CVE-2020-6874
📋 TL;DR
This vulnerability in ZTE ZXIPTV products involves improper implementation of cryptographic algorithms, allowing remote attackers to perform account credential enumeration or brute-force password guessing attacks. It affects ZXIPTV and ZXIPTV-WEB-PV5.09.08.04 systems. Attackers can exploit weak encryption to compromise user accounts.
💻 Affected Systems
- ZXIPTV
- ZXIPTV-WEB-PV5.09.08.04
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through administrative account takeover, leading to data theft, service disruption, or deployment of additional malware.
Likely Case
Unauthorized access to user accounts, potential credential theft, and lateral movement within the network.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.
🎯 Exploit Status
Exploitation requires network access to the vulnerable service but no authentication. Attack tools for credential enumeration are commonly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Contact ZTE for updated firmware
Vendor Advisory: http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1013463
Restart Required: Yes
Instructions:
1. Contact ZTE support for updated firmware. 2. Backup configuration. 3. Apply firmware update. 4. Restart system. 5. Verify fix.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks
Access Control Restrictions
linuxLimit access to vulnerable interfaces using firewall rules
iptables -A INPUT -p tcp --dport [web_port] -s [trusted_ips] -j ACCEPT
iptables -A INPUT -p tcp --dport [web_port] -j DROP
🧯 If You Can't Patch
- Implement strong password policies and account lockout mechanisms
- Deploy network monitoring and intrusion detection for authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check system version via web interface or CLI. If running PV5.09.08.04 or earlier, assume vulnerable.Check Version:
Check via web interface admin panel or consult ZTE documentation for CLI commandsVerify Fix Applied:
Verify updated firmware version and test authentication mechanisms for proper encryption.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts from single IP
- Unusual authentication patterns
- Account lockout events
Network Indicators:
- High volume of authentication requests to IPTV web interface
- Traffic patterns suggesting credential enumeration
SIEM Query:
source="iptv_logs" AND (event_type="auth_failure" COUNT BY src_ip > 10)