CVE-2024-22066
📋 TL;DR
CVE-2024-22066 is an authentication bypass vulnerability in ZTE ZXR10 ZSR V2 routers that allows authenticated attackers to escalate privileges and access sensitive device information. This affects organizations using these specific ZTE router models. The vulnerability requires attacker authentication but can lead to complete device compromise.
💻 Affected Systems
- ZTE ZXR10 ZSR V2 Intelligent Multi Service Router
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router compromise allowing attacker to reconfigure network routing, intercept traffic, disable security controls, and use the device as a pivot point for further network attacks.
Likely Case
Attacker gains administrative access to the router, extracts configuration data including passwords and network topology, and potentially modifies routing tables or firewall rules.
If Mitigated
Limited information disclosure if proper network segmentation and access controls prevent lateral movement from compromised routers.
🎯 Exploit Status
Exploitation requires authenticated access but appears to be straightforward based on CWE-294 (Authentication Bypass by Capture-replay) classification.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in public advisory; contact ZTE support for specific patched versions
Vendor Advisory: https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/1171513586716225590
Restart Required: Yes
Instructions:
1. Contact ZTE support for security patches. 2. Download appropriate firmware update. 3. Backup current configuration. 4. Apply firmware update via management interface. 5. Reboot router. 6. Restore configuration if needed. 7. Verify patch application.
🔧 Temporary Workarounds
Restrict Management Access
allLimit router management interface access to specific trusted IP addresses only
access-list 10 permit 192.168.1.0 0.0.0.255
line vty 0 4
access-class 10 in
Implement Strong Authentication
allEnforce complex passwords and consider implementing RADIUS/TACACS+ authentication
aaa new-model
aaa authentication login default group tacacs+ local
tacacs-server host 192.168.1.100
🧯 If You Can't Patch
- Isolate affected routers in dedicated VLANs with strict firewall rules limiting traffic to/from these devices
- Implement network monitoring and anomaly detection specifically for router management traffic patterns
🔍 How to Verify
Check if Vulnerable:
Check router firmware version and compare against ZTE's patched versions. Contact ZTE support for vulnerability assessment.Check Version:
show versionVerify Fix Applied:
Verify firmware version matches ZTE's patched release and test authentication/authorization controls.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login with privilege escalation
- Unusual configuration changes from non-admin accounts
- Access to sensitive configuration commands from low-privilege users
Network Indicators:
- Unusual management protocol traffic patterns
- Configuration downloads from unexpected sources
- Authentication requests from unexpected IP addresses
SIEM Query:
source="router_logs" (event_type="authentication" AND result="success") AND user!="admin" FOLLOWED BY event_type="configuration_change" WITHIN 5m