CVE-2021-1870 : What You Need to Know
Learn about CVE-2021-1870, a logic issue affecting iOS and macOS by allowing arbitrary code execution. Find out the impact, affected versions, and steps to mitigate the vulnerability.
A logic issue was addressed with improved restrictions in CVE-2021-1870. This CVE affects Apple products including iOS, iPadOS, and macOS. The issue allows a remote attacker to potentially execute arbitrary code, and Apple has confirmed active exploitation.
Understanding CVE-2021-1870
CVE-2021-1870 is a logic issue that has security implications for various Apple operating systems.
What is CVE-2021-1870?
CVE-2021-1870 is a vulnerability in iOS, iPadOS, and macOS that could lead to arbitrary code execution by a remote attacker.
The Impact of CVE-2021-1870
The impact of CVE-2021-1870 is severe as it allows a remote attacker to potentially execute arbitrary code on the affected systems. Apple has acknowledged reports of active exploitation of this vulnerability.
Technical Details of CVE-2021-1870
CVE-2021-1870 affects the following Apple products and versions:
Vulnerability Description
The vulnerability fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4.
Affected Systems and Versions
- iOS and iPadOS: Less than version 14.4
- macOS: Less than version 11.2
Exploitation Mechanism
A remote attacker can exploit the vulnerability to cause arbitrary code execution on the affected devices.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-1870, follow these steps:
Immediate Steps to Take
- Update affected Apple devices to the latest versions available that contain the security patches.
- Monitor official Apple security advisories for any further updates or patches.
Long-Term Security Practices
- Regularly update all software and operating systems on Apple devices.
- Implement security best practices such as using strong passwords and enabling two-factor authentication.
Patching and Updates
Apply the following patches to protect against CVE-2021-1870:
- Install macOS Big Sur 11.2 or later
- Install Security Update 2021-001 Catalina
- Install Security Update 2021-001 Mojave
- Update to iOS 14.4 or later
- Update to iPadOS 14.4 or later