CVE-2023-6702 is a high-severity vulnerability found in Google Chrome prior to version 120.0.6099.109. This vulnerability allows a remote attacker to exploit heap corruption through a crafted HTML page, leading to potential unauthorized access or manipulation. The vulnerability has been classified as high due to its ease of exploitation, requiring only user interaction to trigger the attack.
With a CVSS score of 8.8, the impact of this vulnerability is significant, affecting the confidentiality, integrity, and availability of the system. Attackers may leverage this vulnerability to execute arbitrary code, making it crucial for organizations to address this issue promptly.
Given the nature of the vulnerability, organizations should prioritize patching immediately. In addition to patching, it is advisable to monitor for potential exploitation attempts and review security posture to mitigate associated risks.
As of the last update, this vulnerability remains in a modified status, reflecting ongoing assessments and potential changes in exploitability. The urgency for defenders cannot be overstated.
Vulnerability Details
The vulnerability is described as a type confusion issue within the V8 JavaScript engine in Google Chrome. This flaw can lead to heap corruption, allowing an attacker to potentially gain control over the affected system through malicious HTML content.
The CVSS score of 8.8 indicates a high severity level, with a vector string indicating an attack vector over the network with low complexity, requiring no privileges and user interaction. The impacts on confidentiality, integrity, and availability are all rated high, indicating a severe risk to affected systems.
The vulnerability affects multiple products, including Google Chrome and Microsoft Edge Chromium, and is applicable to versions prior to the specified patch. The publication date of this vulnerability was December 14, 2023, and it is classified under CWE-843.
Technical Analysis
The root cause of CVE-2023-6702 lies in type confusion in the V8 engine, which may lead to improper memory management. This issue exemplifies the critical need for robust memory handling in applications that process untrusted data.
The attack vector for this vulnerability is network-based, meaning an attacker can exploit it remotely without needing physical access to the device. The attack complexity is low, as it requires user interaction, such as visiting a malicious webpage.
No special privileges are required for exploitation, which significantly increases the risk of successful attacks. User interaction is necessary to trigger the vulnerability, which could occur through social engineering techniques.
The impact on confidentiality, integrity, and availability is rated high, meaning successful exploitation can lead to complete system compromise.
Risk & Impact Analysis
Organizations using affected versions of Google Chrome or Microsoft Edge Chromium face substantial risks associated with CVE-2023-6702. The potential for remote exploitation through crafted HTML content poses a serious threat to data integrity and system security.
The blast radius of this vulnerability is considerable, as it can impact any user visiting a malicious webpage. Given the widespread use of these browsers, the potential for exploitation is amplified, highlighting the urgency for organizations to implement the necessary patches.
The urgency assessment based on the CVSS score indicates that organizations should prioritize remediation actions immediately to prevent possible attacks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable versions include Google Chrome prior to 120.0.6099.109, Microsoft Edge Chromium prior to 120.0.2210.77, and Fedora 38. Organizations using these versions are strongly encouraged to apply the necessary patches.
Mitigation & Remediation
Organizations should prioritize patching affected versions of Google Chrome and Microsoft Edge. The recommended version for upgrade is 120.0.6099.109 or later for Chrome and 120.0.2210.77 for Edge. In case patches are unavailable, organizations should implement strict network controls to limit exposure to potential exploitation.
Configuration hardening and the use of application security assessments can further reduce the risk of exploitation. Regular monitoring for anomalous activities and updates to security policies are also recommended.
For more detailed guidance on testing and securing applications, organizations can refer to our application security assessment services.
Detection Guidance
Organizations should monitor logs for indicators of exploitation attempts, such as unusual HTTP requests or attempts to load untrusted scripts. Behavioral anomalies in user sessions should also be tracked, particularly those involving unexpected interactions with web applications.
Network signatures associated with known exploits may aid in detection, and systems should be configured to alert administrators to potential exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2023-6702 highlights the importance of robust security practices in application development and deployment. The type confusion vulnerability in the V8 engine serves as a reminder of the complexities involved in managing memory in modern applications.
Organizations should learn from this incident by improving their vulnerability management programs, ensuring timely updates, and conducting comprehensive security testing. For insights into vulnerability management, organizations may refer to our vulnerability management program design guide.
Additionally, organizations should consider adopting continuous security practices to ensure their applications remain secure against evolving threats. For more on this, explore our services for continuous penetration testing that can help identify and mitigate such vulnerabilities proactively.
Finally, organizations should engage in red teaming exercises to simulate real-world attacks and validate their security posture. For further reading on red teaming, consider our guide on red teaming services that provide insights into potential vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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