CVE-2024-46041

8.8 HIGH

📋 TL;DR

The IoT Haat Smart Plug IH-IN-16A-S v5.16.1 has an authentication bypass vulnerability where attackers can replay captured authentication data to gain unauthorized access. This affects users of this specific smart plug model who haven't updated to a patched version. Attackers could potentially control the smart plug remotely without proper credentials.

💻 Affected Systems

Products:
  • IoT Haat Smart Plug IH-IN-16A-S
Versions: v5.16.1
Operating Systems: Embedded firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the specific model and version listed; other IoT Haat products may not be vulnerable.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers gain full control of smart plugs, enabling them to turn devices on/off arbitrarily, potentially causing electrical fires, equipment damage, or using the plugs as entry points into home networks.

🟠

Likely Case

Unauthorized users gain control of smart plugs, enabling them to turn connected devices on/off, monitor usage patterns, and potentially access the local network if the plug has network bridging capabilities.

🟢

If Mitigated

With proper network segmentation and monitoring, impact is limited to control of individual smart plugs without network lateral movement.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The GitHub reference suggests proof-of-concept code exists; capture-replay attacks are relatively simple to execute with network sniffing tools.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://www.iothaat.com/

Restart Required: No

Instructions:

1. Check vendor website for firmware updates
2. If update available, download and apply via mobile app
3. Verify firmware version after update

🔧 Temporary Workarounds

Network Segmentation

all

Isolate smart plugs on separate VLAN or network segment to limit attack surface

Disable Remote Access

all

Turn off cloud/remote access features if not required

🧯 If You Can't Patch

  • Physically disconnect smart plugs from power when not in use
  • Place smart plugs behind firewall with strict inbound/outbound rules

🔍 How to Verify

Check if Vulnerable:

Check firmware version in IoT Haat mobile app; if version is v5.16.1, device is vulnerable

Check Version:

Check via IoT Haat mobile app settings

Verify Fix Applied:

Verify firmware version has changed from v5.16.1 in mobile app

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed authentication attempts followed by successful access
  • Authentication requests with identical timestamps or patterns

Network Indicators:

  • Repeated identical authentication packets
  • Unusual traffic patterns to/from smart plug IP addresses

SIEM Query:

source="smart_plug_logs" AND (event_type="auth" AND count>5) WITHIN 1m

🔗 References

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