CVE-2021-38015 is a high-severity vulnerability discovered in Google Chrome prior to version 96.0.4664.45. This vulnerability allows attackers to bypass navigation restrictions by convincing users to install malicious extensions. With a CVSS score of 8.8, it poses significant real-world risks as it enables attackers to execute arbitrary actions within the browser.
The vulnerability's exploitation requires user interaction, making it essential for organizations to educate users about the risks associated with installing unverified extensions. Given the high impact on confidentiality, integrity, and availability, organizations should prioritize remediation efforts.
Since the vulnerability is related to Chrome, which is widely used, the potential attack surface is extensive. Organizations utilizing Chrome should ensure that their users are aware of security best practices and monitor for any unusual browser behavior.
Organizations should prioritize patching immediately to mitigate risks associated with CVE-2021-38015.
Vulnerability Details
This vulnerability allows an attacker to exploit inappropriate input handling. The CVE was published on December 23, 2021, and has been classified under CWE-20 (Improper Input Validation). The affected versions include all versions of Google Chrome prior to 96.0.4664.45.
The CVSS score of 8.8 indicates a high severity level, emphasizing the need for rapid response from security teams to apply necessary patches.
Technical Analysis
The root cause of CVE-2021-38015 lies in the improper implementation of input handling in Google Chrome. Attackers can exploit this vulnerability through a network attack vector, leveraging the low attack complexity and requiring no privileges.
User interaction is essential for exploitation, as users must be convinced to install the malicious Chrome extension. The impacts include high confidentiality, integrity, and availability risks.
Risk & Impact Analysis
The real-world deployment of this vulnerability can lead to significant security breaches. Organizations that rely heavily on Chrome for day-to-day operations are at a greater risk, as attackers can use compromised extensions to gain unauthorized access to sensitive data.
Given the current threat landscape, organizations must assess their exposure and implement adequate security measures to protect against potential exploitation.
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 96.0.4664.45 are affected by this vulnerability. Organizations using Fedora versions 34 and Debian Linux versions 10.0 and 11.0 are also at risk.
Mitigation & Remediation
To mitigate the risks associated with CVE-2021-38015, organizations should apply the latest patches for Google Chrome as soon as they are available. Regularly updating software and educating users about the dangers of installing unverified extensions is crucial.
Organizations can also consider implementing network controls and monitoring solutions to detect any suspicious activity related to browser usage.
For additional guidance on effective security measures, organizations can refer to resources on penetration testing and application security.
Detection Guidance
Monitoring user activity and browser logs can help detect potential exploitation attempts. Look for any unusual installation of extensions or changes in browser settings that may indicate an attempt to exploit this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2021-38015 represents a critical reminder of the importance of browser security and user education. As browsers are frequently targeted by attackers, organizations must remain vigilant in monitoring for vulnerabilities and applying patches promptly.
For further insights on securing browser environments, organizations can explore our penetration testing methodology and strategies for application security.
Regular security assessments and penetration tests can help organizations identify and remediate vulnerabilities before they are exploited. For more information, consult our resources on vulnerability management programs and incident response strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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