CVE-2024-4761
📋 TL;DR
This vulnerability is an out-of-bounds write in Chrome's V8 JavaScript engine that allows remote attackers to execute arbitrary code by tricking users into visiting a malicious webpage. It affects all users running Google Chrome versions prior to 124.0.6367.207. The high severity rating indicates successful exploitation could lead to complete system compromise.
💻 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...
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⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise, data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Browser compromise allowing session hijacking, credential theft, and installation of malware on the victim's system.
If Mitigated
Limited impact due to sandboxing and other Chrome security features, potentially resulting in browser crash or limited data exposure.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious page) but no authentication. No public exploit code has been disclosed at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 124.0.6367.207 and later
Vendor Advisory: https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_13.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the patched version.
🔧 Temporary Workarounds
Disable JavaScript
allTemporarily disable JavaScript execution in Chrome to prevent exploitation
chrome://settings/content/javascript → Toggle to 'Blocked'
Use Site Isolation
allEnsure site isolation is enabled for additional protection
chrome://flags/#site-isolation-trial-opt-out → Set to 'Disabled'
🧯 If You Can't Patch
- Restrict web browsing to trusted sites only using browser policies or extensions
- Deploy application whitelisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in About Google Chrome page. If version is below 124.0.6367.207, system is vulnerable.Check Version:
chrome://version/Verify Fix Applied:
Confirm Chrome version is 124.0.6367.207 or higher in About Google Chrome page.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with V8-related errors
- Unexpected process creation from Chrome
- Memory access violation events in system logs
Network Indicators:
- Requests to known malicious domains hosting exploit code
- Unusual outbound connections from Chrome processes
SIEM Query:
source="chrome_logs" AND (event="crash" OR event="access_violation") AND process="chrome.exe"🔗 References
- https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_13.html
- https://issues.chromium.org/issues/339458194
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6G7EYH2JAK5OJPVNC6AXYQ5K7YGYNCDN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NTSN22LNYXMWHVTYNOYQVOY7VDZFHENQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSUWM73ZCXTN62AT2REYQDD5ZKPFMDZD/
- https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_13.html
- https://issues.chromium.org/issues/339458194
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6G7EYH2JAK5OJPVNC6AXYQ5K7YGYNCDN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NTSN22LNYXMWHVTYNOYQVOY7VDZFHENQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSUWM73ZCXTN62AT2REYQDD5ZKPFMDZD/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4761
