CVE-2021-42299 is a security feature bypass vulnerability in Microsoft Surface Pro 3 firmware. This vulnerability allows an attacker with physical access to the device to bypass security features, potentially leading to unauthorized access or manipulation of data. The CVSS score assigned to this vulnerability is 5.6, indicating a medium severity level, which requires organizations to take appropriate action to mitigate risks.
Risk to organizations includes potential unauthorized access to sensitive data and a compromise of system integrity. This vulnerability is especially concerning for enterprises that utilize Microsoft Surface Pro 3 devices in environments that handle confidential information. The need for immediate attention is underscored by the physical attack vector, which may allow attackers to exploit this vulnerability without the need for network access.
As of now, there are no known exploits, and the vulnerability is categorized as not actively exploited. However, organizations should not become complacent, as the nature of physical access vulnerabilities can lead to significant risks if left unaddressed. Therefore, organizations should prioritize patching immediately.
The urgency for defenders is critical, given that the vulnerability has been published since October 2021. Organizations utilizing affected devices must assess their security posture and take necessary steps to remediate this vulnerability.
Vulnerability Details
The official description states that CVE-2021-42299 relates to a security feature bypass in Microsoft Surface Pro 3 firmware. It is classified as a medium severity vulnerability with a CVSS score of 5.6. The vulnerability affects the surface_pro_3_firmware component. It was first published on October 20, 2021, and is classified as modified.
The vulnerability type can be understood through its CVSS vector, which indicates an attack vector of physical, high attack complexity, low privileges required, and no user interaction needed. The impacts include low confidentiality, high integrity, and no availability impact.
Technical Analysis
The root cause of CVE-2021-42299 lies in the improper implementation of security features within the firmware of Microsoft Surface Pro 3 devices. Attackers with physical access to the device can exploit this vulnerability, allowing them to bypass security measures that protect the device's integrity.
The attack vector is categorized as physical, meaning that an attacker must have direct access to the device to exploit it. The complexity of the attack is high, and it requires low privileges. No user interaction is required from the victim, which further enhances the risk associated with this vulnerability.
The confidentiality impact is low, as unauthorized access may not directly expose sensitive data. However, the integrity impact is high, as attackers could alter system settings or data, leading to unauthorized changes. The availability impact is none, indicating that the vulnerability does not lead to denial of service.
Risk & Impact Analysis
Organizations utilizing Microsoft Surface Pro 3 devices must recognize the real-world risk posed by this vulnerability. The potential for an attacker to gain unauthorized access to sensitive information or manipulate data is significant. This risk is amplified in environments where such devices are used for confidential operations.
The blast radius includes any organization that employs the affected devices, which may lead to widespread consequences if exploited. The urgency of addressing this vulnerability is underscored by its moderate CVSS score of 5.6 and the nature of physical access vulnerabilities. Organizations should assess their security measures and ensure that firmware updates are applied as soon as possible.
Given the low EPSS score of 0.00414, which places it in the 62nd percentile, the likelihood of exploitation is relatively low. However, this should not lead to complacency, as the nature of physical vulnerabilities can allow attackers to bypass traditional defenses.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is the Microsoft Surface Pro 3 firmware, specifically the versions prior to the vendor patch. Organizations should verify their firmware version and ensure that they are running the latest updates to mitigate this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching the Microsoft Surface Pro 3 firmware to address this vulnerability. The recommended action is to update to the latest firmware version as provided by Microsoft. Additionally, organizations may consider implementing physical security controls to restrict access to devices.
For further guidance, organizations can refer to the resources on penetration testing for comprehensive assessments.
Detection Guidance
Organizations should monitor logs for any unusual access attempts, especially physical access to devices. Behavioral anomalies that may indicate attempts to bypass security features should also be tracked. Network signatures can be established to identify unauthorized access attempts or manipulation of firmware.
AppSecure Threat Intelligence Insight
CVE-2021-42299 highlights the importance of maintaining robust physical security measures for devices. This vulnerability serves as a reminder that physical access can lead to significant security risks, reinforcing the need for comprehensive security policies.
The trends indicate a growing focus on physical vulnerabilities in enterprise environments. Security teams must remain vigilant and proactive in assessing their security posture regarding physical access and device management.
For strategic defensive takeaways, organizations should prioritize security awareness training for personnel who manage or have access to critical devices. This should include training on recognizing potential threats and understanding the implications of security vulnerabilities.
For further insights, organizations may refer to the following resources: penetration testing methodology, vulnerability management program, and security testing best practices for comprehensive security strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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