CVE-2021-30562 is a high-severity vulnerability found in Google Chrome. This vulnerability allows a remote attacker to potentially exploit heap corruption through a crafted HTML page. The CVSS score for this vulnerability is 8.8, indicating a high level of risk to organizations that have not yet applied the necessary updates. The vulnerability affects all versions of Google Chrome prior to 91.0.4472.164, making it a significant concern for users and organizations relying on this browser.
The use after free vulnerability in the WebSerial component can be exploited by an attacker to gain unauthorized access or control over affected systems. Given the prevalence of Google Chrome in both personal and enterprise environments, the potential impact of this vulnerability is substantial. Organizations should prioritize patching immediately to prevent exploitation and potential data loss.
As of the last update, there is no public exploit available for this vulnerability, but the possibility of future exploitation remains a concern. Users are strongly advised to ensure they are using a patched version of Google Chrome to mitigate the risks associated with this vulnerability.
Organizations should also monitor for any indicators of exploitation and prepare for potential incidents as they arise. Proper security measures and timely updates are critical in safeguarding systems against such vulnerabilities.
Vulnerability Details
The vulnerability is classified as a use after free issue in the WebSerial component of Google Chrome. The affected versions include all versions prior to 91.0.4472.164. It was published on August 3, 2021, and is referenced as CWE-416. The CVSS score of 8.8 indicates high severity with impacts on confidentiality, integrity, and availability.
Technical Analysis
The root cause of this vulnerability lies in improper memory management in the WebSerial component. Attackers may leverage this flaw to execute code remotely by crafting malicious HTML content that exploits the use after free condition. The attack vector is network-based, requiring user interaction, as the victim must visit the malicious page.
The complexity of executing such an attack is low, as it requires no special privileges, and the impacts are severe, with high potential for confidentiality, integrity, and availability impacts.
Risk & Impact Analysis
Risk to organizations includes significant data exposure and potential system compromise. The blast radius could extend to all users of the affected versions of Chrome, making it critical for organizations to address this vulnerability promptly. The urgency for remediation is high due to the CVSS score of 8.8, indicating a serious threat that could be exploited if left unpatched.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Google Chrome prior to 91.0.4472.164 are affected by this vulnerability. Organizations should ensure their systems are updated to this version or later to mitigate the risk.
Mitigation & Remediation
Organizations are advised to patch their Google Chrome installations to version 91.0.4472.164 or later. Regular updates to browser software should be part of an organization’s security policy to prevent exploitation of known vulnerabilities. For further assistance, organizations can consider engaging in penetration testing services to identify and remediate vulnerabilities proactively.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual network traffic associated with WebSerial connections, particularly from untrusted sources. Logging and analyzing browser interactions can help identify anomalies that may indicate an attempted exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-30562 highlights the necessity for continuous monitoring and timely patching of software vulnerabilities. This incident represents a trend towards increasing exploitation of memory management vulnerabilities in widely-used applications. Organizations are encouraged to learn from such vulnerabilities by enhancing their security postures and employing proactive security measures.
For additional insights on vulnerability management, organizations can refer to articles on vulnerability management programs, best practices in penetration testing methodology, and strategies for API security testing to further strengthen their defenses against similar vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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