SynopsisThe remote Debian host is missing a security-related update.
DescriptionThe remote Debian 10 host has a package installed that is affected by a vulnerability as referenced in the dla-3227 advisory.
- # Possible XSS Vulnerability in Rails::Html::SanitizerThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.This vulnerability has been assigned the CVE identifier CVE-2022-32209.Versions Affected: ALLNot affected: NONEFixed Versions: v1.4.3## ImpactA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both `select` and `style` elements.Code is only impacted if allowed tags are being overridden. This may be done via application configuration:```ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = [select, style]```see https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr it may be done with a `:tags` option to the Action View helper `sanitize`:```<%= sanitize @comment.body, tags:
[select, style] %>```see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr it may be done with Rails::Html::SafeListSanitizer directly:```ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = [select, style]```or```ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [select, style])```All users overriding the allowed tags by any of the above mechanisms to include both select and style should either upgrade or use one of the workarounds immediately.## ReleasesThe FIXED releases are available at the normal locations.## WorkaroundsRemove either `select` or `style` from the overridden allowed tags.## CreditsThis vulnerability was responsibly reported by [windshock](https://hackerone.com/windshock?type=user). (CVE-2022-32209)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
SolutionUpgrade the ruby-rails-html-sanitizer packages.
For Debian 10 buster, this problem has been fixed in version 1.0.4-1+deb10u1.
File Name: debian_DLA-3227.nasl
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CPE: p-cpe:/a:debian:debian_linux:ruby-rails-html-sanitizer, cpe:/o:debian:debian_linux:10.0
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: Exploits are available
Patch Publication Date: 12/7/2022
Vulnerability Publication Date: 6/24/2022