Security Fundamental and Application Security Weaknesses (Mobile)

Security Fundamentals

Application Security Concepts

• Least Privileges
• Secure By Default
• Defence in Depth
• Robust Error Checking
• Trust No Input
• Open Design
• Fail Securely
• Reuse Of Existing Security Controls In A Framework Or Language
• Logging
• Data Protection

Secure Development Lifecycle

Secure Architecture

Application Security Weaknesses

Mobile

• Sensitive Data Protection

  • Insecure Data Storage

    • Plaintext Storage Of Credentials
    • Storage On SDCard / External Storage
    • Storage Of Binary Cookies
    • Storage In Plist Or XML Files
    • Storage In Log Files
    • Storage In SQLite Database

• Insecure Development Practices

  • Insufficient Transport Layer Protection

    • Weak Cipher Suites
    • Trusting Self-Signed Or Untrusted Certificates
    • Weak Certificate Validation
    • Communication Over Cleartext Protocol
    • Improper Certificate Pinning Configuration

  • Broken Cryptography

    • Use Of Hardcoded Keys
    • use Of Encoding
    • Use Of Insecure/Deprecated Algorithms
    • use Of Short Encryption Keys
    • Insecure Storage Of Encryption Keys
    • Insecure Generation Of Encryption Keys
    • Reuse Of Initialization Vector
    • Improper Use Of Cryptography Algorithm

  • Client Side Injection

    • SQL Injection
    • Local File Inclusion
    • JavaScript Injection
    • XML Injection
    • DOM-Based Cross-Site Scripting
    • Untrusted third party sites

  • Lack of Binary Protection

    • No Code Obfuscation
    • No Protection From Debuggers
    • No Protection From Runtime Injection
    • No Protection From Piracy
    • Lack of Adequate Security Controls

  • Improper Platform Usage

    • Tapjacking
    • Webview Settings
    • Incorrect Activity Configuration
    • Insecure File/Directory Permissions
    • Insecure Use Of Pasteboard
    • Misuse Of URL Schemes
    • Misuse Of Intents
    • Misuse Of Broadcast Receivers
    • Misuse Of Keychain

  • Client Code Quality

    • Overflow Vulnerabilities
    • Format String Vulnerabilities
    • Improper Memory Management

  • Code Tampering

    • Backups Enabled
    • Tampering Detection

  • Reverse Engineering

    • Code Information Leakage
    • Emulation Detection

  • Extraneous Functionality

    • Autofill Password
    • Leftover Comments
    • Debugging Features Enabled

• Data Handling

  • Unintended Data Leakage

    • Request/Response Caching
    • Keyboard Caching
    • Copy/Paste Buffer Caching(Pasteboard)
    • Application Backgrounding Screenshots
    • Logging Sensitive Information
    • HTML5 Data Storage
    • Browser Cookies Objects
    • Analytics Data Sent To 3rd Parties

• Authentication and Access Control

  • Insecure Authentication

    • Storing Credentials With 'Remember Me' Functionality
    • Use Of Spoofable Parameters For Authentication
    • Uses Of Weak Passwords
    • Client Side Authentication For Authenticating To Server
    • Hardcoded API Keys
    • Weak Lockout Mechanism
    • Misuse Of Fingerprint
    • Password Enumeration
    • Username Enumeration

  • Insecure Authorization

    • Broken Access Control
    • Insecure Direct Object Reference
    • Using Inputs From Untrusted Sources

  • Improper Session Handling

    • Improper Timeout Of Session ID
    • Weak Session Token Generation Algorithm
    • Client Side Session Token Generation
    • Same Session ID With Change In Privilege
    • Improper Flags In Cookie Headers