CVE-2021-30869 is a high-severity type confusion vulnerability found in Apple’s iOS, iPadOS, and macOS. This vulnerability allows a malicious application to execute arbitrary code with kernel privileges, posing a significant risk to users. Apple has confirmed that an exploit for this vulnerability exists in the wild, which emphasizes the urgent need for users to apply available updates.
The vulnerability has a CVSS score of 7.8, indicating high severity. This score suggests that attackers could exploit this vulnerability with relative ease, particularly given its local attack vector and low complexity. The urgency for defenders is critical, as the potential impact includes unauthorized access to sensitive data and system integrity.
Organizations should prioritize patching immediately to protect their systems. Apple has released patches for various versions of its operating systems, including iOS 12.5.5, iOS 14.4, iPadOS 14.4, and macOS Big Sur 11.2, among others.
As this vulnerability is known to be actively exploited, it is imperative that users and organizations take swift action to mitigate the associated risks.
Vulnerability Details
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, and Security Update 2021-006 Catalina. The vulnerability is classified as CWE-843.
The vulnerability has a CVSS score of 7.8, categorized as high severity, reflecting its potential impact. Apple has acknowledged the existence of exploits in the wild, which raises the urgency for organizations to remediate this vulnerability.
Technical Analysis
The root cause of this vulnerability is a type confusion issue within Apple's operating systems. Attackers may leverage this vulnerability through local access, exploiting its low attack complexity. Notably, the exploitation requires user interaction, which may limit its immediate impact but does not negate the risk.
The attack vector is local, meaning that an attacker must have physical or authorized access to the device. Privileges required are none, which means that even a non-privileged user could potentially trigger the exploit. The impacts on confidentiality, integrity, and availability are all high, indicating a severe risk to the system.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive information and system control. The potential blast radius is significant, as the vulnerability affects multiple Apple products across different operating system versions. Organizations should assess their exposure and take immediate steps to patch affected systems.
The urgency for addressing this vulnerability is classified as critical, necessitating immediate action through patching processes to prevent exploitation. Given the CVSS score and confirmed active exploitation, organizations must incorporate this into their risk management and incident response strategies.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
Affected versions include iOS 12.0 through 12.5.4, iOS 14.0 through 14.3, and macOS versions including Big Sur prior to 11.2. Organizations should ensure that they upgrade to the latest versions to mitigate the risk.
Mitigation & Remediation
To mitigate this vulnerability, organizations should apply the latest updates provided by Apple. Recommended versions include iOS 12.5.5, iOS 14.4, iPadOS 14.4, and macOS Big Sur 11.2. For those unable to update immediately, consider implementing network controls and monitoring to detect any unusual behavior.
For further guidance, organizations can refer to the penetration testing services offered by AppSecure to identify potential vulnerabilities.
Detection Guidance
Organizations should monitor logs for any indicators of compromise related to this vulnerability. Look for unusual application behavior, unexpected system crashes, or unauthorized access attempts. Behavioral anomalies in network traffic may also indicate exploitation attempts.
AppSecure Threat Intelligence Insight
This vulnerability represents a significant risk to Apple users and highlights the need for continuous security assessment practices. As vulnerabilities like CVE-2021-30869 emerge, organizations must adapt their security postures to mitigate risks effectively.
Security teams should incorporate lessons from this vulnerability into their strategies, emphasizing the importance of timely patching and thorough testing of applications. For further insights, consider exploring our resources on penetration testing methodology and the importance of a robust vulnerability management program to ensure that similar issues are addressed proactively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)