Table of Contents
March 19, 2025
|5m
How to Fix CVE-2024-11131: Critical Out-of-Bounds Read Vulnerability in Synology Cameras BC500, CC400W, and TC500?
Synology has recently addressed a critical security vulnerability affecting several of its camera models. Tracked as CVE-2024-11131, this out-of-bounds read flaw could allow remote attackers to potentially execute arbitrary code. This article aims to provide security professionals with a comprehensive overview of the vulnerability and actionable steps to remediate it, protecting their environments from potential exploitation. We will cover affected products, impact, and most importantly, how to fix or mitigate this vulnerability.
A Short Introduction to Synology Cameras
Synology offers a range of network cameras designed for surveillance and security applications. These cameras are often deployed in homes, businesses, and other environments to provide video monitoring and recording capabilities. Models like the BC500, CC400W, and TC500 are popular choices, offering features such as high-definition video, motion detection, and remote access. Because these devices are network-connected and often exposed to the internet, securing them is crucial to prevent unauthorized access and potential compromise.
Summary of CVE-2024-11131
CVE ID: CVE-2024-11131
Description: An out-of-bounds read vulnerability in the video interface of Synology cameras allows remote attackers to potentially execute arbitrary code.
CVSS Score: 9.8 (Critical)
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The vulnerability, CVE-2024-11131, stems from an out-of-bounds read error within the video interface of the affected Synology camera models. This flaw occurs when the software attempts to access memory locations outside the allocated buffer. A remote attacker can exploit this by sending specially crafted requests to the camera, triggering the out-of-bounds read and potentially leading to arbitrary code execution. The vulnerability is considered critical due to its high CVSS score, reflecting the ease of exploitation and the severity of the potential impact.
Impact of CVE-2024-11131
The impact of CVE-2024-11131 is severe, as it allows remote attackers to potentially execute arbitrary code on the affected Synology cameras. This can lead to a complete compromise of the camera system, granting attackers unauthorized access and control. The potential impacts include:
Complete system compromise: Attackers can gain full control over the camera, allowing them to modify its configuration, install malicious software, or use it as a foothold for further attacks on the network.
Unauthorized access to camera systems: Attackers can view live video feeds, access recorded footage, and manipulate camera settings without authorization, compromising privacy and security.
Potential data theft or manipulation: Sensitive data stored on the camera or transmitted through it could be stolen or manipulated by attackers.
Ability to take control of affected camera devices: Attackers can use compromised cameras to launch denial-of-service attacks or other malicious activities, disrupting network services and potentially causing further damage.
Given these potential impacts, it is crucial to address this vulnerability promptly to protect your camera systems and network from exploitation.
Products Affected by CVE-2024-11131
The following Synology camera models are affected by CVE-2024-11131 in firmware versions before 1.2.0-0525:
| Product | Severity | Fixed Release Availability |
|---|---|---|
| BC500 | Critical | Upgrade to 1.2.0-0525 or above. |
| CC400W | Critical | Upgrade to 1.2.0-0525 or above. |
| TC500 | Critical | Upgrade to 1.2.0-0525 or above. |
There are no explicitly listed products that are not affected in the provided advisory. Users should assume all other Synology camera models are not affected unless otherwise stated by Synology.
How to Check Your Product is Vulnerable?
To determine if your Synology camera is vulnerable to CVE-2024-11131, follow these steps:
Access the Camera's Web Interface: Log in to the web interface of your Synology camera using its IP address in a web browser.
Navigate to System Information: Look for a section labeled "System Information," "About," or similar. This section usually provides details about the camera's firmware version.
Check the Firmware Version: Identify the firmware version installed on your camera. If the version is earlier than 1.2.0-0525, your camera is vulnerable and requires an update.
How to Fix the Vulnerability?
The primary remediation strategy to fix CVE-2024-11131 is to update the firmware of the affected Synology cameras to version 1.2.0-0525 or later. Follow these steps to update the firmware:
Download the Latest Firmware: Visit the Synology Download Center (https://www.synology.com/en-us/support/download) and select your camera model (BC500, CC400W, or TC500). Download the latest firmware version available.
Log in to the Camera's Web Interface: Access the camera's web interface using its IP address in a web browser.
Navigate to Firmware Update: Look for a section labeled "Firmware Update," "System Update," or similar.
Upload the Firmware File: Select the downloaded firmware file and upload it to the camera.
Start the Update Process: Follow the on-screen instructions to start the firmware update process. Ensure that the camera remains powered on during the update.
Verify the Update: After the update is complete, verify that the firmware version is 1.2.0-0525 or later by checking the System Information section.
In addition to updating the firmware, consider the following mitigation measures:
Restrict Network Access: Limit network access to the camera management interfaces to trusted networks or IP addresses.
Implement Network Segmentation: Deploy cameras on a separate network segment to isolate them from other critical systems.
Use Firewalls: Configure firewalls to limit external access to the camera systems, blocking unauthorized traffic.
Monitor for Suspicious Activity: Monitor network traffic and camera logs for any suspicious activities targeting these camera models.
By implementing these measures, you can significantly reduce the risk of exploitation and protect your Synology camera systems from potential attacks. Always monitor official Synology channels for any security updates or patches related to this vulnerability.
Found this article interesting? Keep visit thesecmaster.com, and our social media page on Facebook, LinkedIn, Twitter, Telegram, Tumblr, Medium, and Instagram and subscribe to receive tips like this.
You may also like these articles:
Arun KL
Arun KL is a cybersecurity professional with 15+ years of experience in IT infrastructure, cloud security, vulnerability management, Penetration Testing, security operations, and incident response. He is adept at designing and implementing robust security solutions to safeguard systems and data. Arun holds multiple industry certifications including CCNA, CCNA Security, RHCE, CEH, and AWS Security.
