CVE-2024-23973
📋 TL;DR
This is a buffer overflow vulnerability in Silicon Labs Gecko OS that allows network-adjacent attackers to execute arbitrary code without authentication by sending specially crafted HTTP GET requests. The vulnerability affects devices running vulnerable versions of Gecko OS that have HTTP services enabled.
💻 Affected Systems
- Silicon Labs Gecko OS
📦 What is this software?
Gecko Os by Silabs
⚠️ 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
Full device compromise allowing attackers to execute arbitrary code, potentially leading to complete control of the device, data theft, or using the device as a foothold for lateral movement.
Likely Case
Remote code execution leading to device compromise, service disruption, or installation of malware/persistence mechanisms.
If Mitigated
Limited impact if proper network segmentation and access controls prevent network-adjacent attackers from reaching vulnerable devices.
🎯 Exploit Status
Exploitation requires network adjacency and crafting of malicious HTTP GET requests. No authentication required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not explicitly stated in references, but vendor advisory should specify
Vendor Advisory: https://community.silabs.com/a45Vm0000000Atp
Restart Required: No
Instructions:
1. Check vendor advisory for specific patched version. 2. Update Gecko OS to latest patched version. 3. Verify update was successful.
🔧 Temporary Workarounds
Disable HTTP Services
allDisable HTTP services on affected devices if not required for functionality
Configuration specific to device - consult Gecko OS documentation
Network Segmentation
allImplement strict network segmentation to limit access to vulnerable devices
🧯 If You Can't Patch
- Implement strict network access controls to limit which devices can communicate with vulnerable systems
- Deploy network-based intrusion detection/prevention systems to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Gecko OS version against vendor advisory. If running vulnerable version with HTTP services enabled, device is vulnerable.Check Version:
Device-specific command to check Gecko OS version (consult device documentation)Verify Fix Applied:
Verify Gecko OS version has been updated to patched version specified in vendor advisory📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP GET requests with long parameters
- Device crashes or restarts
- Unexpected process execution
Network Indicators:
- HTTP GET requests with unusually long parameters to Gecko OS devices
- Traffic patterns suggesting buffer overflow attempts
SIEM Query:
source="gecko_os_logs" AND (http_method="GET" AND (uri_length>threshold OR parameter_length>threshold))