CVE-2024-31977
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary operating system commands on Adtran 834-5 devices by injecting shell metacharacters into the Ping or Traceroute utility. Attackers can gain full control of affected devices, potentially compromising network infrastructure. Organizations using Adtran 834-5 devices with vulnerable firmware versions are affected.
💻 Affected Systems
- Adtran 834-5 Service Delivery Gateway
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise leading to network infiltration, data exfiltration, lateral movement to other systems, and persistent backdoor installation.
Likely Case
Unauthorized command execution allowing device configuration changes, credential harvesting, and network reconnaissance.
If Mitigated
Limited impact with proper network segmentation and access controls, potentially only affecting the specific device.
🎯 Exploit Status
Exploitation requires access to the device's web interface but does not require authentication if the interface is exposed without proper access controls. Public proof-of-concept code is available in GitHub repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SmartOS Version 12.6.3.1 or later
Vendor Advisory: https://supportcommunity.adtran.com/t5/Security-Advisories/ADTSA-2024001-Multiple-vulnerabilities-in-Service-Delivery-Gateway-products/ta-p/39332
Restart Required: Yes
Instructions:
1. Download SmartOS Version 12.6.3.1 or later from Adtran support portal. 2. Backup current device configuration. 3. Upload and install the new firmware via the web interface or CLI. 4. Reboot the device. 5. Verify the firmware version after reboot.
🔧 Temporary Workarounds
Restrict Access to Management Interface
allLimit access to the device's web management interface to trusted IP addresses only.
Configure firewall rules to restrict access to port 80/443 on the device to authorized management networks only.
Disable Unnecessary Diagnostic Features
allDisable Ping and Traceroute utilities in the web interface if not required for operations.
Access device web interface > System > Diagnostics > Disable Ping/Traceroute utilities
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices from critical network segments
- Enable detailed logging and monitoring for suspicious command execution attempts on the devices
🔍 How to Verify
Check if Vulnerable:
Check the device firmware version via web interface (System > About) or CLI command 'show version' and compare against vulnerable versions.Check Version:
show versionVerify Fix Applied:
After patching, verify the firmware version shows 12.6.3.1 or later and test that shell metacharacters in Ping/Traceroute fields no longer execute commands.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by Ping/Traceroute requests
- Suspicious commands in diagnostic utility logs
Network Indicators:
- Unusual outbound connections from the device
- Traffic patterns indicating command and control communication
- Unexpected network scans originating from the device
SIEM Query:
source="adtran_device" AND (event_type="command_execution" OR diagnostic_tool="ping" OR diagnostic_tool="traceroute") AND command="*;*" OR command="*|*" OR command="*`*"🔗 References
- https://drive.proton.me/urls/GXDM5T5NSG#RHa0yVWSKyoz
- https://github.com/actuator/cve/blob/main/AdTran/CVE-2024-31977
- https://github.com/actuator/cve/tree/main/AdTran/834-5
- https://supportcommunity.adtran.com/t5/Security-Advisories/ADTSA-2024001-Multiple-vulnerabilities-in-Service-Delivery-Gateway-products/ta-p/39332
- https://drive.proton.me/urls/GXDM5T5NSG#RHa0yVWSKyoz
- https://github.com/actuator/cve/blob/main/AdTran/CVE-2024-31977
- https://github.com/actuator/cve/tree/main/AdTran/834-5
