CVE-2023-6345 is a critical integer overflow vulnerability identified in Google Chrome prior to version 119.0.6045.199. This vulnerability allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a malicious file. The severity of this vulnerability is underscored by its CVSS score of 9.6, categorizing it as critical and highlighting the urgent need for organizations to address it.
Risk to organizations includes unauthorized access to sensitive data and systems, as attackers may leverage this vulnerability to execute arbitrary code outside the intended sandbox environment. This risk is elevated in environments where Chrome is widely utilized, such as corporate networks and public-facing services.
Organizations should prioritize patching immediately. The vulnerability was disclosed on November 29, 2023, and it is included in the Known Exploited Vulnerabilities (KEV) catalog, indicating that it is actively being targeted in the wild. Immediate remediation is essential to mitigate potential risks associated with this vulnerability.
The urgency for defenders stems from the fact that this vulnerability can lead to significant breaches if left unaddressed. Security teams must assess their environments, update to the latest version of Chrome, and implement any necessary mitigations as outlined by the vendor.
Vulnerability Details
The integer overflow vulnerability in Skia is a critical issue that affects Google Chrome and potentially other products utilizing this component, including ChromeOS and Android. The CVE entry describes how attackers could exploit this vulnerability to escape the intended security boundaries, posing a substantial threat to user data and system integrity.
The CVSS score of 9.6 reflects a critical level of severity, with high impacts on confidentiality, integrity, and availability. The vulnerability is classified under CWE-190, indicating that it stems from improper handling of integer calculations.
Affected versions include all Google Chrome versions prior to 119.0.6045.199. Organizations using Debian Linux versions 11.0 and 12.0, as well as Fedora versions 37, 38, and 39, are also at risk if they utilize Chrome or Chromium-based applications.
Technical Analysis
The root cause of the vulnerability lies in the improper handling of integer values in the Skia graphics library. This flaw allows an attacker to manipulate the data flow and potentially trigger an integer overflow condition. The attack vector for this vulnerability is primarily network-based, requiring an attacker to persuade a user to open a specially crafted file that exploits this flaw.
The attack complexity is categorized as low, meaning that attackers can exploit this vulnerability without significant effort or advanced skills. Privilege requirements are none, and user interaction is required, as the victim must open the malicious file. The impact on confidentiality, integrity, and availability is high, indicating that successful exploitation could lead to severe consequences.
Risk & Impact Analysis
Real-world deployment risks include unauthorized access to sensitive information, which could lead to data leaks, financial loss, and reputational damage. Organizations utilizing Chrome in their web applications or internal systems should be particularly vigilant, as the blast radius of this vulnerability is extensive due to the widespread use of Chrome across various sectors.
The urgency assessment based on the CVSS score and presence in the KEV catalog highlights the immediate need for action. Organizations should evaluate their exposure and implement necessary security controls to manage potential risks effectively.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The following versions are affected by CVE-2023-6345:
1. Google Chrome: All versions prior to 119.0.6045.199 2. Debian Linux: Versions 11.0 and 12.0 3. Fedora: Versions 37, 38, and 39 4. Microsoft Edge Chromium: All versions prior to 119.0.2151.97
Mitigation & Remediation
To mitigate the risks associated with this vulnerability, organizations should update to the latest version of Google Chrome. The patched version is 119.0.6045.199 or later. If upgrading is not immediately possible, consider disabling JavaScript or isolating the renderer process as temporary measures.
For a comprehensive approach to application security, organizations may want to explore penetration testing services to help identify and remediate vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual activity related to Chrome processes, particularly those indicating attempts to execute files or scripts that could exploit this vulnerability. Behavioral anomalies associated with document rendering and file handling should also be flagged.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2023-6345 lies in its representation of the risks associated with widespread software components like Skia. Security teams should be aware of similar vulnerabilities that could emerge in other open-source components. Regular assessments and updates are vital.
Organizations should consider implementing a robust vulnerability management program to proactively address potential vulnerabilities.
For further insights on securing applications, organizations can refer to our penetration testing methodology and security testing best practices resources to enhance defense mechanisms.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)