CVE-2024-57013

8.8 HIGH

📋 TL;DR

This CVE describes an OS command injection vulnerability in TOTOLINK X5000R routers where attackers can execute arbitrary commands via the 'switch' parameter in the setScheduleCfg function. This allows remote code execution with the privileges of the web interface service. All users of affected TOTOLINK X5000R router versions are vulnerable.

💻 Affected Systems

Products:
  • TOTOLINK X5000R
Versions: V9.1.0cu.2350_B20230313
Operating Systems: Embedded Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in the web management interface's setScheduleCfg functionality.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the router allowing attackers to install persistent backdoors, intercept network traffic, pivot to internal networks, or use the device for botnet activities.

🟠

Likely Case

Attackers gain shell access to the router, modify configurations, steal credentials, or use the device as a foothold for further network attacks.

🟢

If Mitigated

If proper network segmentation and access controls are in place, impact may be limited to the router itself without lateral movement.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires access to the web interface, though authentication status is unclear from available information.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor for latest firmware version

Vendor Advisory: https://www.totolink.net/

Restart Required: Yes

Instructions:

1. Log into TOTOLINK router web interface. 2. Navigate to System Tools > Firmware Upgrade. 3. Download latest firmware from vendor site. 4. Upload and apply firmware update. 5. Reboot router after update completes.

🔧 Temporary Workarounds

Disable Remote Management

all

Prevent external access to the vulnerable web interface

Network Segmentation

all

Isolate router management interface from untrusted networks

🧯 If You Can't Patch

  • Implement strict firewall rules to limit access to router management interface
  • Monitor for suspicious command execution attempts in router logs

🔍 How to Verify

Check if Vulnerable:

Check router firmware version via web interface: System Status > Device Info

Check Version:

Login to router web interface and navigate to System Status > Device Info

Verify Fix Applied:

Verify firmware version is newer than V9.1.0cu.2350_B20230313

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in router logs
  • Multiple failed authentication attempts to web interface
  • Suspicious POST requests to setScheduleCfg endpoint

Network Indicators:

  • Unusual outbound connections from router
  • Traffic patterns indicating command and control activity
  • Port scanning originating from router

SIEM Query:

source="router_logs" AND ("setScheduleCfg" OR "command injection" OR suspicious shell commands)

🔗 References

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