CVE-2024-41315
📋 TL;DR
This CVE describes a command injection vulnerability in TOTOLINK A6000R routers that allows attackers to execute arbitrary commands on the device. The vulnerability exists in the apcli_do_enr_pin_wps function via the ifname parameter. Users of affected TOTOLINK A6000R routers with vulnerable firmware are at risk.
💻 Affected Systems
- TOTOLINK A6000R
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to install persistent backdoors, intercept network traffic, pivot to internal networks, or brick the device.
Likely Case
Unauthenticated remote code execution leading to device takeover, credential theft, or participation in botnets.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access and proper network segmentation.
🎯 Exploit Status
Proof-of-concept code is publicly available in GitHub repositories, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check TOTOLINK official website for firmware updates. 2. Download latest firmware. 3. Access router admin interface. 4. Navigate to firmware upgrade section. 5. Upload and apply new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Disable WPS functionality
allDisable Wi-Fi Protected Setup (WPS) feature to remove attack vector
Network isolation
allPlace router behind firewall with strict inbound rules
🧯 If You Can't Patch
- Replace affected device with different model/vendor
- Implement strict network segmentation to isolate router from critical assets
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface; if version is V1.0.1-B20201211.2000, device is vulnerable.Check Version:
Login to router admin interface and check System Status or Firmware Information page.Verify Fix Applied:
Verify firmware version has been updated to a version later than V1.0.1-B20201211.2000.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed WPS connection attempts
- Suspicious ifname parameter values
Network Indicators:
- Unexpected outbound connections from router
- Unusual traffic patterns to/from router management interface
SIEM Query:
source="router_logs" AND (message="*apcli_do_enr_pin_wps*" OR message="*ifname*" AND message="*;*" OR message="*|*" OR message="*`*" OR message="*$(*")🔗 References
- https://gist.github.com/yanggao017/add8d85589614d09e3e8ccb1fb335f64
- https://github.com/yanggao017/vuln/blob/main/TOTOLINK/A6000R/CI_4_apcli_do_enr_pin_wps/README.md
- https://gist.github.com/yanggao017/add8d85589614d09e3e8ccb1fb335f64
- https://github.com/yanggao017/vuln/blob/main/TOTOLINK/A6000R/CI_4_apcli_do_enr_pin_wps/README.md
