In-depth analysis of. NET application SQL injection and. netsql Injection
1. preparation tools: SQL SERVER, Visual Studio
2. Database scripts and. net code (c #)
3. SqlServer Profiler
SQL script code:
Use master go -- retrieve if exists in the SQLTMP database (SELECT * from
This gives malicious students the opportunity to use the input of some strange query string, splicing into a specific SQL statement, you can achieve the purpose of injection. Not only can you get important information about the database, you can even delete the entire table if the permissions are not set properly. As a result, SQL
Label:Access the Delete module on the home page, http://127.0.0.1/sql/delete.php, and start testing the Delete module. Delete syntax: DELETE from "Users" WHERE "username" = "' 1 '"
There may be injections in several locations, only one is shown here. The following shows the methods injected into different locations. One, String in WHERE clause To construct a POC: ' or Updatexml (1,concat (0x7e, (Database ()), 0x7e), 0) or '
Get database Second,
Nginx configuration file is a script, can help you filter everything you want to filter the content of the submission, I summarized some nginx of the anti-injection scanning rules, I hope to be useful to you:
The configuration file can prevent SQL and file injection to a certain extent, and put it inside the server block of the configuration file.
Prevent
through a botnet that publishes emails. the entire working process can be described as follows: first, install the Trojan on the computer through spam sent by the controlled host. then, the computer infected with the Trojan will download a piece of binary code. when the Trojan is started, it uses the search engine to search for websites with forms and vulnerabilities using Microsoft's ASP technology. The search result becomes a list of targets for
Introduction: This article mainly describes some ideas and solutions for some special problems encountered in the SQL injection process, including some manual injection syntax and penetration thinking, I would like to share this document with my startup cainiao friends. I have mastered some technologies and hope to share them with you, learn them together, and im
KPPW latest SQL injection vulnerability 8 (global problems cause 12 injection and unauthorized operations)
KPPW Latest Version SQL injection vulnerability 8. Identify the culprit from one problem. Global File problems cause 12 injection
.
According to national conditions, ASP + access or sqlserver accounts for more than 70% of Chinese websites, and PHP + mysq accounts for L20 %,OthersLess than 10%. In this article, we will explain ASP injection methods and techniques from entry-level, advanced to advanced, and PHP InjectionArticleWritten by Zwell, another Nb-Alliance friendWorkAnd programmers. D
server| Security
The recent SQL injection attack test intensified, many large websites and forums have been injected successively. These sites typically use a SQL Server database, which is why many people are beginning to suspect SQL Server security. In fact, SQL Server 20
Objective
This article is one of the most basic procedures for SQL manual injection. Basically in sqlilabs above experiment, if know all of the knowledge point, can go through the following steps to take off pants. The following steps are also the basis for other methods of trousers removal. If you want to be proficient in SQL
General SQL Injection exists in a system of Tongda OA (with injection techniques)
Recently learned SQL InjectionIn fact, it's only common. Is there an error-based injection to verify the version?Office Anywhere 2008 network smart Office SystemMysql + win + phpInstance:Http:
Sogou SQL injection 4: MySQL injection on the game site
SQL Injection on a game substation in sogou.
1. MySQL injection is located at the following address, which is a time-based injection:The UserID parameter is not filtered and
Wangkang security gateway SQL injection (bypassing global anti-injection)
After the last baptism of wangkang technology, the overall security has been greatly improved (clap your hands ...)Its global filter function is very abnormal. After the study, we finally found an injection that bypasses abnormal global anti-
Label:The general idea of SQL injection attacks is: 1. Find the SQL injection location;2. Determine the background database type;3. Determination of xp_cmdshell Performance4. Discovering the Web virtual directory5. Upload ASP Trojan;6. Get administrator privileges; First, th
Disclaimer: This article is only for teaching purposes. I am not responsible for the consequences of attacks caused by this article. Because it is found that the harm is too large, the original text has been greatly deleted and modified, even if this article is still very harmful, please do not do any destructive operations on the domestic site.
I decided to send it again and again. This method is widely used. It can be said that a website with SQL
("SSN ")
Dim cmd As new SqlCommand ("SELECT au_lname, au_fname FROM authors WHERE au_id = @ au_id ")Dim param = new SqlParameter ("au_id", SqlDbType. VarChar)Param. Value = SSNCmd. Parameters. Add (param)This will prevent attempts to secretly inject other SQL expressions (because of ADO. NET knows how to encode the string value of au_id, and avoid other data problems (for example, incorrectly converting the value type ). Note that the TableAdapter/Da
Secure SQL injection is accessed from the normal WWW port, and the surface appears to be no different from the general Web page access, so the current firewall does not alarm SQL injection, if the administrator does not see the IIS log habits, may be invaded for a long time will not find.
However,
In those years, we will explore the global protection of SQL injection and the second injection of Bypass.0x01 background
Currently, WEB programs basically have global filtering for SQL injection, such as enabling GPC in PHP or common in global files. use the addslashes () f
[PHP code audit instance tutorial] SQL injection-4. global protection Bypass second injection 0x01 background
Currently, WEB programs basically have global filtering for SQL injection, such as enabling GPC in PHP or common in global files. use the addslashes () function on p
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