CVE-2022-1133
📋 TL;DR
This is a use-after-free vulnerability in Chrome's WebRTC Perf component that allows remote attackers to potentially exploit heap corruption. Attackers can trigger this vulnerability by tricking users into visiting a malicious HTML page, potentially leading to arbitrary code execution. All Chrome users prior to version 100.0.4896.60 are affected.
💻 Affected Systems
- Google Chrome
- Chromium-based browsers
📦 What is this software?
Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
Learn more about Chrome →⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the same privileges as the Chrome process, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Browser crash (denial of service) or limited code execution within the browser sandbox, potentially enabling data exfiltration or further exploitation.
If Mitigated
No impact if Chrome is fully patched or if exploit attempts are blocked by security controls.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious page) but no authentication. Use-after-free vulnerabilities in Chrome's renderer process are commonly exploited.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 100.0.4896.60 and later
Vendor Advisory: https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop_29.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu. 3. Go to Help > About Google Chrome. 4. Chrome will automatically check for and install updates. 5. Click 'Relaunch' to restart Chrome with the update.
🔧 Temporary Workarounds
Disable WebRTC
allDisable WebRTC functionality which may prevent exploitation but breaks video/audio calling features.
chrome://flags/#disable-webrtc
Set to 'Disabled'
Use Chrome Enterprise policies
allDeploy Chrome updates via enterprise management tools.
For Windows: Use Group Policy templates
For macOS: Use managed preferences
For Linux: Use package manager
🧯 If You Can't Patch
- Restrict web browsing to trusted sites only using web filtering solutions.
- Deploy application control to prevent execution of malicious payloads that might result from exploitation.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: If version is less than 100.0.4896.60, system is vulnerable.Check Version:
chrome://version/ or 'google-chrome --version' on command lineVerify Fix Applied:
Confirm Chrome version is 100.0.4896.60 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with WebRTC-related stack traces
- Unexpected Chrome process termination
Network Indicators:
- Requests to suspicious domains immediately before Chrome crashes
- Unusual outbound connections from Chrome process
SIEM Query:
process_name:"chrome.exe" AND (event_id:1000 OR event_id:1001) AND message:"WebRTC" OR process_name:"chrome" AND termination_reason:"crash"🔗 References
- https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop_29.html
- https://crbug.com/1305776
- https://security.gentoo.org/glsa/202208-25
- https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop_29.html
- https://crbug.com/1305776
- https://security.gentoo.org/glsa/202208-25
