CVE-2021-30793 is a critical logic vulnerability affecting Apple macOS, specifically related to state management. This flaw can allow an application to execute arbitrary code with kernel privileges. It has been assigned a CVSS score of 9.8, categorizing it as critical due to its potential impact on system security.
The severity of this vulnerability is significant as it poses a direct risk to organizational security. Attackers could exploit this weakness to gain unauthorized access to sensitive data or disrupt system operations. As such, organizations should prioritize patching immediately.
Currently, there is no known exploit available for this vulnerability, and it has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, the critical nature of this vulnerability necessitates swift action to mitigate potential risks.
Organizations using affected macOS versions should take immediate steps to apply the necessary security updates, as this vulnerability could facilitate a range of malicious activities if left unaddressed.
Vulnerability Details
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, and Security Update 2021-005 Mojave. The vulnerability allows an application to execute arbitrary code with kernel privileges.
The CVSS score for this vulnerability is 9.8, which is categorized as critical due to the high potential for confidentiality, integrity, and availability impacts. The vulnerability affects macOS versions, specifically those prior to the patches released.
Technical Analysis
The root cause of CVE-2021-30793 is a logic issue that was not properly managed within the state of the affected applications. The attack vector for this vulnerability is network-based, with low complexity for exploitation. Attackers require no privileges and no user interaction is necessary to exploit this vulnerability.
This vulnerability has significant impacts in terms of confidentiality, integrity, and availability, as it can allow unauthorized applications to execute code at the kernel level, compromising the entire operating system.
Risk & Impact Analysis
Risk to organizations includes the potential for complete system compromise, data exfiltration, and operational disruption. The vulnerability's critical CVSS score of 9.8 indicates a high likelihood of exploitation in the wild, emphasizing the urgency for organizations to address it in their patch management processes.
The blast radius for this vulnerability is extensive, as it can affect any application running on the vulnerable versions of macOS. Organizations should assess their deployment of macOS systems to understand the potential impact.
Given the critical nature of this vulnerability, organizations should prioritize remediation efforts immediately to safeguard their systems and data.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects macOS versions 10.14 through 10.15.7, including various security updates prior to the patches released.
Mitigation & Remediation
Apple has released security updates to address this vulnerability. Organizations should apply the updates for macOS Big Sur 11.5, Security Update 2021-004 Catalina, and Security Update 2021-005 Mojave immediately. If patches cannot be applied, consider implementing network controls to limit exposure.
Continuous penetration testing can help identify any remaining vulnerabilities and ensure that the systems are hardened against potential attacks.
Detection Guidance
Organizations should monitor system logs for unusual activity that may indicate exploitation attempts. Behavioral anomalies or unexpected application behaviors should also be scrutinized.
AppSecure Threat Intelligence Insight
CVE-2021-30793 highlights the importance of robust state management in software design. It serves as a reminder for security teams to incorporate threat modeling practices within their development processes to identify similar vulnerabilities. Organizations should prioritize regular security assessments and vulnerability management programs to maintain an effective security posture.
For further insights into effective security testing practices, organizations should consider exploring topics such as penetration testing methodology and security testing best practices to strengthen their defenses 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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