CVE-2024-38222
📋 TL;DR
This vulnerability in Microsoft Edge (Chromium-based) allows an attacker to potentially access sensitive information from the browser's memory or processes. It affects users running vulnerable versions of Microsoft Edge on Windows systems.
💻 Affected Systems
- Microsoft Edge (Chromium-based)
📦 What is this software?
Edge by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
An attacker could extract sensitive user data like passwords, cookies, or session tokens from browser memory, potentially leading to account compromise.
Likely Case
Limited information disclosure of non-critical browser data or metadata that could aid in further attacks.
If Mitigated
Minimal impact with proper browser sandboxing and security controls in place.
🎯 Exploit Status
Exploitation requires user interaction (visiting a malicious website) and bypassing browser security mechanisms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Microsoft Edge version 124.0.2478.51 or later
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38222
Restart Required: Yes
Instructions:
1. Open Microsoft Edge. 2. Click the three-dot menu → Help and feedback → About Microsoft Edge. 3. The browser will automatically check for and install updates. 4. Restart Edge when prompted.
🔧 Temporary Workarounds
Disable JavaScript
windowsPrevents exploitation by disabling JavaScript execution, but breaks most websites.
Use Enhanced Security Mode
windowsEnables additional browser security protections that may mitigate exploitation.
🧯 If You Can't Patch
- Restrict access to untrusted websites using browser policies or network filtering.
- Implement application allowlisting to prevent unauthorized browser execution.
🔍 How to Verify
Check if Vulnerable:
Check Edge version in Settings → About Microsoft Edge. If version is below 124.0.2478.51, system is vulnerable.Check Version:
msedge --versionVerify Fix Applied:
Confirm Edge version is 124.0.2478.51 or higher in About Microsoft Edge.📡 Detection & Monitoring
Log Indicators:
- Unusual browser crashes or memory access errors in Windows Event Logs
Network Indicators:
- Suspicious website visits followed by unusual outbound data transfers
SIEM Query:
EventID=1000 OR EventID=1001 SourceName=Application Error ProcessName=msedge.exe