CVE-2018-4029
📋 TL;DR
This vulnerability allows remote code execution on Anker Roav A1 Dashcams via specially crafted HTTP packets. Attackers can write arbitrary data to memory and execute malicious code. Only users of the specific dashcam model with vulnerable firmware are affected.
💻 Affected Systems
- Anker Roav A1 Dashcam
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of dashcam allowing attacker to disable recording, access stored footage, use device as network pivot, or brick device.
Likely Case
Unauthorized access to dashcam functions and stored video data, potential for device manipulation.
If Mitigated
Limited impact if device is isolated from untrusted networks and firmware is updated.
🎯 Exploit Status
Exploit requires crafting specific HTTP packets but no authentication needed. Technical details published in Talos report.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Later than RoavA1SWV1.9
Vendor Advisory: https://talosintelligence.com/vulnerability_reports/TALOS-2018-0701
Restart Required: Yes
Instructions:
1. Check current firmware version in dashcam settings. 2. Download latest firmware from Anker support site. 3. Copy firmware file to dashcam SD card. 4. Power cycle dashcam to trigger update. 5. Verify new firmware version.
🔧 Temporary Workarounds
Network Isolation
allPrevent dashcam from connecting to untrusted networks
Firewall Rules
linuxBlock HTTP access to dashcam from untrusted sources
iptables -A INPUT -p tcp --dport 80 -s 192.168.1.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Disconnect dashcam from all networks and use only as standalone recording device
- Place dashcam behind strict firewall allowing only necessary outbound connections
🔍 How to Verify
Check if Vulnerable:
Check firmware version in dashcam settings menu - if version is RoavA1SWV1.9, device is vulnerable.Check Version:
Check via dashcam LCD menu: Settings > System > Firmware VersionVerify Fix Applied:
Verify firmware version is newer than RoavA1SWV1.9 in dashcam settings.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to dashcam
- Multiple malformed HTTP packets from single source
Network Indicators:
- HTTP traffic to dashcam port 80 with unusual patterns
- Traffic containing exploit signatures from Talos report
SIEM Query:
source_ip="*" AND dest_port=80 AND (http_request CONTAINS "malformed" OR http_request LENGTH > 1024)