How to remediate – Foscam Detection

1. Introduction

The remote host is an IP Camera, specifically a Foscam camera. These cameras have embedded web servers that can be vulnerable if not properly secured. This matters to businesses as compromised cameras can allow attackers access to live feeds and internal networks. A successful exploit could lead to confidentiality breaches through video streams, integrity compromise via altered settings, and availability issues due to denial of service or botnet inclusion.

2. Technical Explanation

Foscam IP Cameras often ship with default credentials or use easily guessable passwords. They may also have vulnerabilities in their web server software allowing for remote code execution or unauthorized access. An attacker could exploit this by attempting to log in using common default credentials, then gaining control of the camera’s settings and potentially accessing the network it’s connected to.

• Root cause: Weak or default credentials combined with potential web server vulnerabilities.
• Exploit mechanism: An attacker attempts to login with default credentials (e.g., admin/admin) or exploits a known vulnerability in the camera’s web interface.
• Scope: Foscam IP Cameras and potentially re-branded models using similar firmware.

3. Detection and Assessment

To confirm if a system is vulnerable, first check for default credentials. A thorough method involves scanning the network for open ports associated with web servers on these devices.

• Quick checks: Access the camera’s web interface via its IP address in a browser and attempt to log in using default credentials (admin/admin).
• Scanning: Nmap can be used to identify open ports like port 80 or 443. Example command: `nmap -p 80,443 `.
• Logs and evidence: Check camera logs for failed login attempts using default credentials, if accessible.

nmap -p 80,443 

4. Solution / Remediation Steps

To fix the issue, change default credentials and keep firmware updated. Only apply these steps to affected Foscam cameras.

4.1 Preparation

• No services need stopping. A roll back plan is to restore from backup (if available) or reset the camera to factory defaults.
• A change window may be needed depending on network access and impact of service interruption during configuration. Approval should come from the IT security team.

4.2 Implementation

1. Step 1: Access the camera’s web interface via its IP address in a browser.
2. Step 2: Navigate to the user management or administration section of the settings.
3. Step 3: Change the default username and password to strong, unique credentials.
4. Step 4: Save the new credentials and log out then back in with the updated details to confirm they work.

4.3 Config or Code Example

Before

Username: admin
Password: admin

After

Username: 
Password: 

4.4 Security Practices Relevant to This Vulnerability

Practices that directly address this vulnerability type include strong password policies and regular firmware updates. Least privilege can also reduce impact if a camera is compromised.

• Practice 1: Implement a strong password policy requiring complex passwords and frequent changes.
• Practice 2: Regularly update the camera’s firmware to patch known vulnerabilities.

4.5 Automation (Optional)

Automation is difficult due to device diversity, but configuration management tools can be used if cameras support API access for credential updates.

5. Verification / Validation

• Post-fix check: Attempt to log in using the old default credentials (admin/admin). Expected output: Login failed or access denied.
• Re-test: Re-run the quick check from Section 3, attempting login with default credentials – it should fail.
• Smoke test: Verify live video streaming is accessible via the camera’s web interface or associated mobile app.

Attempt to log in using admin/admin - expected output: Login failed

6. Preventive Measures and Monitoring

Preventive measures include updating security baselines for IoT devices and including regular firmware updates in the patch process. For example, a CIS control related to secure configuration.

• Baselines: Update your IoT device security baseline to require strong passwords and automatic firmware updates where possible.
• Pipelines: Implement vulnerability scanning as part of your CI/CD pipeline for any custom camera integrations.
• Asset and patch process: Review the camera’s firmware version monthly and apply patches promptly.

7. Risks, Side Effects, and Roll Back

Changing credentials could temporarily disrupt access if incorrect details are entered. A roll back involves restoring from backup (if available) or resetting to factory defaults.

• Roll back: 1. Restore configuration from backup if available. 2. If no backup, reset the camera to factory defaults via the physical reset button.

8. References and Resources

Link only to sources that match this exact vulnerability.

• Vendor advisory or bulletin: https://www.foscam.com/