CVE-2016-10182

9.8 CRITICAL

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary commands on D-Link DWR-932B routers by injecting commands with backtick characters in the qmiweb interface. It affects all users of this specific router model who haven't applied patches or workarounds.

💻 Affected Systems

Products:
  • D-Link DWR-932B LTE Router
Versions: All firmware versions prior to patched releases
Operating Systems: Embedded Linux-based router OS
Default Config Vulnerable: ⚠️ Yes
Notes: The qmiweb interface is typically enabled by default for management.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the router allowing attackers to intercept all network traffic, modify DNS settings, install persistent malware, and pivot to internal network devices.

🟠

Likely Case

Router takeover leading to credential theft, man-in-the-middle attacks, and botnet recruitment.

🟢

If Mitigated

No impact if router is patched or isolated from untrusted networks.

🌐 Internet-Facing: HIGH - Routers are typically internet-facing devices directly accessible from WAN interfaces.
🏢 Internal Only: MEDIUM - Could be exploited from internal networks if attacker gains initial access.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Public exploit code exists and requires minimal technical skill to execute.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check D-Link support for latest firmware

Vendor Advisory: https://support.dlink.com/

Restart Required: Yes

Instructions:

1. Visit D-Link support site. 2. Download latest firmware for DWR-932B. 3. Log into router admin interface. 4. Navigate to firmware update section. 5. Upload and apply new firmware. 6. Reboot router.

🔧 Temporary Workarounds

Disable Remote Management

all

Prevents external exploitation by disabling WAN access to admin interface

Network Segmentation

all

Isolate router management interface to trusted network segments only

🧯 If You Can't Patch

  • Replace router with a different model that receives security updates
  • Place router behind a firewall that blocks all inbound traffic to management ports

🔍 How to Verify

Check if Vulnerable:

Check firmware version in router admin interface and compare with latest available from D-Link

Check Version:

Log into router web interface and check System Status or Firmware section

Verify Fix Applied:

Confirm firmware version matches patched release from vendor advisory

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in system logs
  • Multiple failed login attempts followed by successful access
  • Unexpected processes running

Network Indicators:

  • Unusual outbound connections from router
  • DNS hijacking patterns
  • Traffic redirection

SIEM Query:

source="router" AND (command="`*" OR process="unexpected" OR login="success from unusual IP")

🔗 References

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