Disk space alerts or system warnings indicating storage capacity issues
• Service degradation or unavailability of Bosch VMS functions

Detection Strategies

• Monitor disk usage patterns on Bosch VMS Central Server systems for abnormal growth rates
• Implement network traffic analysis to detect unusual request volumes targeting the VMS server
• Configure alerting thresholds for disk consumption that trigger before critical capacity is reached
• Review server logs for patterns of repetitive requests that could indicate exploitation attempts

Monitoring Recommendations

• Deploy real-time disk space monitoring with automated alerts when usage exceeds defined thresholds
• Implement network intrusion detection rules to identify potential resource exhaustion attacks
• Enable verbose logging on the Bosch VMS Central Server to capture detailed request information
• Establish baseline metrics for normal disk consumption to facilitate anomaly detection

How to Mitigate CVE-2024-33618

Immediate Actions Required

• Review and apply the latest security updates from Bosch as outlined in the Bosch Security Advisory BOSCH-SA-162032-BT
• Restrict network access to the Bosch VMS Central Server to trusted sources only
• Implement network segmentation to isolate the VMS infrastructure from untrusted networks
• Configure disk quotas and storage limits where possible to contain potential abuse

Patch Information

Bosch has released security guidance for this vulnerability. Administrators should consult the Bosch Security Advisory BOSCH-SA-162032-BT for official patch information, remediation steps, and updated software versions that address CVE-2024-33618.

Workarounds

• Implement firewall rules to restrict access to the Bosch VMS Central Server to authorized IP addresses only
• Deploy rate limiting on network devices in front of the VMS server to mitigate resource exhaustion attempts
• Configure monitoring and automated responses to free disk space or restart services if thresholds are exceeded
• Consider deploying a web application firewall or similar security appliance to filter malicious traffic

# Example firewall configuration to restrict VMS server access
# Adjust IP ranges according to your environment

# Allow traffic only from trusted management networks
iptables -A INPUT -s 10.0.0.0/8 -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -s 192.168.1.0/24 -p tcp --dport 443 -j ACCEPT
# Drop all other traffic to the VMS service port
iptables -A INPUT -p tcp --dport 443 -j DROP