OWASP Web Application Security Testing Checklist

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Table of Contents

• Information Gathering

• Configuration Management

• Secure Transmission

• Authentication

• Session Management

• Authorization

• Data Validation

• Denial of Service

• Business Logic

• Cryptography

• Risky Functionality - File Uploads

• Risky Functionality - Card Payment

• HTML 5

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Information Gathering

• Manually explore the site

• Spider/crawl for missed or hidden content

• Check for files that expose content, such as robots.txt, sitemap.xml, .DS_Store

• Check the caches of major search engines for publicly accessible sites

• Check for differences in content based on User Agent (eg, Mobile sites, access as a Search engine Crawler)

• Perform Web Application Fingerprinting

• Identify technologies used

• Identify user roles

• Identify application entry points

• Identify client-side code

• Identify multiple versions/channels (e.g. web, mobile web, mobile app, web services)

• Identify co-hosted and related applications

• Identify all hostnames and ports

• Identify third-party hosted content

Configuration Management

• Check for commonly used application and administrative URLs

• Check for old, backup and unreferenced files

• Check HTTP methods supported and Cross Site Tracing (XST)

• Test file extensions handling

• Test for security HTTP headers (e.g. CSP, X-Frame-Options, HSTS)

• Test for policies (e.g. Flash, Silverlight, robots)

• Test for non-production data in live environment, and vice-versa

• Check for sensitive data in client-side code (e.g. API keys, credentials)

Secure Transmission

• Check SSL Version, Algorithms, Key length

• Check for Digital Certificate Validity (Duration, Signature and CN)

• Check credentials only delivered over HTTPS

• Check that the login form is delivered over HTTPS

• Check session tokens only delivered over HTTPS

• Check if HTTP Strict Transport Security (HSTS) in use

Authentication

• Test for user enumeration

• Test for authentication bypass

• Test for bruteforce protection

• Test password quality rules

• Test remember me functionality

• Test for autocomplete on password forms/input

• Test password reset and/or recovery

• Test password change process

• Test CAPTCHA

• Test multi factor authentication

• Test for logout functionality presence

• Test for cache management on HTTP (eg Pragma, Expires, Max-age)

• Test for default logins

• Test for user-accessible authentication history

• Test for out-of channel notification of account lockouts and successful password changes

• Test for consistent authentication across applications with shared authentication schema / SSO

Session Management

• Establish how session management is handled in the application (eg, tokens in cookies, token in URL)

• Check session tokens for cookie flags (httpOnly and secure)

• Check session cookie scope (path and domain)

• Check session cookie duration (expires and max-age)

• Check session termination after a maximum lifetime

• Check session termination after relative timeout

• Check session termination after logout

• Test to see if users can have multiple simultaneous sessions

• Test session cookies for randomness

• Confirm that new session tokens are issued on login, role change and logout

• Test for consistent session management across applications with shared session management

• Test for session puzzling

• Test for CSRF and clickjacking

Authorization

• Test for path traversal

• Test for bypassing authorization schema

• Test for vertical Access control problems (a.k.a. Privilege Escalation)

• Test for horizontal Access control problems (between two users at the same privilege level)

• Test for missing authorization

Data Validation

• Test for Reflected Cross Site Scripting

• Test for Stored Cross Site Scripting

• Test for DOM based Cross Site Scripting

• Test for Cross Site Flashing

• Test for HTML Injection

• Test for SQL Injection

• Test for LDAP Injection

• Test for ORM Injection

• Test for XML Injection

• Test for XXE Injection

• Test for SSI Injection

• Test for XPath Injection

• Test for XQuery Injection

• Test for IMAP/SMTP Injection

• Test for Code Injection

• Test for Expression Language Injection

• Test for Command Injection

• Test for Overflow (Stack, Heap and Integer)

• Test for Format String

• Test for incubated vulnerabilities

• Test for HTTP Splitting/Smuggling

• Test for HTTP Verb Tampering

• Test for Open Redirection

• Test for Local File Inclusion

• Test for Remote File Inclusion

• Compare client-side and server-side validation rules

• Test for NoSQL injection

• Test for HTTP parameter pollution

• Test for auto-binding

• Test for Mass Assignment

• Test for NULL/Invalid Session Cookie

Denial of Service

• Test for anti-automation

• Test for account lockout

• Test for HTTP protocol DoS

• Test for SQL wildcard DoS

Business Logic

• Test for feature misuse

• Test for lack of non-repudiation

• Test for trust relationships

• Test for integrity of data

• Test segregation of duties

Cryptography

• Check if data which should be encrypted is not

• Check for wrong algorithms usage depending on context

• Check for weak algorithms usage

• Check for proper use of salting

• Check for randomness functions

Risky Functionality - File Uploads

• Test that acceptable file types are whitelisted

• Test that file size limits, upload frequency and total file counts are defined and are enforced

• Test that file contents match the defined file type

• Test that all file uploads have Anti-Virus scanning in-place.

• Test that unsafe filenames are sanitised

• Test that uploaded files are not directly accessible within the web root

• Test that uploaded files are not served on the same hostname/port

• Test that files and other media are integrated with the authentication and authorisation schemas

Risky Functionality - Card Payment

• Test for known vulnerabilities and configuration issues on Web Server and Web Application

• Test for default or guessable password

• Test for non-production data in live environment, and vice-versa

• Test for Injection vulnerabilities

• Test for Buffer Overflows

• Test for Insecure Cryptographic Storage

• Test for Insufficient Transport Layer Protection

• Test for Improper Error Handling

• Test for all vulnerabilities with a CVSS v2 score > 4.0

• Test for Authentication and Authorization issues

• Test for CSRF

HTML 5

• Test Web Messaging

• Test for Web Storage SQL injection

• Check CORS implementation

• Check Offline Web Application

Source: OWASP