CVE-2022-0290: Google Chrome Use-After-Free Vulnerability

CVE-2022-0290 Overview

CVE-2022-0290 is a use-after-free vulnerability in the Site Isolation component of Google Chrome prior to version 97.0.4692.99. This memory corruption flaw allows a remote attacker to potentially perform a sandbox escape by enticing a victim to visit a specially crafted HTML page. The vulnerability affects Chrome's security boundary enforcement mechanism, which is designed to isolate different web origins into separate processes.

Critical Impact

Successful exploitation of this use-after-free vulnerability could allow attackers to escape the Chrome sandbox, potentially leading to complete system compromise with the ability to execute arbitrary code outside the browser's security constraints.

Affected Products

• Google Chrome versions prior to 97.0.4692.99
• All platforms running vulnerable Chrome versions (Windows, macOS, Linux)
• Chromium-based browsers that have not incorporated the security fix

Discovery Timeline

• January 19, 2022 - Google releases Chrome 97.0.4692.99 with security patch
• February 12, 2022 - CVE-2022-0290 published to NVD
• November 21, 2024 - Last updated in NVD database

Technical Details for CVE-2022-0290

Vulnerability Analysis

This vulnerability exists within Chrome's Site Isolation feature, a critical security mechanism that ensures web content from different sites runs in separate processes. Site Isolation is designed to prevent malicious websites from accessing data from other sites due to same-origin policy enforcement at the process level.

The use-after-free condition (CWE-416) occurs in the RenderFrameHostImpl component, which manages the lifecycle of render frames. When certain operations are performed in a specific sequence involving cross-origin navigation or frame management, a reference to a freed memory object may be retained and subsequently accessed. This dangling pointer condition can be triggered through carefully crafted HTML content.

The vulnerability is particularly severe because it affects the sandbox boundary. Chrome's multi-process architecture isolates renderer processes in sandboxes with limited system access. A sandbox escape allows attacker-controlled code to break out of these restrictions and execute with the privileges of the browser process or even the underlying user account.

Root Cause

The root cause is improper memory management in the RenderFrameHostImpl class within Chrome's content module. When a render frame host object is destroyed during certain navigation scenarios, references to that object are not properly invalidated in all code paths. This creates a condition where subsequent operations attempt to access memory that has already been freed and potentially reallocated for other purposes.

The Site Isolation component's complexity, which involves coordinating between multiple processes and managing frame lifecycles across navigations, contributes to the difficulty of properly tracking object lifetimes. The specific triggering condition involves the interaction between frame detachment, navigation commits, and cross-origin process swaps.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker must convince a victim to visit a malicious webpage containing specially crafted HTML and JavaScript. The malicious page manipulates frame navigation and lifecycle operations to trigger the use-after-free condition.

Once the vulnerability is triggered, the attacker can potentially achieve controlled memory corruption within the renderer process. By carefully manipulating heap layout and the contents of the freed memory, an attacker may gain arbitrary code execution within the renderer sandbox. The sandbox escape aspect allows the attacker to then break out of Chrome's security containment.

The attack scenario typically involves:

1. Hosting malicious content on an attacker-controlled website
2. Social engineering to lure victims to the malicious page
3. Triggering the use-after-free through frame manipulation
4. Achieving code execution and sandbox escape
5. Gaining access to the host system with user-level privileges

For detailed technical analysis, refer to the Packet Storm exploit documentation and the Chrome bug report.

Detection Methods for CVE-2022-0290

Indicators of Compromise

• Unexpected Chrome renderer process crashes or instability when visiting specific websites
• Detection of Chrome processes executing unusual system calls or spawning unexpected child processes
• Network connections to suspicious domains followed by anomalous process behavior
• Evidence of exploitation payloads in browser cache or memory dumps
• Chrome sandbox integrity violations logged by security monitoring tools

Detection Strategies

• Monitor for Chrome versions prior to 97.0.4692.99 in enterprise environments using software inventory tools
• Deploy endpoint detection rules that flag use-after-free exploitation patterns in Chrome processes
• Implement behavioral analysis to detect sandbox escape attempts, such as renderer processes accessing resources outside their sandbox scope
• Utilize memory protection technologies that can detect heap corruption and use-after-free conditions
• Configure Chrome Enterprise policies to report on browser version compliance

Monitoring Recommendations

• Enable Chrome crash reporting and analyze crash dumps for patterns consistent with memory corruption exploitation
• Monitor web proxy logs for requests to known malicious domains that may host exploitation content
• Implement network-level inspection to detect payloads targeting browser vulnerabilities
• Use SentinelOne's behavioral AI to detect post-exploitation activity following browser compromise
• Correlate browser process anomalies with subsequent system-level suspicious activity

How to Mitigate CVE-2022-0290

Immediate Actions Required

• Update Google Chrome to version 97.0.4692.99 or later immediately across all systems
• Enable automatic Chrome updates to ensure timely application of security patches
• Audit enterprise Chrome deployments to identify and remediate vulnerable versions
• Consider temporarily restricting access to untrusted websites on systems with vulnerable Chrome versions
• Deploy browser isolation solutions for high-risk users until patching is complete

Patch Information

Google addressed this vulnerability in the Chrome Stable Channel update released on January 19, 2022. The fix is included in Chrome version 97.0.4692.99 and all subsequent releases. Organizations should update Chrome through standard update mechanisms or enterprise deployment tools.

For detailed patch information, see the Google Chrome Update Announcement. The bug tracking details are available in Chrome Bug Report #1260134.

SentinelOne Singularity provides protection against exploitation attempts targeting this vulnerability through behavioral AI detection of sandbox escape techniques and memory corruption exploitation patterns.

Workarounds

• Enable Site Isolation with strict settings using --site-per-process command line flag if not enabled by default
• Consider using browser virtualization or containerization to limit the impact of potential sandbox escapes
• Implement network segmentation to reduce lateral movement opportunities if browser compromise occurs
• Deploy SentinelOne endpoint protection to detect and block post-exploitation activity
• Apply the principle of least privilege for user accounts to minimize impact of successful exploitation

# Verify Chrome version via command line
google-chrome --version
# Expected: Google Chrome 97.0.4692.99 or higher

# Check for updates on Linux
sudo apt update && sudo apt upgrade google-chrome-stable

# Force Chrome update check (Windows PowerShell)
# Start-Process "chrome://settings/help" -Wait