CVE-2024-44191

5.5 MEDIUM

📋 TL;DR

This vulnerability allows an app to gain unauthorized access to Bluetooth functionality on Apple devices. It affects iOS, iPadOS, Xcode, visionOS, watchOS, macOS, and tvOS. The issue was addressed through improved state management in Apple's software.

💻 Affected Systems

Products:
  • iOS
  • iPadOS
  • Xcode
  • visionOS
  • watchOS
  • macOS
  • tvOS
Versions: Versions prior to iOS 17.7, iPadOS 17.7, Xcode 16, visionOS 2, watchOS 11, macOS Sequoia 15, iOS 18, iPadOS 18, tvOS 18
Operating Systems: iOS, iPadOS, macOS, watchOS, tvOS, visionOS
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running affected versions are vulnerable by default. The vulnerability is in Apple's software stack, not dependent on specific configurations.

📦 What is this software?

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious app could access Bluetooth data or services without user consent, potentially intercepting communications, tracking devices, or exploiting Bluetooth-related features.

🟠

Likely Case

App could access Bluetooth capabilities beyond its intended permissions, potentially collecting device information or interacting with Bluetooth peripherals.

🟢

If Mitigated

With proper app review and user permission controls, impact is limited to apps that have already been installed and granted some level of access.

🌐 Internet-Facing: LOW - Exploitation requires local app execution, not directly internet-facing.
🏢 Internal Only: MEDIUM - Risk exists if malicious apps are installed on devices within the environment.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a malicious app to be installed on the target device. No public exploit code has been identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iOS 17.7, iPadOS 17.7, Xcode 16, visionOS 2, watchOS 11, macOS Sequoia 15, iOS 18, iPadOS 18, tvOS 18

Vendor Advisory: https://support.apple.com/en-us/121238

Restart Required: Yes

Instructions:

1. Go to Settings > General > Software Update on iOS/iPadOS/tvOS/watchOS/visionOS. 2. Install available updates. 3. For macOS, go to System Settings > General > Software Update. 4. For Xcode, update via Mac App Store or developer.apple.com.

🔧 Temporary Workarounds

Disable Bluetooth when not needed

all

Turn off Bluetooth to prevent any unauthorized access attempts

Restrict app installations

all

Only install apps from trusted sources and review app permissions carefully

🧯 If You Can't Patch

  • Implement mobile device management (MDM) to control app installations
  • Monitor for unusual Bluetooth activity or unexpected app behavior

🔍 How to Verify

Check if Vulnerable:

Check device version in Settings > General > About > Software Version (iOS/iPadOS) or System Settings > General > About (macOS)

Check Version:

sw_vers (macOS), uname -a (general), or check Settings/System Settings

Verify Fix Applied:

Verify device is running iOS 17.7+, iPadOS 17.7+, macOS Sequoia 15+, watchOS 11+, tvOS 18+, visionOS 2+, or Xcode 16+

📡 Detection & Monitoring

Log Indicators:

  • Unexpected Bluetooth service access in system logs
  • Apps requesting Bluetooth permissions unexpectedly

Network Indicators:

  • Unusual Bluetooth pairing attempts
  • Bluetooth traffic from untrusted apps

SIEM Query:

Search for Bluetooth permission events from non-standard apps or outside normal usage patterns

🔗 References

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