CVE-2024-44228 Overview
CVE-2024-44228 is a permissions handling vulnerability in Apple Xcode. An application running on a system with Xcode installed can inherit Xcode's permissions and gain unauthorized access to user data. The flaw stems from improper permissions checking in the development environment. Apple addressed the issue in Xcode 16 by adding stricter permissions validation. The vulnerability is tracked under [CWE-276: Incorrect Default Permissions].
Critical Impact
An app can inherit Xcode permissions and access protected user data without explicit authorization, bypassing macOS Transparency, Consent, and Control (TCC) protections.
Affected Products
- Apple Xcode versions prior to 16
- macOS systems with vulnerable Xcode installations
- Developer workstations relying on Xcode-granted TCC permissions
Discovery Timeline
- 2024-10-28 - CVE-2024-44228 published to the National Vulnerability Database
- 2025-03-13 - Last updated in NVD database
Technical Details for CVE-2024-44228
Vulnerability Analysis
The vulnerability resides in how Xcode manages permissions granted by the macOS TCC subsystem. Developers commonly grant Xcode broad access to files, automation, and other protected resources during normal development workflows. Without proper isolation, a separate application can leverage Xcode's process context and inherit these permissions. This grants the attacking app access to user data that it was never explicitly authorized to read.
The issue is categorized as an incorrect default permissions weakness. It does not require user interaction beyond launching the malicious app, and it does not modify or destroy data. The confidentiality impact is the primary concern.
Root Cause
The root cause is insufficient permissions checking within Xcode when child or related processes invoke privileged operations. Xcode failed to validate whether the requesting code path was authorized to use the granted entitlements. This allowed permission inheritance across process boundaries that should have been enforced.
Attack Vector
An attacker must deliver a malicious application to a developer workstation where Xcode is installed and has been granted TCC permissions. Once executed, the application leverages Xcode's permission scope to read user data such as documents, contacts, or files in protected directories. No privilege escalation or kernel exploitation is required for the data access to succeed.
No verified public proof-of-concept code is available for this vulnerability. Refer to the Apple Support Document for vendor-provided technical context.
Detection Methods for CVE-2024-44228
Indicators of Compromise
- Unexpected child processes spawned under the Xcode process tree accessing user data directories
- Applications reading from TCC-protected paths such as ~/Documents, ~/Desktop, or ~/Library without their own TCC grants
- Unsigned or unfamiliar binaries executing in proximity to Xcode launches
Detection Strategies
- Monitor process lineage for non-developer binaries inheriting context from Xcode.app
- Audit TCC database (TCC.db) access patterns to identify applications leveraging permissions granted to Xcode
- Correlate file access events against installed developer tool versions to flag vulnerable Xcode installs
Monitoring Recommendations
- Enable endpoint telemetry for macOS process creation and file access events
- Track Xcode version inventory across developer endpoints and flag versions prior to 16
- Alert on cross-process entitlement usage where a non-Xcode binary accesses resources typically gated by Xcode permissions
How to Mitigate CVE-2024-44228
Immediate Actions Required
- Upgrade all Xcode installations to version 16 or later
- Audit TCC permissions granted to Xcode and revoke unnecessary access
- Inventory developer endpoints to identify systems still running vulnerable Xcode versions
Patch Information
Apple addressed the vulnerability in Xcode 16 with improved permissions checking. The fix prevents applications from inheriting Xcode's TCC grants. See the Apple Support Document for full release details and download instructions.
Workarounds
- Restrict Xcode usage to dedicated developer accounts with minimal user data exposure
- Review and minimize TCC permissions granted to Xcode in System Settings under Privacy & Security
- Avoid installing untrusted applications on workstations where Xcode holds broad permissions
# Verify installed Xcode version
xcodebuild -version
# Reset TCC permissions for Xcode to remove inherited grants
tccutil reset All com.apple.dt.Xcode
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
