Описание
CSRF Vulnerability in rails-ujs
There is a vulnerability in rails-ujs that allows attackers to send CSRF tokens to wrong domains.
Versions Affected: rails <= 6.0.3 Not affected: Applications which don't use rails-ujs. Fixed Versions: rails >= 5.2.4.3, rails >= 6.0.3.1
Impact
This is a regression of CVE-2015-1840.
In the scenario where an attacker might be able to control the href attribute of an anchor tag or the action attribute of a form tag that will trigger a POST action, the attacker can set the href or action to a cross-origin URL, and the CSRF token will be sent.
Workarounds
To work around this problem, change code that allows users to control the href attribute of an anchor tag or the action attribute of a form tag to filter the user parameters.
For example, code like this:
to code like this:
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2020-8167
- https://hackerone.com/reports/189878
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionview/CVE-2020-8167.yml
- https://groups.google.com/forum/#!topic/rubyonrails-security/x9DixQDG9a0
- https://groups.google.com/g/rubyonrails-security/c/x9DixQDG9a0
- https://www.debian.org/security/2020/dsa-4766
Пакеты
actionview
>= 5.0.0, <= 5.2.4.2
5.2.4.3
actionview
>= 6.0.0, <= 6.0.3
6.0.3.1
Связанные уязвимости
A CSRF vulnerability exists in rails <= 6.0.3 rails-ujs module that could allow attackers to send CSRF tokens to wrong domains.
A CSRF vulnerability exists in rails <= 6.0.3 rails-ujs module that could allow attackers to send CSRF tokens to wrong domains.
A CSRF vulnerability exists in rails <= 6.0.3 rails-ujs module that could allow attackers to send CSRF tokens to wrong domains.
A CSRF vulnerability exists in rails <= 6.0.3 rails-ujs module that co ...
