CVE-2019-25349
📋 TL;DR
CVE-2019-25349 is a buffer overflow vulnerability in ScadaApp for iOS that allows attackers to cause a denial of service by crashing the application. Attackers can exploit this by pasting a 257-character buffer into the Servername field during login. This affects iOS users running ScadaApp version 1.1.4.0.
💻 Affected Systems
- ScadaApp for iOS
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete application crash requiring restart, potentially disrupting SCADA monitoring operations if the app is critical for system oversight.
Likely Case
Temporary application crash requiring user to restart the app, causing minor disruption to monitoring activities.
If Mitigated
No impact if the vulnerable version is not in use or if input validation prevents oversized buffers.
🎯 Exploit Status
Exploit requires physical or remote access to the iOS device with the app installed and user interaction to paste the buffer.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Later versions (check App Store for current version)
Vendor Advisory: https://apps.apple.com/ca/app/scadaapp/id1206266634
Restart Required: Yes
Instructions:
1. Open the App Store on your iOS device. 2. Search for 'ScadaApp'. 3. If an update is available, tap 'Update'. 4. Launch the updated app.
🔧 Temporary Workarounds
Input validation at user level
allUsers can avoid pasting long strings into the Servername field
Network segmentation
allRestrict network access to SCADA systems to reduce attack surface
🧯 If You Can't Patch
- Restrict physical access to iOS devices running the vulnerable app
- Implement application whitelisting to prevent unauthorized app usage
🔍 How to Verify
Check if Vulnerable:
Check the app version in iOS Settings > General > iPhone Storage > ScadaApp, or open the app and check the About section if available.Check Version:
Not applicable for iOS apps; check via iOS Settings or App Store.Verify Fix Applied:
After updating through App Store, verify the version is no longer 1.1.4.0 and test by attempting to paste a 257-character string into the Servername field.📡 Detection & Monitoring
Log Indicators:
- Application crash logs showing ScadaApp termination
- Unusually long input strings in authentication logs if logged
Network Indicators:
- No network indicators as exploit is local
SIEM Query:
Not applicable - local iOS app vulnerability