1. Introduction
The RuggedCom RuggedOS Web-Based Admin Interface Default Credentials vulnerability involves devices running a web interface with pre-set usernames and passwords. This allows unauthorised access to device settings, potentially compromising network security. Systems commonly affected are RuggedCom switches and routers using the ROS operating system. A successful exploit could lead to loss of confidentiality, integrity, and availability of network services.
2. Technical Explanation
The vulnerability exists because RuggedCom devices ship with default login credentials that are not changed during initial setup. An attacker can use these known credentials to access the web-based administration interface remotely. There is no CVE currently associated with this specific issue, but similar vulnerabilities have been assigned CWE-798 (Use of Hard-coded Credentials). A simple example would be an attacker attempting login using ‘admin’ as both username and password. Affected devices include those running RuggedOS versions prior to a patch being applied.
- Root cause: The use of predictable default credentials for the web administration interface.
- Exploit mechanism: An attacker attempts to log in to the device’s web interface using common default usernames and passwords (e.g., admin/admin, root/root). If successful, they gain full administrative control.
- Scope: RuggedCom switches and routers running ROS operating system with the default web administration interface enabled.
3. Detection and Assessment
Confirming vulnerability involves checking if default credentials still work on a device. A quick check is to attempt login via the web interface. More thorough assessment requires reviewing configuration files.
- Quick checks: Attempt to log in to the web administration interface using ‘admin’ as both username and password.
- Scanning: Nessus plugin ID 16289 may identify this issue, but results should be verified manually.
# No command available to directly check credentials without attempting login. Access the web interface via a browser.4. Solution / Remediation Steps
Fixing this issue requires changing default passwords for all accounts. Follow these steps carefully.
4.1 Preparation
- Dependencies: Access to the web administration interface and knowledge of current credentials (if changed previously). Roll back involves restoring the backed-up configuration file.
- Change windows should be scheduled during off-peak hours with approval from network operations teams.
4.2 Implementation
- Step 1: Log in to the RuggedCom device’s web administration interface using existing credentials (or default if unchanged).
- Step 2: Navigate to the ‘System’ or ‘Administration’ section of the web interface. The exact location varies by ROS version.
- Step 3: Locate the user account settings and change the password for all default accounts, including ‘admin’ and any other pre-defined users. Use strong, unique passwords.
- Step 4: Save the changes and log out of the web interface.
4.3 Config or Code Example
Before
Username: admin
Password: adminAfter
Username: admin
Password: StrongUniquePassword123!4.4 Security Practices Relevant to This Vulnerability
Practices that directly address this vulnerability type include strong password policies and least privilege access control.
- Practice 1: Implement a strong password policy requiring complex passwords and regular changes to reduce the risk of compromise.
- Practice 2: Apply the principle of least privilege, granting users only the minimum necessary permissions to perform their tasks.
4.5 Automation (Optional)
No suitable automation script is available for this specific vulnerability due to device configuration differences.
5. Verification / Validation
- Post-fix check: Attempt to log in to the web administration interface using ‘admin’ as both username and password. Expected output: Login failure message.
- Re-test: Repeat the quick check from Section 3; default credentials should now fail to authenticate.
- Smoke test: Verify that legitimate users can still access the web interface with their new passwords.
- Monitoring: Review device logs for failed login attempts using default credentials, which would indicate ongoing attacks.
Attempting login as admin/admin should result in "Invalid username or password" error message.6. Preventive Measures and Monitoring
Preventive measures include regularly updating security baselines and incorporating vulnerability scanning into deployment pipelines.
- Baselines: Update your network device security baseline to require password changes on initial setup, or disable the web interface if not needed.
- Asset and patch process: Implement a regular patch management cycle for RuggedCom devices to ensure timely application of security updates.
7. Risks, Side Effects, and Roll Back
Changing passwords could disrupt existing monitoring or automation scripts that rely on default credentials. Incorrect password configuration can lock out administrators.
- Risk or side effect 1: Disruption to existing monitoring tools using default credentials; update these tools with the new credentials.
- Risk or side effect 2: Incorrect password configuration leading to administrator lockout; ensure accurate recording of new passwords and have a recovery process in place.
- Roll back: Restore the backed-up device configuration file from Section 4.1.
8. References and Resources
- Vendor advisory or bulletin: RuggedCom Security Advisories
- NVD or CVE entry: No specific CVE currently exists for this issue, but similar vulnerabilities can be found on the NVD website (https://nvd.nist.gov/).
- Product or platform documentation relevant to the fix: RuggedCom Documentation