CVE-2024-37606 – A stack overflow vulnerability in D-Link DCS-93... (How to Fix)

Q: What is the severity of CVE-2024-37606?

CVE-2024-37606 has a CVSS score of 6.5 (MEDIUM). A stack overflow vulnerability in D-Link DCS-932L IP cameras allows attackers to cause denial of service via specially crafted HTTP requests. This affects DCS-932L REVB devices running firmware version 2.18.01. Attackers can crash the camera's web service, making it temporarily unavailable.

📋 TL;DR

A stack overflow vulnerability in D-Link DCS-932L IP cameras allows attackers to cause denial of service via specially crafted HTTP requests. This affects DCS-932L REVB devices running firmware version 2.18.01. Attackers can crash the camera's web service, making it temporarily unavailable.

💻 Affected Systems

Products:

D-Link DCS-932L REVB

Versions: Firmware version 2.18.01

Operating Systems: Embedded Linux

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects the REVB hardware revision. Older revisions may not be vulnerable.

📦 What is this software?

Dcs 932l Firmware by Dlink

View all CVEs affecting Dcs 932l Firmware →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device crash requiring physical power cycle, potentially leading to extended surveillance downtime.

🟠

Likely Case

Temporary denial of service where the web interface becomes unresponsive until the device automatically restarts.

🟢

If Mitigated

Minimal impact with proper network segmentation and monitoring in place.

🌐 Internet-Facing: HIGH - These cameras are often exposed to the internet for remote access, making them easily targetable.

🏢 Internal Only: MEDIUM - Still vulnerable to internal attackers or malware, but attack surface is reduced.

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

The vulnerability requires sending a crafted HTTP request to the web interface. No authentication is needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check D-Link support for latest firmware

Vendor Advisory: https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10247

Restart Required: Yes

Instructions:

1. Download latest firmware from D-Link support site. 2. Log into camera web interface. 3. Navigate to Setup > Maintenance > Firmware Upgrade. 4. Upload and install new firmware. 5. Camera will reboot automatically.

🔧 Temporary Workarounds

Network Segmentation

all

Place cameras on isolated VLAN with restricted access

Access Control Lists

all

Restrict HTTP access to camera management interface

🧯 If You Can't Patch

Remove internet-facing access and require VPN for remote management
Implement rate limiting on HTTP requests to the camera

🔍 How to Verify

Check if Vulnerable:

Check firmware version in web interface: Setup > Maintenance > Firmware

Check Version:

curl -s http://[camera-ip]/cgi-bin/firmware.cgi | grep version

Verify Fix Applied:

Verify firmware version is updated beyond 2.18.01

📡 Detection & Monitoring

Log Indicators:

Multiple HTTP requests with abnormal length or patterns
Web service crash/restart logs

Network Indicators:

Unusually long HTTP requests to camera management port
Multiple connection attempts from single source

SIEM Query:

source="camera-logs" AND (http_request_length>10000 OR http_status=500)

📊 Metadata

CVE ID: CVE-2024-37606

CVSS v3 Score: 6.5 (MEDIUM)

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE: CWE-120

Published: December 17, 2024

Last Updated: May 21, 2025

🔗 References

https://docs.google.com/document/d/1qWJh2jgEhmyeW3OefMQNsrlKdATMSU6Twjkk1p3qfAs/edit?usp=sharing Permissions Required
https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10247 Vendor Advisory
https://www.dlink.com/en Product
https://www.dlink.com/en/security-bulletin/ Product

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🔗 Related Vulnerabilities

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