The sanitize_css method in lib/action_controller/vendor/html-scanner/html/sanitizer.rb in the Action Pack component in Ruby on Rails before 2.3.18, 3.0.x and 3.1.x before 3.1.12, and 3.2.x before 3.2.13 does not properly handle \n (newline) characters, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2013:0698 advisory.

    Ruby on Rails is a modelviewcontroller (MVC) framework for web     application development. Action Pack implements the controller and the view     components.

    Two cross-site scripting (XSS) flaws were found in rubygem-actionpack and     ruby193-rubygem-actionpack. A remote attacker could use these flaws to     conduct XSS attacks against users of an application using     rubygem-actionpack or ruby193-rubygem-actionpack. (CVE-2013-1855,     CVE-2013-1857)

    Red Hat would like to thank Ruby on Rails upstream for reporting these     issues. Upstream acknowledges Charlie Somerville as the original reporter     of CVE-2013-1855, and Alan Jenkins as the original reporter of     CVE-2013-1857.

    Users of Red Hat OpenShift Enterprise 1.1.3 are advised to upgrade to these     updated packages, which correct these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-201412-28 (Ruby on Rails: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Ruby on Rails. Please       review the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could execute arbitrary code or cause a Denial of       Service condition. Furthermore, a remote attacker may be able to execute       arbitrary SQL commands, change parameter names for form inputs and make       changes to arbitrary records in the system, bypass intended access       restrictions, render arbitrary views, inject arbitrary web script or       HTML, or conduct cross-site request forgery (CSRF) attacks.
  Workaround :

    There is no known workaround at this time.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:1863 advisory.

    Red Hat Subscription Asset Manager acts as a proxy for handling     subscription information and software updates on client machines. Red Hat     Subscription Asset Manager is built on Ruby on Rails, a     model-view-controller (MVC) framework for web application development.
    Action Pack implements the controller and the view components.

    A directory traversal flaw was found in the way Ruby on Rails handled     wildcard segments in routes with implicit rendering. A remote attacker     could use this flaw to retrieve arbitrary local files accessible to a Ruby     on Rails application using the aforementioned routes via a specially     crafted request. (CVE-2014-0130)

    A flaw was found in the way Ruby on Rails handled hashes in certain     queries. A remote attacker could use this flaw to perform a denial of     service (resource consumption) attack by sending specially crafted queries     that would result in the creation of Ruby symbols, which were never garbage     collected. (CVE-2013-1854)

    Two cross-site scripting (XSS) flaws were found in Action Pack. A remote     attacker could use these flaws to conduct XSS attacks against users of an     application using Action Pack. (CVE-2013-1855, CVE-2013-1857)

    It was discovered that the internationalization component of Ruby on Rails     could, under certain circumstances, return a fallback HTML string that     contained user input. A remote attacker could possibly use this flaw to     perform a reflective cross-site scripting (XSS) attack by providing a     specially crafted input to an application using the aforementioned     component. (CVE-2013-4491)

    A denial of service flaw was found in the header handling component of     Action View. A remote attacker could send strings in specially crafted     headers that would be cached indefinitely, which would result in all     available system memory eventually being consumed. (CVE-2013-6414)

    It was found that the number_to_currency Action View helper did not     properly escape the unit parameter. An attacker could use this flaw to     perform a cross-site scripting (XSS) attack on an application that uses     data submitted by a user in the unit parameter. (CVE-2013-6415)

    Red Hat would like to thank Ruby on Rails upstream for reporting these     issues. Upstream acknowledges Ben Murphy as the original reporter of     CVE-2013-1854, Charlie Somerville as the original reporter of     CVE-2013-1855, Alan Jenkins as the original reporter of CVE-2013-1857,     Peter McLarnan as the original reporter of CVE-2013-4491, Toby Hsieh as the     original reporter of CVE-2013-6414, and Ankit Gupta as the original     reporter of CVE-2013-6415.

    All Subscription Asset Manager users are advised to upgrade to these     updated packages, which contain backported patches to correct these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Changes in rubygem-actionpack-3_2 :

  - add 2 patches to fix security issues :

  - bug-809935_3-2-css_sanitize.patch: CVE-2013-1855:
    rubygem-actionpack*: XSS vulnerability in sanitize_css     in Action Pack (bnc#809935)

  - bug-809940_3-2-sanitize_protocol.patch: CVE-2013-1857:
    rubygem-actionpack*: XSS Vulnerability in the `sanitize`     helper of Ruby on Rails (bnc#809940)

Changes in rubygem-actionpack-2_3 :

  - add 2 patches to fix security issues :

  - bug-809935_2-3-css_sanitize.patch: CVE-2013-1855:
    rubygem-actionpack*: XSS vulnerability in sanitize_css     in Action Pack (bnc#809935)

  - bug-809940_2-3-sanitize_protocol.patch: CVE-2013-1857:
    rubygem-actionpack*: XSS Vulnerability in the `sanitize`     helper of Ruby on Rails (bnc#809940)

The remote Mac OS X host has a version of OS X Server installed that is prior to 3.0. It is, therefore, affected by the following vulnerabilities :

  - A denial of service vulnerability exists in the     included JSON Ruby Gem, which can be abused to exhaust     all available memory resources. (CVE-2013-0269)

  - Multiple cross-site scripting vulnerabilities exist in     the included Ruby on Rails software. (CVE-2013-1854 /     CVE-2013-1855 / CVE-2013-1856 / CVE-2013-1857)

  - A buffer overflow exists in the included FreeRADIUS     software that can be triggered when parsing the 'not     after' timestamp in a client certificate when using     TLS-based EAP methods. (CVE-2012-3547)

  - A logic issue exists whereby the RADIUS service could     choose an incorrect certificate from a list of     configured certificates.

The remote host is running a version of Mac OS X 10.6 or 10.7 that does not have Security Update 2013-002 applied.  This update contains numerous security-related fixes for the following components :

  - CoreMedia Playback (10.7 only)
  - Directory Service (10.6 only)
  - OpenSSL
  - QuickDraw Manager
  - QuickTime
  - Ruby (10.6 only)
  - SMB (10.7 only)

Fix for CVE-2013-1855 and CVE-2013-1857.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several cross-site-scripting and denial of service vulnerabilities were discovered in Ruby on Rails, a Ruby framework for web application development.

ID	Name	Product	Family	Severity
119434	RHEL 6 : rubygem-actionpack and ruby193-rubygem-actionpack (RHSA-2013:0698)	Nessus	Red Hat Local Security Checks	medium
79981	GLSA-201412-28 : Ruby on Rails: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
79326	RHEL 6 : Subscription Asset Manager 1.4 (RHSA-2014:1863)	Nessus	Red Hat Local Security Checks	high
74972	openSUSE Security Update : rubygem-actionpack-3_2 (openSUSE-SU-2013:0661-1)	Nessus	SuSE Local Security Checks	medium
74968	openSUSE Security Update : rubygem-actionpack-2_3 (openSUSE-SU-2013:0662-1)	Nessus	SuSE Local Security Checks	medium
70590	Mac OS X : OS X Server < 3.0 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	high
66809	Mac OS X Multiple Vulnerabilities (Security Update 2013-002)	Nessus	MacOS X Local Security Checks	critical
65755	Fedora 18 : rubygem-actionpack-3.2.8-3.fc18 (2013-4214)	Nessus	Fedora Local Security Checks	medium
65752	Fedora 17 : rubygem-actionpack-3.0.11-9.fc17 (2013-4199)	Nessus	Fedora Local Security Checks	medium
65727	Debian DSA-2655-1 : rails - several vulnerabilities	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2013-1855

medium

Tenable Plugins

medium

critical

high

medium

medium

high

critical

medium

medium

medium