Integrity: Just as it may be possible to read sensitive information, it is also possible to make changes or even delete this information with a SQL Injection attack. Authorization: If authorization information is held in a SQL database, it may be possible to change this information through the successful exploitation of a SQL Injection vulnerability. Authentication: If poor SQL commands are used to check user names and passwords, it may be possible to connect to a system as another user with no previous knowledge of the password. Confidentiality: Since SQL databases generally hold sensitive data, loss of confidentiality is a frequent problem with SQL Injection vulnerabilities. The data is used to dynamically construct a SQL query. An unintended data enters a program from an untrusted source. See the OWASP Article on using SQL Injection to bypass a WAF Description How to Bypass Web Application Firewalls with SQLi See the OWASP Testing Guide for information on testing for SQL Injection vulnerabilities. How to Test for SQL Injection Vulnerabilities #Test url rewrite for sql injection with sqli dumper how to#
See the OWASP Code Review Guide article on how to Review Code for SQL Injection vulnerabilities. How to Review Code for SQL Injection Vulnerabilities See the OWASP Query Parameterization Cheat Sheet. See the OWASP SQL Injection Prevention Cheat Sheet. Related Security Activities How to Avoid SQL Injection Vulnerabilities In general, consider SQL Injection a high impact severity.
The severity of SQL Injection attacks is limited by the attacker’s skill and imagination, and to a lesser extent, defense in depth countermeasures, such as low privilege connections to the database server and so on. Due to the nature of programmatic interfaces available, J2EE and ASP.NET applications are less likely to have easily exploited SQL injections. SQL Injection is very common with PHP and ASP applications due to the prevalence of older functional interfaces. SQL injection attacks allow attackers to spoof identity, tamper with existing data, cause repudiation issues such as voiding transactions or changing balances, allow the complete disclosure of all data on the system, destroy the data or make it otherwise unavailable, and become administrators of the database server. SQL injectionĪttacks are a type of injection attack, in which SQL commandsĪre injected into data-plane input in order to affect the execution of In some cases issue commands to the operating system. Recover the content of a given file present on the DBMS file system and A successful SQL injection exploit can read sensitive dataįrom the database, modify database data (Insert/Update/Delete), executeĪdministration operations on the database (such as shutdown the DBMS), Or “injection” of a SQL query via the input data from the client to theĪpplication. A SQL injection attack consists of insertion
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