CVE-2022-3075 in Chrome
Summary
by MITRE • 09/26/2022
Insufficient data validation in Mojo in Google Chrome prior to 105.0.5195.102 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
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Analysis
by VulDB Data Team • 04/29/2025
The vulnerability identified as CVE-2022-3075 represents a critical security flaw within Google Chrome's Mojo framework, specifically affecting versions prior to 105.0.5195.102. This issue stems from insufficient data validation mechanisms that exist within the Mojo component responsible for handling inter-process communication between Chrome's renderer and browser processes. The vulnerability operates under the premise that an attacker who has already compromised the renderer process can exploit this weakness to potentially escape the sandbox protection boundaries that typically isolate the renderer from the underlying operating system.
The technical implementation of this vulnerability involves the Mojo framework's inadequate validation of data received from untrusted sources within the renderer process. When a malicious HTML page is loaded, the framework fails to properly sanitize or validate input parameters that are passed through the Mojo IPC mechanism. This insufficient validation creates a pathway for privilege escalation attacks where the compromised renderer process can manipulate the Mojo interface to execute arbitrary code outside of its designated sandboxed environment. The flaw essentially allows for a bypass of Chrome's multi-process architecture security model, which is designed to contain potential exploits within individual processes.
From an operational standpoint, the impact of this vulnerability extends beyond simple privilege escalation as it fundamentally undermines Chrome's security architecture. Attackers leveraging this vulnerability can potentially gain access to sensitive system resources, read arbitrary files, execute commands with elevated privileges, and ultimately compromise the entire user system. The attack vector requires initial compromise of the renderer process, which is often achieved through other vulnerabilities or social engineering tactics, but once achieved, this flaw enables the attacker to break out of the browser's security boundaries. The vulnerability aligns with attack patterns documented in the ATT&CK framework under privilege escalation and defense evasion techniques, specifically targeting the sandbox escape category.
The remediation for CVE-2022-3075 requires immediate patching of Chrome to version 105.0.5195.102 or later, which includes enhanced input validation mechanisms within the Mojo framework. Security administrators should prioritize this update across all affected systems, particularly in enterprise environments where Chrome is widely deployed. Additional mitigations include implementing strict content security policies, enabling sandboxing features, and monitoring for unusual process behavior that might indicate exploitation attempts. The vulnerability demonstrates the importance of robust input validation in inter-process communication frameworks and highlights the critical need for comprehensive security testing of IPC mechanisms. Organizations should also consider implementing network-based intrusion detection systems to monitor for exploitation attempts targeting this specific vulnerability. This issue reflects the ongoing challenges in maintaining secure multi-process browser architectures and underscores the necessity for continuous security auditing of core framework components.