CVE-2021-28316 is a security feature bypass vulnerability in the Windows WLAN AutoConfig Service. This flaw can allow attackers to exploit the system under certain physical conditions. With a CVSS score of 4.2, this vulnerability is classified as medium severity, indicating it poses a notable risk to affected systems but does not allow for full system compromise without additional conditions.
Risk to organizations includes potential unauthorized access to sensitive information due to the bypassing of security features. The exploitation status of this vulnerability is currently assessed as not actively exploited in the wild, but organizations should remain vigilant.
Organizations should prioritize patching immediately. The longer this vulnerability remains unaddressed, the greater the risk of an attacker successfully exploiting it in a physical context.
The vulnerability was published on April 13, 2021, and affects multiple versions of Windows, including Windows 10, Windows 7, and various Windows Server editions. It is crucial for organizations to identify their affected systems and take appropriate action to mitigate risks.
Vulnerability Details
This vulnerability allows a bypass of security features within the Windows WLAN AutoConfig Service. It has a CVSS score of 4.2, indicating medium severity. The affected products include Windows 10, Windows 7, Windows 8.1, Windows Server 2008, 2012, 2016, and 2019. The vulnerability was disclosed in April 2021, and organizations should take note of this date for their patch management practices.
Technical Analysis
The root cause of CVE-2021-28316 is a flaw in the handling of security features by the Windows WLAN AutoConfig Service. Attackers exploiting this vulnerability would require physical access to the affected system, which adds a layer of complexity to the attack. The attack complexity is rated as high, meaning that while the vulnerability exists, successfully exploiting it requires specific conditions to be met.
The vulnerability requires no privileges and does not necessitate user interaction, making it particularly dangerous in environments where physical access is possible. The impacts of a successful exploit include high confidentiality impact, with no integrity or availability impact.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2021-28316 is notable, especially in settings where sensitive information is handled. If exploited, the confidentiality of data could be compromised, leading to significant repercussions for organizations. The urgency assessment is medium, primarily due to the physical access requirement, but organizations should not overlook the potential impact.
Given the current low exploitability score, this vulnerability may not be a priority for immediate remediation; however, organizations should incorporate it into their risk management strategies to ensure comprehensive protection.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of Microsoft products are affected by CVE-2021-28316: Windows 10 (all versions), Windows 7 (Service Pack 1), Windows 8.1, Windows RT 8.1, Windows Server 2008 R2 (Service Pack 1), Windows Server 2012, Windows Server 2016, and Windows Server 2019. Organizations should ensure they are running the latest patches to mitigate this vulnerability.
Mitigation & Remediation
Organizations should prioritize applying the latest security updates from Microsoft to patch this vulnerability. For more detailed guidance, refer to the Microsoft Security Response Center's advisory on CVE-2021-28316. Additionally, organizations can enhance their security posture through continuous security testing, ensuring all systems are adequately protected against emerging threats.
Detection Guidance
Organizations should monitor logs for any unusual access patterns or modifications to the WLAN AutoConfig Service. Behavioral anomalies indicating unauthorized attempts to access or bypass security features should be investigated promptly.
AppSecure Threat Intelligence Insight
CVE-2021-28316 represents a significant vulnerability that highlights the importance of maintaining robust security configurations and timely patch management. The trend of security feature bypass vulnerabilities continues to pose risks to organizations, emphasizing the need for proactive security measures.
Security teams should prioritize building resilience against such vulnerabilities by implementing a comprehensive security framework that includes regular vulnerability assessments and penetration testing. For more information on effective security testing strategies, organizations can refer to our guidance on penetration testing methodology and vulnerability management program design to strengthen their defenses.
By understanding the implications of vulnerabilities like CVE-2021-28316, organizations can better prepare themselves to respond to potential threats in an evolving cyber landscape.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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