CVE-2024-48776
📋 TL;DR
A vulnerability in Shelly com.home.shelly 1.0.4 allows remote attackers to access sensitive information through the firmware update process. This affects users of the Shelly home automation system who haven't updated their devices. Attackers can potentially retrieve confidential data without authentication.
💻 Affected Systems
- Shelly com.home.shelly
⚠️ 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
Attackers obtain device credentials, configuration data, or encryption keys, leading to complete device compromise, unauthorized control of smart home devices, or lateral movement within the network.
Likely Case
Attackers retrieve device identifiers, network configurations, or limited system information that could facilitate further attacks or reconnaissance.
If Mitigated
With proper network segmentation and access controls, attackers can only access limited information without gaining further network access.
🎯 Exploit Status
The GitHub reference contains detailed exploitation information. The vulnerability involves intercepting or manipulating firmware update requests to extract sensitive data.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check Shelly official channels for updates. Update the Shelly mobile app when a patched version becomes available. Update firmware on Shelly devices if applicable.
🔧 Temporary Workarounds
Disable automatic firmware updates
allPrevent the vulnerable update process from running automatically
Network segmentation
allIsolate Shelly devices and mobile app from untrusted networks
🧯 If You Can't Patch
- Restrict network access to Shelly devices and mobile app to trusted networks only
- Monitor network traffic for unusual firmware update requests or data exfiltration
🔍 How to Verify
Check if Vulnerable:
Check if using Shelly com.home.shelly version 1.0.4 on mobile device. Review app settings for firmware update functionality.Check Version:
On mobile device: App Settings > About or check app store for version informationVerify Fix Applied:
Update to a version later than 1.0.4 when available. Verify firmware update process no longer exposes sensitive information.📡 Detection & Monitoring
Log Indicators:
- Unusual firmware update requests
- Unexpected data transfers during update process
- Failed update attempts from unknown sources
Network Indicators:
- HTTP/HTTPS requests to firmware update endpoints containing sensitive data
- Unencrypted transmission of device information
SIEM Query:
source="shelly_app" AND (event="firmware_update" OR url="*firmware*" OR data_transfer>100KB)