CVE-2024-38207
📋 TL;DR
This vulnerability in Microsoft Edge allows attackers to execute arbitrary code by exploiting memory corruption through specially crafted HTML content. It affects users running vulnerable versions of Microsoft Edge on Windows systems. Successful exploitation requires user interaction such as visiting a malicious website.
💻 Affected Systems
- Microsoft Edge
📦 What is this software?
Edge Chromium by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the current user, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Browser crash or limited code execution within the browser sandbox, potentially stealing session cookies or credentials.
If Mitigated
Browser crash with no code execution due to sandbox protections and modern exploit mitigations.
🎯 Exploit Status
Exploitation requires bypassing modern browser security mitigations like ASLR and DEP, but memory corruption vulnerabilities are frequently weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Microsoft Edge security update released in July 2024
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38207
Restart Required: Yes
Instructions:
1. Open Microsoft Edge. 2. Click Settings (three dots) > Help and feedback > About Microsoft Edge. 3. Browser will automatically check for and install updates. 4. Restart Edge when prompted.
🔧 Temporary Workarounds
Disable JavaScript
windowsPrevents execution of malicious JavaScript that could trigger the vulnerability
Use Enhanced Security Mode
windowsEnables additional browser security protections
🧯 If You Can't Patch
- Restrict browsing to trusted websites only
- Implement application whitelisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Edge version: Open Edge > Settings > About Microsoft Edge. If version is older than July 2024 security update, system is vulnerable.Check Version:
Start Edge and navigate to edge://settings/help or check in Settings > About Microsoft EdgeVerify Fix Applied:
Verify Edge has updated to version 124.0.2478.51 or later (exact version may vary by OS).📡 Detection & Monitoring
Log Indicators:
- Edge crash reports with memory access violations
- Unexpected Edge process termination events
Network Indicators:
- Connections to known malicious domains serving HTML content
- Unusual outbound connections from Edge process
SIEM Query:
EventID=1000 OR EventID=1001 Source=Application Error Process Name=msedge.exe