CVE-2020-28398
📋 TL;DR
This CSRF vulnerability in Siemens RUGGEDCOM ROX devices allows attackers to trick authenticated users into executing unauthorized configuration changes by clicking malicious links. Affected devices include multiple RUGGEDCOM ROX models running versions below V2.16.0. The vulnerability exists in the CLI feature of the web interface.
💻 Affected Systems
- RUGGEDCOM ROX MX5000
- RUGGEDCOM ROX MX5000RE
- RUGGEDCOM ROX RX1400
- RUGGEDCOM ROX RX1500
- RUGGEDCOM ROX RX1501
- RUGGEDCOM ROX RX1510
- RUGGEDCOM ROX RX1511
- RUGGEDCOM ROX RX1512
- RUGGEDCOM ROX RX1524
- RUGGEDCOM ROX RX1536
- RUGGEDCOM ROX RX5000
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover, configuration modification leading to service disruption, network compromise, or data exfiltration.
Likely Case
Unauthorized configuration changes, service disruption, or credential harvesting through crafted requests.
If Mitigated
Limited impact with proper CSRF protections, network segmentation, and user awareness training.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users; CSRF attacks are well-understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V2.16.0 or later
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-384652.html
Restart Required: Yes
Instructions:
1. Download firmware V2.16.0 or later from Siemens support portal. 2. Backup device configuration. 3. Apply firmware update via web interface or CLI. 4. Verify update and restore configuration if needed.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection tokens to web interface requests if custom web applications are used.
Network Segmentation
allRestrict web interface access to trusted networks only.
🧯 If You Can't Patch
- Implement strict access controls and network segmentation to limit web interface exposure.
- Use browser extensions or configurations to block cross-site requests and enforce same-origin policies.
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or CLI; if below V2.16.0, device is vulnerable.Check Version:
show version (CLI) or check System Information in web interfaceVerify Fix Applied:
Verify firmware version is V2.16.0 or later after update.📡 Detection & Monitoring
Log Indicators:
- Unexpected configuration changes in device logs
- Multiple failed login attempts followed by successful access
Network Indicators:
- Unusual outbound connections from device
- Requests to malicious domains in web traffic
SIEM Query:
source="RUGGEDCOM" AND (event_type="config_change" OR event_type="cli_command") | stats count by user, src_ip