CVE-2024-27818: Apple iPadOS RCE Vulnerability

CVE-2024-27818 Overview

CVE-2024-27818 is a memory handling vulnerability affecting Apple iOS, iPadOS, and macOS operating systems. The vulnerability stems from improper memory handling that could allow an attacker to cause unexpected application termination or execute arbitrary code on affected devices. This issue was addressed by Apple with improved memory handling in subsequent security updates.

Critical Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code with the privileges of the targeted application, potentially leading to complete device compromise or data theft.

Affected Products

• Apple iOS (versions prior to 17.5)
• Apple iPadOS (versions prior to 17.5)
• Apple macOS Sonoma (versions prior to 14.5)

Discovery Timeline

• May 14, 2024 - CVE-2024-27818 published to NVD
• March 26, 2025 - Last updated in NVD database

Technical Details for CVE-2024-27818

Vulnerability Analysis

This vulnerability is classified as a memory handling issue that can lead to arbitrary code execution. The flaw exists in the memory management routines of Apple's operating systems, where improper handling of memory operations can be exploited by an attacker. Given the local attack vector, exploitation requires user interaction, such as opening a maliciously crafted file or application.

The vulnerability is associated with CWE-77 (Command Injection), indicating that the memory corruption issue could potentially be leveraged to inject and execute arbitrary commands within the context of the affected application.

Root Cause

The root cause of CVE-2024-27818 lies in insufficient memory handling within Apple's iOS, iPadOS, and macOS platforms. When certain memory operations are performed improperly, the system fails to adequately validate or manage memory boundaries, creating conditions that attackers can exploit to corrupt memory state. This corruption can then be leveraged to redirect program execution flow, ultimately allowing the execution of attacker-controlled code.

Attack Vector

The attack vector for CVE-2024-27818 is local, requiring the attacker to have some form of access to the target system. Exploitation typically requires user interaction—for example, a victim might be tricked into opening a maliciously crafted document, image, or application bundle that triggers the vulnerable code path.

Once triggered, the memory corruption can be weaponized to:

1. Overwrite critical memory structures
2. Hijack application control flow
3. Execute arbitrary code with the privileges of the compromised application

The vulnerability manifests within Apple's memory handling routines. Exploitation involves triggering specific memory operations that cause improper state management, potentially leading to code execution. For detailed technical analysis, refer to the Full Disclosure mailing list posts and Apple Security Advisory HT214101.

Detection Methods for CVE-2024-27818

Indicators of Compromise

• Unexpected application crashes or termination events, particularly in system processes or frequently used applications
• Unusual memory allocation patterns or memory exhaustion warnings in system logs
• Presence of suspicious files that may have been designed to trigger the vulnerability
• Anomalous process behavior following the opening of untrusted content

Detection Strategies

• Monitor system crash reports for patterns indicative of memory corruption exploitation attempts
• Implement endpoint detection solutions capable of identifying abnormal memory access patterns
• Review application crash logs for signatures associated with memory handling vulnerabilities
• Deploy behavioral analysis tools to detect post-exploitation activities

Monitoring Recommendations

• Enable comprehensive logging on iOS, iPadOS, and macOS devices to capture application crash events
• Utilize Mobile Device Management (MDM) solutions to monitor device health and software version compliance
• Implement SentinelOne Singularity platform for real-time threat detection and response across Apple devices
• Establish baseline behavior profiles for critical applications to detect anomalous execution patterns

How to Mitigate CVE-2024-27818

Immediate Actions Required

• Update all affected Apple devices to iOS 17.5, iPadOS 17.5, or macOS Sonoma 14.5 or later immediately
• Restrict execution of untrusted applications and files from unknown sources
• Enable automatic updates on all Apple devices to ensure timely patch deployment
• Educate users about the risks of opening files from untrusted sources

Patch Information

Apple has addressed this vulnerability in the following security updates:

• iOS 17.5 and iPadOS 17.5 - Available via Apple Security Advisory HT214101
• macOS Sonoma 14.5 - Available via Apple Security Advisory HT214106

Organizations should prioritize deployment of these patches across their Apple device fleet. Additional information can be found in Apple Knowledge Base HT214100.

Workarounds

• Implement strict application whitelisting to prevent execution of untrusted code
• Use SentinelOne mobile threat defense to monitor for exploitation attempts on unpatched devices
• Restrict file sharing and AirDrop functionality to reduce attack surface
• Consider network segmentation for devices that cannot be immediately patched

# Check current iOS/iPadOS version via command line (macOS)
# For managed devices, use MDM commands
system_profiler SPSoftwareDataType | grep "System Version"

# Verify macOS Sonoma version
sw_vers -productVersion
# Expected output for patched systems: 14.5 or higher