MEDIUM 4.3
GHSA-jp5v-5gx4-jmj9
Ability to forge per-form CSRF tokens in Rails
상세
It is possible to, given a global CSRF token such as the one present in the authenticity_token meta tag, forge a per-form CSRF token for any action for that session.
Impact ------
Given the ability to extract the global CSRF token, an attacker would be able to construct a per-form CSRF token for that session.
Workarounds -----------
This is a low-severity security issue. As such, no workaround is necessarily until such time as the application can be upgraded.
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참고
- https://nvd.nist.gov/vuln/detail/CVE-2020-8166 [ADVISORY]
- https://hackerone.com/reports/732415 [WEB]
- https://github.com/rails/rails [PACKAGE]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2020-8166.yml [WEB]
- https://groups.google.com/forum/#!topic/rubyonrails-security/NOjKiGeXUgw [WEB]
- https://groups.google.com/g/rubyonrails-security/c/NOjKiGeXUgw [WEB]
- https://www.debian.org/security/2020/dsa-4766 [WEB]