Difference between revisions of "Talk:SQL injection"

Revision as of 03:17, 9 August 2012

Modern day SQL injection obstacles and countermeasures

/countermeasures

Configuration & environment challenges

/countermeasures/environment

IDS, IPS, and web application firewalls

/countermeasures/environment/security systems

Common web application firewall HTTPD modules

/countermeasures/environment/common web application firewalls

Improper sanitizing

/countermeasures/sanitizing

Partial sanitizing

/countermeasures/sanitizing/partial

Deprecated sanitizing

/countermeasures/sanitizing/deprecated

4 Basic remote tests for SQL injection vulnerabilities

   4.1 Injection points
   4.2 Input testing
       4.2.1 Your first where clause injection
       4.2.2 Reconstructing injected queries

5 Bypassing modern SQL injection security measures

   5.1 Basic signature evasion
       5.1.1 Whitespace placement
       5.1.2 Integer and string size delimiters
       5.1.3 Switching up the data types
       5.1.4 Arithmetic tests
       5.1.5 Capitalization
       5.1.6 Extending conditional statements
   5.2 Defeating partial sanitizing
       5.2.1 Quotes
       5.2.2 Whitespace filtering
   5.3 Bypassing XSS filters during SQL injection
       5.3.1 Testing with BETWEEN
       5.3.2 Testing with Regular Expression Operators (REGEXP, ~, and RLIKE)

6 Intermediate SQL injection

   6.1 Automation theory
   6.2 Basic Injection : Union Select
       6.2.1 Determining the number of columns
       6.2.2 Extracting data
   6.3 Intermediate testing: "SELECT" ... LIMIT clause injections
   6.4 Intermediate injection: information retrieval via verbose errors

7 Advanced: manual boolean enumeration

   7.1 Using Ascii codes and the ascii() function for enumeration
       7.1.1 substring()
       7.1.2 Version fingerprinting with ascii-based enumeration
           7.1.2.1 In theory
           7.1.2.2 In Practice
   7.2 Using Regular Expressions for Boolean enumeration
       7.2.1 Getting started with regular expressions
       7.2.2 Version fingerprinting using compatible regular expressions

8 Expert: Timing attacks for automated boolean enumeration

   8.1 MySQL boolean timing attacks
       8.1.1 benchmark() and related issues
       8.1.2 Evasive sleep() based boolean enumeration with regular expressions
           8.1.2.1 Testing for the ability to sleep():
           8.1.2.2 Controlling sleep() for enumeration:
           8.1.2.3 Using sleep() to map a table name with regular expressions
   8.2 PostgreSQL Boolean Timing Attacks
       8.2.1 Testing for access to pg_sleep()
       8.2.2 Using pg_sleep() with alternative comparisons for evasive boolean enumeration

9 Expert: Automated Single-byte exfiltration

   9.1 Timing-based single-byte exfiltration
   9.2 The comparative precomputation attack

10 Further penetration

   10.1 Obtaining direct database access
   10.2 Obtaining filesystem access
   10.3 Obtaining code execution

11 Cheat Sheets

   11.1 Vulnerability testing
       11.1.1 Universal true and false statements
   11.2 MySQL syntax reference
       11.2.1 Mysql versions >= 5 user schema mapping (unprivileged)
       11.2.2 Privileged MySQL (any version) user
   11.3 PostgreSQL syntax reference
       11.3.1 PostgreSQL schema mapping
   11.4 Microsoft SQL syntax reference
       11.4.1 Microsoft SQL schema mapping (unprivileged)
       11.4.2 Privileged microsoft SQL injection

12 Patching SQL Injection Vulnerabilities