CVE-2021-30554 is a high-severity use-after-free vulnerability affecting Google Chrome versions prior to 91.0.4472.114. This vulnerability allows attackers to exploit heap corruption via a crafted HTML page, exposing users to potential remote code execution risks. The CVSS score for this vulnerability is 8.8, indicating a high level of severity that organizations should not overlook.
The risk to organizations includes significant impacts on confidentiality, integrity, and availability due to the potential exploitation of this vulnerability. Users are required to interact with the malicious content, making social engineering tactics a likely method of attack. Given the nature of the vulnerability and its implications, organizations must prioritize patching immediately.
As of the latest updates, no public exploits have been confirmed for this vulnerability, but it is included in the CISA Known Exploited Vulnerabilities catalog, signifying its potential for exploitation in the wild. Organizations should remain vigilant and apply the necessary updates as soon as possible.
In light of these factors, the urgency for defenders is clear. Organizations utilizing affected versions of Google Chrome must act swiftly to mitigate the risks associated with CVE-2021-30554.
Vulnerability Details
The vulnerability is classified as a use-after-free issue in the WebGL component of Google Chrome. The official description states that it allows remote attackers to potentially exploit heap corruption via a crafted HTML page. The vulnerability was published on July 2, 2021, and is categorized under CWE-416.
With a CVSS score of 8.8, this vulnerability is considered high severity. The attack vector is through the network, requiring low attack complexity and no privileges. User interaction is required, reinforcing the need for users to be cautious about the content they engage with online.
Technical Analysis
The root cause of CVE-2021-30554 stems from improper memory management, specifically a use-after-free condition in the WebGL component. This vulnerability can be exploited when a user visits a specially crafted HTML page that leverages WebGL functionality.
Attackers may leverage this vulnerability by crafting malicious web pages that utilize WebGL features, leading to potential heap corruption. The attack complexity is low, as the attacker does not need any privileges; however, user interaction is necessary, as the victim must access the malicious page.
The impacts of this vulnerability are significant, as it affects confidentiality, integrity, and availability. Successful exploitation could allow an attacker to execute arbitrary code, potentially leading to complete system compromise.
Risk & Impact Analysis
Real-world deployment risks related to CVE-2021-30554 include the potential for widespread exploitation, particularly in environments where users frequently interact with web content. The blast radius could extend to any organization that utilizes Google Chrome or any Chromium-based browsers, including Microsoft Edge and Opera.
Organizations should consider the urgency of addressing this vulnerability as critical, given its high CVSS score and the potential for exploitation in the wild. The presence in the CISA Known Exploited Vulnerabilities catalog highlights the need for immediate action to prevent possible breaches.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions include Google Chrome prior to 91.0.4472.114 and Fedora versions 33 and 34. Organizations using these versions should upgrade to the latest releases to mitigate the risk associated with this vulnerability.
Mitigation & Remediation
Organizations should apply the relevant patches immediately. For Google Chrome, users should update to version 91.0.4472.114 or later. For Fedora, ensure that the systems are upgraded to versions 33 or 34, or later. If immediate patching is not feasible, consider implementing network controls to restrict access to potentially malicious content.
Additionally, organizations can enhance their security posture through periodic penetration testing to identify similar vulnerabilities in their systems.
Detection Guidance
Monitoring for unusual application behavior and logging indicators of unauthorized access attempts can assist in detecting potential exploitation of this vulnerability. Organizations should also look for HTTP requests to known malicious domains or patterns consistent with the exploitation of WebGL vulnerabilities.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-30554 highlights the ongoing need for robust security practices in web browsers and their components. This vulnerability is part of a larger trend where misuse of memory management can lead to severe exploitation potential across multiple platforms.
Security teams should learn from this incident and implement thorough testing methodologies to identify similar vulnerabilities. Regular updates and adherence to security best practices remain paramount for safeguarding organizational assets.
For additional insights on improving your security framework, consider reviewing our resources on vulnerability management programs, which provide guidance on effective risk assessment and mitigation strategies.
Additionally, teams should evaluate the importance of penetration testing methodologies to continuously assess their security posture against evolving threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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