CVE-2020-3837 is a high-severity memory corruption vulnerability affecting multiple Apple products, including iOS, iPadOS, macOS, tvOS, and watchOS. This vulnerability allows applications to execute arbitrary code with kernel privileges, posing a significant risk to users' systems. The CVSS score for this vulnerability stands at 7.8, indicating a high risk level that organizations must address promptly.
The vulnerability was first published on February 27, 2020, and affects all versions prior to the respective vendor patches, which were released on March 24, 2020. Organizations using affected Apple products should prioritize remediation to prevent potential exploitation.
The urgency for addressing this vulnerability is critical, as attackers may leverage this flaw to gain unauthorized access and control over affected systems. Immediate patching is essential to protect sensitive information and maintain system integrity.
As of now, this vulnerability is included in the Known Exploited Vulnerabilities (KEV) catalog, highlighting its potential for active exploitation in the wild. Organizations must stay vigilant and ensure their systems are updated with the latest security patches.
In summary, CVE-2020-3837 represents a significant risk to Apple device users. Organizations should implement immediate measures to patch and secure their systems against this vulnerability.
Vulnerability Details
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.
The vulnerability is classified under CWE-787, indicating an issue with improper memory management. It has a CVSS score of 7.8, which reflects its potential impact on confidentiality, integrity, and availability.
Technical Analysis
The root cause of this vulnerability stems from memory corruption, which can occur when an application mishandles memory. The attack vector is local, and the attack complexity is low, meaning that an attacker does not require extensive skills to exploit this vulnerability. No privileges are required, but user interaction is necessary.
The impact of this vulnerability is severe, as it can lead to full control over the affected system, compromising confidentiality, integrity, and availability.
Risk & Impact Analysis
Risk to organizations includes unauthorized access, data breaches, and potential system takeovers. The blast radius is significant as multiple products are affected, including iOS, iPadOS, macOS, tvOS, and watchOS. Given the high CVSS score and its inclusion in the KEV catalog, organizations should prioritize patching immediately.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions include all prior to the following patches: iOS 13.3.1, iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, and watchOS 6.1.2.
Mitigation & Remediation
To mitigate this vulnerability, organizations should apply the latest updates from Apple promptly. The necessary updates include iOS 13.3.1, iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, and watchOS 6.1.2. For organizations unable to apply these updates immediately, configuration hardening and network controls should be implemented to mitigate potential risks. Continuous monitoring for suspicious activity is also strongly recommended.
For further guidance on securing Apple products, organizations can refer to resources such as the application security assessment provided by AppSecure.
Detection Guidance
Organizations should monitor logs for any unusual activity, particularly any attempts to execute code at the kernel level. Behavioral anomalies, such as unexpected application crashes or performance degradation, may also indicate exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2020-3837 is underscored by its inclusion in the KEV catalog, indicating its potential for exploitation in the wild. This vulnerability highlights the importance of robust memory management practices within software development.
Security teams should take this opportunity to review their vulnerability management programs and ensure they are equipped to address similar issues proactively. Additionally, this incident serves as a reminder of the critical need for regular updates and patch management.
For a comprehensive understanding of vulnerability management, organizations can refer to the vulnerability management program design guide by AppSecure.
Lastly, organizations should stay informed about emerging threats and vulnerabilities, and consider leveraging services like red teaming as a service to better prepare their defenses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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