#WINDOWS SQL INJECTION TOOL PRO#
#WINDOWS SQL INJECTION TOOL CODE#

It is a database engine task to improve the performance of the query. Select items from table where codition1 and condition2. Examples: Oracle (without statistics or poor tuned): Right to Left Access: Right to Left Дatabases with optimization process The engine estimates the cost of the condition evaluations in the where clause and executes the lighter first. It is a developer task to evaluate the lighter condition in first place for better performance. There are two types of database engines: Databases without optimization process Databases with optimization process Дatabases without optimization process The engine evaluates the condition in the where-clause from left to right or from right to left depending on the database engine Select items from table where codition1 and condition2. It depends on how the database engine evaluates the where clauses in the query. Time-Based Blind SQL Injection using Heavy Queries Attacker can perform an exploitation delaying the вЂњTrue-answer pageвЂќ using a heavy query. The light condition first Condition1 (10 sec) Condition2 (100 sec) Condition1 & condition2 Response Time TRUE FALSE FALSE 110 sec TRUE TRUE TRUE 110 sec FALSE Not evaluated FALSE 10 sec The heavy condition first Condition2 (100 sec) Condition1 (10 sec) Condition2 & condition1 Response Time TRUE FALSE FALSE 110 sec TRUE TRUE TRUE 110 sec FALSE Not evaluated FALSE 100 sec вЂњ Where-ClauseвЂќ execution order Select вЂњwhatever вЂњ From whatever Where condition1 and condition2 - Condition1 lasts 10 seconds - Condition2 lasts 100 seconds Which condition should be executed first? Time-Based Blind SQL Injection And in these scenarios with no differences between вЂњtrue-answer pageвЂќ and вЂњfalse-answer pageвЂќвЂ¦ What about databases engines without delay functions, i.e., MS Access, Oracle connection without PL/SQL support, DB2, etcвЂ¦? Is possible to perform an exploitation of Time-Based Blind SQL Injection Attacks?

Time-Based Blind SQL Injection: Tools SQL Ninja: Use exploitation of вЂњWaitforвЂќ method in MSSQL Databases

Delay functions: SQL Server: waitfor Oracle: dbms_lock.sleep MySQL: sleep or Benchmark Function Ex: if (exists(select * from users)) waitfor delay '0:0:5вЂ™ Injection forces a delay in the response page when the condition injected is True. Time-Based Blind SQL Injection In scenarios with no differences between вЂњTrue-Answer PageвЂќ and вЂњFalse-Answer PageвЂќ, time delays could be use. Д«lind SQL Injection Attacks Attacker analyzes the response pages looking for differences between вЂњTrue-Answer PageвЂќ and вЂњFalse-Answer PageвЂќ: Different hashes Different html structure Different patterns (keywords) Different linear ASCII sums вЂњ Different behaviorвЂќ By example: Response Time Д«lind SQL Injection Attacks If any difference exists, then: Attacker can extract all information from database How? Using вЂњbooleanizationвЂќ MySQL: Program.php?id=1 and 100>(ASCII(Substring(user(),1,1))) вЂњ True-Answer PageвЂќ or вЂњFalse-Answer PageвЂќ? MSSQL: Program.php?id=1 and 100>(Select top 1 ASCII(Substring(name,1,1))) from sysusers) Oracle: Program.php?id=1 and 100>(Select ASCII(Substr(username,1,1))) from all_users where rownumД«lind SQL Injection Attacks: Tools SQLbfTools: Extract all information from MySQL databases using patterns Д«lind SQL Injection Attacks: Tools Absinthe: Extract all information from MSSQL, PostgreSQL, Sybase and Oracle Databases using Linear sum of ASCII values. The attacker canВґt see any data extracted from the database. Blind SQL Injection Biind Xpath Injection Blind LDAP Injection Д«lind SQL Injection Attacks Attacker injects: вЂњ True where clausesвЂќ вЂњ False where clausesвЂњ Ex: Program.php?id=1 and 1=1 Program.php?id=1 and 1=2 Program doesnвЂ™t return any visible data from database or data in error messages.

#WINDOWS SQL INJECTION TOOL CODE#

Then the attacker looks for differences between true code injections (1=1) and false code injections (1=2) in the response pages to extract data. However this injection changes the behavior of the web application.

Command Injection SQL Injection LDAP Injection Xpath Injection Д«lind Attacks Attacker injects code but canВґt access directly to the data.

#WINDOWS SQL INJECTION TOOL PRO#

Speakers: Chema Alonso JosГ© Parada InformГЎtica64 Microsoft MS MVP Windows Security IT Pro Evangelist ДЄgenda Code Injections What are Blind Attacks? Blind SQL Injection Attacks Time-Based Blind SQL Injection Time-Based Blind SQL Injection using heavy queries Heavy Queries Optimization processes Demos with MS SQL Server, Oracle, Acess Marathon Tool Demo Conclusions Д¬ode Injection Attacks (Lazy) Developers use input parameters directly in queries without sanitizing them previously. Time-Based Blind SQL Injection using Heavy Queries

Windows sql injection tool