The remote web server appears to use a version of Ruby on Rails that contains a vulnerability in its HTTP Digest authentication support. Specifically, the 'authenticate_or_request_with_http_digest' function in 'lib/action_controller/http_authentication.rb' of the 'actionpack' gem does not treat a 'nil' response as an authentication failure but instead continues to compare that to the password supplied by the user.  A remote attacker may be able to leverage this issue to gain access to a page protected using HTTP Digest authentication by sending as part of the request a nil username / password or any username and no password.

The remote host is affected by the vulnerability described in GLSA-200912-02 (Ruby on Rails: Multiple vulnerabilities)

    The following vulnerabilities were discovered:
    sameer     reported that lib/action_controller/cgi_process.rb removes the     :cookie_only attribute from the default session options     (CVE-2007-6077), due to an incomplete fix for CVE-2007-5380 (GLSA     200711-17).
    Tobias Schlottke reported that the :limit and     :offset parameters of ActiveRecord::Base.find() are not properly     sanitized before being processed (CVE-2008-4094).
    Steve from     Coderrr reported that the CRSF protection in protect_from_forgery()     does not parse the text/plain MIME format (CVE-2008-7248).
    Nate reported a documentation error that leads to the assumption     that a block returning nil passed to     authenticate_or_request_with_http_digest() would deny access to the     requested resource (CVE-2009-2422).
    Brian Mastenbrook reported     an input sanitation flaw, related to multibyte characters     (CVE-2009-3009).
    Gabe da Silveira reported an input sanitation     flaw in the strip_tags() function (CVE-2009-4214).
    Coda Hale     reported an information disclosure vulnerability related to HMAC     digests (CVE-2009-3086).
  Impact :

    A remote attacker could send specially crafted requests to a vulnerable     application, possibly leading to the execution of arbitrary SQL     statements or a circumvention of access control. A remote attacker     could also conduct session fixation attacks to hijack a user's session     or bypass the CSRF protection mechanism, or furthermore conduct     Cross-Site Scripting attacks or forge a digest via multiple attempts.
  Workaround :

    There is no known workaround at this time.

The remote host is running a version of Mac OS X 10.6.x that is prior to 10.6.3.

Mac OS X 10.6.3 contains security fixes for the following products :

  - AFP Server
  - Apache
  - CoreAudio
  - CoreMedia
  - CoreTypes
  - CUPS
  - DesktopServices
  - Disk Images
  - Directory Services
  - Dovecot
  - Event Monitor
  - FreeRADIUS
  - FTP Server
  - iChat Server
  - ImageIO
  - Image RAW
  - Libsystem
  - Mail
  - MySQL
  - OS Services
  - Password Server
  - PHP
  - Podcast Producer
  - Preferences
  - PS Normalizer
  - QuickTime
  - Ruby
  - Server Admin
  - SMB
  - Tomcat
  - Wiki Server
  - X11

The remote host is running a version of Mac OS X 10.5 that does not have Security Update 2010-002 applied.

This security update contains fixes for the following products :

  - AppKit
  - Application Firewall
  - AFP Server
  - Apache
  - ClamAV
  - CoreTypes
  - CUPS
  - curl
  - Cyrus IMAP
  - Cyrus SASL
  - Disk Images
  - Directory Services
  - Event Monitor
  - FreeRADIUS
  - FTP Server
  - iChat Server
  - Image RAW
  - Libsystem
  - Mail
  - Mailman
  - OS Services
  - Password Server
  - perl
  - PHP
  - PS Normalizer
  - Ruby
  - Server Admin
  - SMB
  - Tomcat
  - unzip
  - vim
  - Wiki Server
  - X11
  - xar

The remote host is running a version of Mac OS X 10.6 that is older than version 10.6.3.  Mac OS X 10.6.3 contains security fixes for the following products :

  - AFP Server

  - Apache

  - CoreAudio

  - CoreMedia

  - CoreTypes

  - CUPS

  - DesktopServices

  - Disk Images

  - Directory Services

  - Dovecot

  - Event Monitor

  - FreeRADIUS

  - FTP Server

  - iChat Server

  - ImageIO

  - Image RAW

  - Libsystem

  - Mail

  - MySQL

  - OS Services

  - Password Server

  - PHP

  - Podcast Producer

  - Preferences

  - PS Normalizer

  - QuickTime

  - Ruby

  - Server Admin

  - SMB

  - Tomcat

  - Wiki Server

  - X11

ID	Name	Product	Family	Published	Updated	Severity
40334	Ruby on Rails HTTP Digest Authentication Bypass	Nessus	CGI abuses	7/21/2009	4/11/2022	high
43378	GLSA-200912-02 : Ruby on Rails: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	12/22/2009	1/6/2021	high
45372	Mac OS X 10.6.x < 10.6.3 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	3/29/2010	7/16/2018	critical
45373	Mac OS X Multiple Vulnerabilities (Security Update 2010-002)	Nessus	MacOS X Local Security Checks	3/29/2010	7/16/2018	critical
5489	Mac OS X < 10.6.3 Multiple Vulnerabilities	Nessus Network Monitor	Generic	3/30/2010	3/6/2019	critical

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