CVE-2020-10210
📋 TL;DR
This vulnerability allows remote attackers to gain root access to affected Amino Communications set-top boxes via SSH using hard-coded cryptographic keys. All devices in the listed series with default configurations are vulnerable. This affects customers using these devices, particularly in ISP deployments.
💻 Affected Systems
- Amino Communications AK45x series
- AK5xx series
- AK65x series
- Aria6xx series
- Aria7/AK7Xx series
- Kami7B
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the device with root privileges, allowing installation of persistent malware, data exfiltration, or use as a pivot point into internal networks.
Likely Case
Remote attackers gaining root shell access to vulnerable devices, potentially modifying configurations, stealing data, or using devices for botnet activities.
If Mitigated
Limited impact if SSH access is blocked at network boundaries or devices are not internet-facing.
🎯 Exploit Status
Exploitation is trivial - attackers only need to use the publicly known hard-coded SSH keys to authenticate.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not publicly available
Restart Required: No
Instructions:
No official patch available. Contact Amino Communications for firmware updates or replacement options.
🔧 Temporary Workarounds
Block SSH Access
linuxPrevent SSH connections to affected devices using network controls
iptables -A INPUT -p tcp --dport 22 -j DROP
ufw deny 22
Network Segmentation
allIsolate affected devices in separate VLANs with strict access controls
🧯 If You Can't Patch
- Replace affected devices with models that don't have hard-coded credentials
- Implement strict network segmentation and firewall rules to block all SSH access to these devices
🔍 How to Verify
Check if Vulnerable:
Attempt SSH connection to port 22 of device using known hard-coded keys. If connection succeeds, device is vulnerable.Check Version:
ssh -i known_hardcoded_key root@device_ip 'cat /etc/version'Verify Fix Applied:
Verify SSH connections are blocked or fail authentication. Check that known hard-coded keys no longer work.📡 Detection & Monitoring
Log Indicators:
- Failed SSH authentication attempts
- Successful SSH logins from unexpected sources
- Root user SSH sessions
Network Indicators:
- SSH connections to port 22 from external IPs
- Multiple SSH attempts to same device
SIEM Query:
source="ssh.log" (event="Accepted publickey" OR event="Failed publickey") AND user="root"