CVE-2024-7980 in Chrome
Summary
by MITRE • 08/22/2024
Insufficient data validation in Installer in Google Chrome on Windows prior to 128.0.6613.84 allowed a local attacker to perform privilege escalation via a crafted symbolic link. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 03/06/2025
The vulnerability identified as CVE-2024-7980 represents a critical weakness in Google Chrome's installer component on Windows systems, where insufficient data validation creates a pathway for local privilege escalation attacks. This flaw specifically affects Chrome versions prior to 128.0.6613.84 and demonstrates how installer security mechanisms can be exploited to elevate privileges from standard user to administrative level. The vulnerability stems from the installer's failure to properly validate symbolic link references during the installation process, creating an opportunity for malicious actors to manipulate the installation flow through carefully crafted symbolic links.
The technical implementation of this vulnerability involves the installer's handling of file system operations where symbolic links are not adequately verified for legitimacy. When a user runs the Chrome installer, the system processes various file operations that may include symbolic link resolution. An attacker can create a malicious symbolic link that points to a privileged system file or directory, and if the installer does not properly validate these links, it will follow them and potentially execute code or modify system files with elevated privileges. This type of flaw falls under the Common Weakness Enumeration category of insufficient input validation, specifically CWE-20, which encompasses a broad class of vulnerabilities arising from inadequate validation of input data.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it allows attackers to gain administrative control over affected systems. Once elevated, malicious actors can modify system files, install backdoors, access sensitive data, and potentially establish persistent access to the compromised machine. The local nature of this attack means that no network connectivity is required for exploitation, making it particularly dangerous in environments where users may have legitimate access to systems but should not possess administrative privileges. This vulnerability aligns with attack patterns documented in the MITRE ATT&CK framework under the privilege escalation tactics, specifically targeting the use of installer tools and file system manipulation techniques.
Mitigation strategies for CVE-2024-7980 primarily involve updating to Chrome version 128.0.6613.84 or later, which includes patches that properly validate symbolic link references during installation. Organizations should implement comprehensive patch management processes to ensure all systems receive updates promptly. Additional defensive measures include restricting user privileges on systems where Chrome is installed, implementing application whitelisting policies, and monitoring for suspicious installer activity. System administrators should also consider deploying endpoint detection and response solutions that can identify unusual symbolic link creation patterns or unauthorized installation attempts. The vulnerability highlights the importance of secure coding practices in installer components and demonstrates how seemingly minor validation gaps can lead to significant security implications across enterprise environments.