KPPW Latest Version SQL injection vulnerability 4 (multiple injection and unauthorized analysis due to the same problem)
KPPW latest SQL injection vulnerability 4 (multiple injection and unauthorized
AdvancedIn this article, we learned how to judge SQL injection, but it is far from enough to obtain the website's confidential content. Next, we will continue to learn how to obtain the desired content from the database. First, let's take a look at the general steps of SQL injection:Section 1: General steps of SQL
Some questions about SQL injection ... URL injection ....
Use some SQL injection tools to detect your own background ... Discovery display can inject. Want to ask for advice on how to prevent injection
All illegal characters hav
PHP prevents simple SQL injection analysis, Phpsql injection
This paper analyzes the simple method of PHP to prevent SQL injection. Share to everyone for your reference. Specific as follows:
There's only one simple way to do this.
There are many ways to prevent
0day examples to demonstrate the harm caused by wide characters. There are two reasons: 1. The wide character problem is not as common as rich Text XSS, GBK encoding CMS accounted for a relatively small proportion, blame me caishuxueqian, and can not find a corresponding instance of each chapter.
?? 2. The risk of injection is much larger than XSS, and if sent a
it so complicated? Or can I avoid all SQL Injection in this way?
Use htmlspecialchars/HTMLPurifier to defend against XSS injection, and use pre-processing parameterized queries to defend against SQL injection.
Call HTMLPurifie
. Contains 6,080 CJK kanji in GB 13000.1.(2) GBK/4: aa40-fea0. CJK Chinese characters and supplemental kanji are included in 8,160. CJK Chinese characters in the front, by the UCS code size, the addition of Chinese characters (including radicals and components) in the following, according to the "Kangxi Dictionary" page number/word rank.
As you can see, the two characters in the GBK encoding are a Chinese character, and the first character needs to be greater than 128. Original link: http:
SQL injection is a type of attack that is extremely damaging. Although the damage is great, the defense is far less difficult than XSS.
SQL injection can see: https://en.wikipedia.org/wiki/SQL_injection
SQL
character set.3. Use iconv with caution to convert string encoding, which is prone to problems. As long as we set all front-end html/js/css encoding to gbk and mysql/php encoding to gbk, there will be no garbled problem. You do not need to call the iconv conversion encoding, which causes unnecessary trouble. This article is a small summary of my experience in white box auditing, but I do have a lot of deficiencies. The posture mentioned in this article will inevitably have flaws and errors, I h
Label:in the previous blog we analyzed the principle of SQL injection, today we look at the overall process of SQL injection, that is, how to do SQL injection, because I have limited knowledge of database and network , this articl
Share two simple JS Code sections to prevent SQL injection and two jssql injection sections.
1. URL address anti-injection:
// Filter out Invalid URL. The SQL character var sUrl = location. search. toLowerCase (); var sQuery = sUrl. substring (sUrl. indexOf ("=") + 1); re
SQL injection is accessed from the normal WWW port, and it seems to be no different from the general web page access, so the current Municipal firewall does not alert SQL injection, if the Administrator does not check IIS logs, it may be invisible for a long time.
With the development of the B/S mode application, this
A SQL injection vulnerability in ThinkSNS (bypass anti-injection)
A SQL injection vulnerability exists in ThinkSNS and attackers can bypass anti-injection to obtain arbitrary data.
Vulnerability code: \ apps \ public \ Lib \ Actio
is disabled and the parameters are directly distributed to mysql. mysql performs SQL injection based on the set name utf8 character set. The above code will not generate injection.
Php5.3.6 or later
$ Pdo = new PDO ("mysql: host = localhost; dbname = test; charset = utf8", 'root', 'pwd ');
$ Pdo> exec ('set names utf8 ');
$ Id = '0 or 1 = 1 order by id desc ';
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
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
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
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