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mukul975
55 lines
2.8 KiB
Markdown
55 lines
2.8 KiB
Markdown
# Standards Reference: Insecure Data Storage in Mobile
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## OWASP Mobile Top 10 2024 Mapping
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| OWASP ID | Risk | Data Storage Relevance |
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|----------|------|----------------------|
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| M1 | Improper Credential Usage | Hardcoded credentials in SharedPreferences, plists, databases |
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| M6 | Inadequate Privacy Controls | PII stored unencrypted, accessible via backup extraction |
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| M8 | Security Misconfiguration | allowBackup=true, world-readable files, missing encryption |
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| M9 | Insecure Data Storage | Primary focus: all local storage vulnerabilities |
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| M10 | Insufficient Cryptography | Weak encryption of local databases, hardcoded keys |
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## OWASP MASVS v2.0 - MASVS-STORAGE Controls
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| Control | Description | Test Method |
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|---------|-------------|-------------|
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| MASVS-STORAGE-1 | App securely stores sensitive data | Inspect SharedPreferences, keychain, databases |
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| MASVS-STORAGE-2 | App prevents sensitive data leakage | Check logs, clipboard, backups, screenshots |
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## NIST SP 800-163 Rev 1 - Mobile App Vetting
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- Section 4.3.1: Data storage analysis for sensitive information at rest
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- Section 4.3.2: Verification of encryption implementation for stored data
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- Section 5.2: Data protection requirements for enterprise mobile apps
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## CWE Mappings
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| CWE ID | Title | Storage Type |
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|--------|-------|-------------|
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| CWE-312 | Cleartext Storage of Sensitive Information | SharedPreferences, plists, SQLite |
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| CWE-316 | Cleartext Storage in Memory | Process memory, clipboard |
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| CWE-359 | Exposure of Private Personal Information | PII in unencrypted databases |
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| CWE-522 | Insufficiently Protected Credentials | Passwords in SharedPreferences |
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| CWE-532 | Information Exposure Through Log Files | Sensitive data in logcat/syslog |
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| CWE-921 | Storage of Sensitive Data in Unprotected Mechanism | External storage, world-readable |
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| CWE-922 | Insecure Storage of Sensitive Information | General insecure storage |
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## Android Keystore Best Practices
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| Practice | Secure | Insecure |
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|----------|--------|----------|
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| Key storage | Android Keystore (hardware-backed) | Hardcoded in APK or SharedPreferences |
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| Database encryption | SQLCipher with Keystore-derived key | Unencrypted SQLite |
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| Shared Preferences | EncryptedSharedPreferences (Jetpack) | MODE_PRIVATE without encryption |
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| File encryption | AES-256-GCM with Keystore key | Plaintext files in internal storage |
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## iOS Data Protection Classes
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| Class | When Accessible | Use Case |
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|-------|----------------|----------|
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| NSFileProtectionComplete | Only when unlocked | Highly sensitive data |
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| NSFileProtectionCompleteUnlessOpen | While open/unlocked | Files written in background |
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| NSFileProtectionCompleteUntilFirstUserAuthentication | After first unlock | Background-accessible data |
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| NSFileProtectionNone | Always | Non-sensitive cached data |
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