CVE-2024-4965
📋 TL;DR
This CVE describes a critical OS command injection vulnerability in D-Link DAR-7000-40 network devices. Attackers can remotely execute arbitrary commands by manipulating the 'load' parameter in the /useratte/resmanage.php file. Only end-of-life DAR-7000-40 devices running specific firmware are affected, and the vendor provides no security updates.
💻 Affected Systems
- D-Link DAR-7000-40
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install persistent backdoors, exfiltrate sensitive data, pivot to internal networks, or render the device inoperable.
Likely Case
Remote code execution leading to device takeover, credential harvesting, network reconnaissance, or use as a foothold for lateral movement.
If Mitigated
Limited impact if device is isolated, monitored, and has restricted network access, though exploitation remains possible.
🎯 Exploit Status
Public exploit details are available in GitHub repository. Attack requires no authentication and has low technical complexity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None
Vendor Advisory: https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10354
Restart Required: No
Instructions:
No official patch exists. The vendor confirms the product is end-of-life and recommends immediate replacement.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices from internet and restrict internal network access to minimize attack surface.
Access Control Lists
allImplement firewall rules to block external access to the vulnerable endpoint (/useratte/resmanage.php).
🧯 If You Can't Patch
- Immediately replace affected devices with supported hardware.
- If replacement is delayed, isolate devices in a dedicated VLAN with strict egress filtering and enhanced monitoring.
🔍 How to Verify
Check if Vulnerable:
Check device model and firmware version via web interface or CLI. If device is DAR-7000-40 running V31R02B1413C, it is vulnerable.Check Version:
Check via web interface at System Status or use CLI command 'show version' if available.Verify Fix Applied:
No fix exists to verify. Replacement with non-vulnerable hardware is the only solution.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /useratte/resmanage.php with suspicious parameters
- Unexpected system command execution in device logs
- Failed authentication attempts followed by successful exploitation
Network Indicators:
- HTTP requests containing shell metacharacters in 'load' parameter
- Outbound connections from device to unknown external IPs
- Unusual traffic patterns from device management interface
SIEM Query:
source="dlink_device" AND (url="/useratte/resmanage.php" AND (param="load" AND value CONTAINS "|" OR value CONTAINS ";" OR value CONTAINS "`"))🔗 References
- https://github.com/h0e4a0r1t/h0e4a0r1t.github.io/blob/master/2024/%3CWHB%7Cj%5CIbSU0m4%3A_/D-LINK-DAR-7000_RCE_%20resmanage.php.pdf
- https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10354
- https://vuldb.com/?ctiid.264533
- https://vuldb.com/?id.264533
- https://vuldb.com/?submit.333784
- https://github.com/h0e4a0r1t/h0e4a0r1t.github.io/blob/master/2024/%3CWHB%7Cj%5CIbSU0m4%3A_/D-LINK-DAR-7000_RCE_%20resmanage.php.pdf
- https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10354
- https://vuldb.com/?ctiid.264533
- https://vuldb.com/?id.264533
- https://vuldb.com/?submit.333784
