CVE-2025-14023
📋 TL;DR
This vulnerability in LINE for iOS allows attackers to spoof the user interface, creating confusion about whether displayed pages or interactive elements are trustworthy. It affects iOS users running LINE versions prior to 15.19, potentially leading users to interact with malicious content thinking it's legitimate.
💻 Affected Systems
- LINE for iOS
📦 What is this software?
Line by Linecorp
⚠️ Risk & Real-World Impact
Worst Case
Users could be tricked into entering sensitive credentials or financial information into spoofed interfaces that appear to be legitimate LINE or trusted websites.
Likely Case
Users might click on malicious links or interact with deceptive content due to UI confusion, potentially leading to phishing or social engineering attacks.
If Mitigated
With user awareness and cautious behavior, the impact is limited to minor confusion without significant data compromise.
🎯 Exploit Status
Exploitation requires specific conditions to trigger the UI inconsistency and user interaction with the spoofed interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 15.19 and later
Vendor Advisory: https://hackerone.com/reports/3260386
Restart Required: No
Instructions:
1. Open the App Store on your iOS device. 2. Search for 'LINE'. 3. Tap 'Update' to install version 15.19 or later. 4. Launch LINE to verify the update.
🔧 Temporary Workarounds
Avoid In-App Browser Usage
allUse Safari or other external browsers instead of LINE's in-app browser for sensitive activities.
Enable App Updates
allEnsure automatic app updates are enabled in iOS settings to receive security patches promptly.
🧯 If You Can't Patch
- Educate users to verify URLs and be cautious of unexpected UI elements in LINE
- Implement network filtering to block known malicious domains that might exploit this vulnerability
🔍 How to Verify
Check if Vulnerable:
Check LINE app version in iOS Settings > General > iPhone Storage > LINE, or within LINE app settings.Check Version:
Not applicable for iOS apps; check via device settings or app interface.Verify Fix Applied:
Confirm LINE version is 15.19 or higher after updating via App Store.📡 Detection & Monitoring
Log Indicators:
- Unusual user reports of unexpected UI behavior in LINE
Network Indicators:
- Suspicious domains being accessed through LINE's in-app browser
SIEM Query:
Not typically applicable for client-side mobile app vulnerabilities.