Описание
Possible XSS vulnerability with certain configurations of rails-html-sanitizer
Summary
There is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.
- Versions affected: ALL
- Not affected: NONE
- Fixed versions: 1.4.4
Impact
A 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 in either of the following ways:
- allow both "math" and "style" elements,
- or allow both "svg" and "style" elements
Code is only impacted if allowed tags are being overridden. Applications may be doing this in four different ways:
- using application configuration:
see https://guides.rubyonrails.org/configuring.html#configuring-action-view
- using a
:tagsoption to the Action View helpersanitize:
see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize
- using Rails::Html::SafeListSanitizer class method
allowed_tags=:
- using a
:tagsoptions to the Rails::Html::SafeListSanitizer instance methodsanitize:
All users overriding the allowed tags by any of the above mechanisms to include (("math" or "svg") and "style") should either upgrade or use one of the workarounds immediately.
Workarounds
Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.
References
- CWE - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (4.9)
- https://hackerone.com/reports/1656627
Credit
This vulnerability was responsibly reported by Dominic Breuker.
Ссылки
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h
- https://nvd.nist.gov/vuln/detail/CVE-2022-23519
- https://hackerone.com/reports/1656627
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23519.yml
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
Пакеты
rails-html-sanitizer
< 1.4.4
1.4.4
Связанные уязвимости
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a 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 in either of the following ways: allow both "math" and "style" elements, or allow both "svg" and "style" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include "math" or "svg" and "style" should either upgrade or use the following workaround immediately: Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a 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 in either of the following ways: allow both "math" and "style" elements, or allow both "svg" and "style" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include "math" or "svg" and "style" should either upgrade or use the following workaround immediately: Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a 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 in either of the following ways: allow both "math" and "style" elements, or allow both "svg" and "style" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include "math" or "svg" and "style" should either upgrade or use the following workaround immediately: Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.
rails-html-sanitizer is responsible for sanitizing HTML fragments in R ...
Уязвимость реализации конфигурации инструмента очистки HTML для приложений Rails Rails Html Sanitizer, связанная с неправильной нейтрализацией входных данных во время генерации веб-страницы, позволяющая нарушителю проводить межсайтовые сценарные атаки