CVE-2024-7824

9.8 CRITICAL

📋 TL;DR

A type confusion vulnerability in Webroot SecureAnywhere's Web Shield component allows attackers to misuse functionality by accessing resources with incompatible types. This affects all Webroot SecureAnywhere users with Web Shield enabled on Windows systems. The vulnerability could lead to arbitrary code execution or system compromise.

💻 Affected Systems

Products:
  • Webroot SecureAnywhere - Web Shield
Versions: All versions before 2.1.2.3
Operating Systems: Windows (32-bit, 64-bit, ARM)
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems with Web Shield component enabled. The wrUrl.Dll module is specifically vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with remote code execution, allowing attackers to install malware, steal data, or create persistent backdoors.

🟠

Likely Case

Local privilege escalation or denial of service through Web Shield component manipulation.

🟢

If Mitigated

Limited impact if Web Shield is disabled or systems are isolated, though this reduces security functionality.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Type confusion vulnerabilities typically require specific conditions to trigger but can be exploited via crafted network traffic or local access.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.1.2.3 or later

Vendor Advisory: https://answers.webroot.com/Webroot/ukp.aspx?pid=12&app=vw&vw=1&login=1&json=1&solutionid=4275

Restart Required: Yes

Instructions:

1. Open Webroot SecureAnywhere console. 2. Check for updates in settings. 3. Apply update to version 2.1.2.3 or higher. 4. Restart system to complete installation.

🔧 Temporary Workarounds

Disable Web Shield temporarily

windows

Temporarily disable the vulnerable Web Shield component until patching is possible

Open Webroot console → Settings → Real-time Shields → Toggle 'Web Shield' to OFF

🧯 If You Can't Patch

  • Isolate affected systems from untrusted networks
  • Implement application allowlisting to prevent execution of unauthorized binaries

🔍 How to Verify

Check if Vulnerable:

Check Webroot SecureAnywhere version in the application interface or via Windows Programs and Features

Check Version:

wmic product where name="Webroot SecureAnywhere" get version

Verify Fix Applied:

Verify version is 2.1.2.3 or higher in Webroot console

📡 Detection & Monitoring

Log Indicators:

  • Unusual Webroot process crashes
  • Access violations in wrUrl.Dll
  • Web Shield service restarts

Network Indicators:

  • Unexpected outbound connections from Webroot processes
  • Traffic to suspicious domains blocked by Web Shield

SIEM Query:

source="Webroot" AND (event_id="1000" OR event_id="1001") AND process_name="wrUrl.Dll"

🔗 References

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