CVE-2025-30441

5.5 MEDIUM

📋 TL;DR

This vulnerability in Xcode allows malicious apps to overwrite arbitrary files on the system due to improper state management. It affects developers using Xcode to build and test applications, potentially compromising development environments and any systems where vulnerable Xcode versions are installed.

💻 Affected Systems

Products:
  • Xcode
Versions: Versions before Xcode 16.3
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects Xcode installations on macOS; vulnerability requires running a malicious app built with or interacting with Xcode.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise through arbitrary file overwrite leading to privilege escalation, data destruction, or malware persistence.

🟠

Likely Case

Local privilege escalation or data corruption within development environments, potentially affecting build artifacts and source code repositories.

🟢

If Mitigated

Limited impact if proper sandboxing and file permission controls are enforced, restricting the app's ability to write to sensitive locations.

🌐 Internet-Facing: LOW - This is primarily a local vulnerability requiring app execution, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Development workstations and build servers running vulnerable Xcode versions are at risk from malicious apps or compromised development tools.

🎯 Exploit Status

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

Exploitation requires a malicious app to be executed, which could be delivered through compromised development dependencies or supply chain attacks.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Xcode 16.3

Vendor Advisory: https://support.apple.com/en-us/122380

Restart Required: Yes

Instructions:

1. Open App Store on macOS. 2. Search for Xcode updates. 3. Install Xcode 16.3 update. 4. Restart system if prompted. 5. Verify update in Xcode > About Xcode.

🔧 Temporary Workarounds

Restrict app execution

macOS

Limit execution of untrusted apps and development tools through macOS security policies.

sudo spctl --master-enable
sudo spctl --enable --label "Developer ID"

🧯 If You Can't Patch

  • Isolate development environments from production systems using network segmentation.
  • Implement strict file permission controls and audit file write operations in development directories.

🔍 How to Verify

Check if Vulnerable:

Check Xcode version in Xcode > About Xcode. If version is earlier than 16.3, system is vulnerable.

Check Version:

xcodebuild -version

Verify Fix Applied:

Confirm Xcode version is 16.3 or later in Xcode > About Xcode.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected file write operations by Xcode or related processes in system logs
  • Unauthorized file modifications in development directories

Network Indicators:

  • Unusual outbound connections from Xcode processes if malware is deployed

SIEM Query:

process_name:"Xcode" AND event_type:"file_write" AND NOT file_path:"/Users/*/Library/Developer/*"

🔗 References

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