CVE-2024-57023

6.8 MEDIUM

📋 TL;DR

This CVE describes an OS command injection vulnerability in TOTOLINK X5000R routers where an attacker can execute arbitrary commands via the 'week' parameter in the setWiFiScheduleCfg function. This affects users of TOTOLINK X5000R routers running vulnerable firmware versions, potentially allowing attackers to gain control of the device.

💻 Affected Systems

Products:
  • TOTOLINK X5000R
Versions: V9.1.0cu.2350_B20230313
Operating Systems: Embedded Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the specific firmware version mentioned; other versions may also be vulnerable but unconfirmed.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full compromise of the router leading to network infiltration, data exfiltration, and use as a pivot point for attacking other devices on the network.

🟠

Likely Case

Unauthorized command execution on the router, potentially enabling configuration changes, service disruption, or credential theft.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls preventing exploitation attempts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authentication to the router's web interface; command injection is straightforward once authenticated.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

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

Restart Required: Yes

Instructions:

Check TOTOLINK website for firmware updates; download and install latest firmware via web interface; reboot router after update.

🔧 Temporary Workarounds

Disable WiFi Schedule Feature

all

Remove or disable the setWiFiScheduleCfg functionality to prevent exploitation.

Restrict Web Interface Access

all

Limit access to router's admin interface to trusted IP addresses only.

🧯 If You Can't Patch

  • Segment router on isolated network segment
  • Implement strict firewall rules to limit router communication

🔍 How to Verify

Check if Vulnerable:

Check router firmware version via web interface; if version matches affected range, assume vulnerable.

Check Version:

Login to router web interface and check System Status or Firmware Update page.

Verify Fix Applied:

Verify firmware version has been updated to a version later than V9.1.0cu.2350_B20230313.

📡 Detection & Monitoring

Log Indicators:

  • Unusual commands in system logs
  • Multiple failed authentication attempts followed by setWiFiScheduleCfg requests

Network Indicators:

  • Unexpected outbound connections from router
  • Anomalous traffic patterns from router IP

SIEM Query:

source="router_logs" AND (event="setWiFiScheduleCfg" OR command="*;*" OR command="*|*")

🔗 References

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