=begin
    Copyright 2010-2013 Tasos Laskos <tasos.laskos@gmail.com>

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
=end

#
# LDAP injection audit module.
#
# @author Tasos "Zapotek" Laskos <tasos.laskos@gmail.com>
#
# @version 0.1.2
#
# @see http://cwe.mitre.org/data/definitions/90.html
# @see http://projects.webappsec.org/w/page/13246947/LDAP-Injection
# @see http://www.owasp.org/index.php/LDAP_injection
#
class Arachni::Modules::LDAPInjection < Arachni::Module::Base

    def self.error_strings
        @errors ||= read_file( 'errors.txt' )
    end

    def run
        # This string will hopefully force the webapp to output LDAP error messages
        audit( "#^($!@$)(()))******",
            format:    [Format::APPEND],
            substring: self.class.error_strings
        )
    end

    def self.info
        {
            name:        'LDAPInjection',
            description: %q{It tries to force the web application to
                return LDAP error messages in order to discover failures
                in user input validation.},
            elements:    [ Element::FORM, Element::LINK, Element::COOKIE, Element::HEADER ],
            author:      'Tasos "Zapotek" Laskos <tasos.laskos@gmail.com>',
            version:     '0.1.2',
            references:  {
                'WASC'  => 'http://projects.webappsec.org/w/page/13246947/LDAP-Injection',
                'OWASP' => 'http://www.owasp.org/index.php/LDAP_injection'
            },
            targets:     %w(Generic),
            issue:       {
                name:            %q{LDAP Injection},
                description:     %q{LDAP queries can be injected into the web application
    which can be used to disclose sensitive data of affect the execution flow.},
                tags:            %w(ldap injection regexp),
                cwe:             '90',
                severity:        Severity::HIGH,
                cvssv2:          '',
                remedy_guidance: %q{User inputs must be validated and filtered
    before being used in an LDAP query.},
                remedy_code:     ''
            }

        }
    end

end