GHSA-xq5j-gw7f-jgj8

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Source
https://github.com/advisories/GHSA-xq5j-gw7f-jgj8
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/07/GHSA-xq5j-gw7f-jgj8/GHSA-xq5j-gw7f-jgj8.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-xq5j-gw7f-jgj8
Aliases
Published
2020-07-07T16:34:10Z
Modified
2023-11-01T04:53:43.750930Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
Summary
CSRF Vulnerability in rails-ujs
Details

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:

link_to params

to code like this:

link_to filtered_params

def filtered_params
  # Filter just the parameters that you trust
end
References

Affected packages

RubyGems / actionview

Package

Name
actionview
Purl
pkg:gem/actionview

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0
Fixed
5.2.4.3

Affected versions

5.*

5.0.0
5.0.0.1
5.0.1.rc1
5.0.1.rc2
5.0.1
5.0.2.rc1
5.0.2
5.0.3
5.0.4.rc1
5.0.4
5.0.5.rc1
5.0.5.rc2
5.0.5
5.0.6.rc1
5.0.6
5.0.7
5.0.7.1
5.0.7.2
5.1.0.beta1
5.1.0.rc1
5.1.0.rc2
5.1.0
5.1.1
5.1.2.rc1
5.1.2
5.1.3.rc1
5.1.3.rc2
5.1.3.rc3
5.1.3
5.1.4.rc1
5.1.4
5.1.5.rc1
5.1.5
5.1.6
5.1.6.1
5.1.6.2
5.1.7.rc1
5.1.7
5.2.0.beta1
5.2.0.beta2
5.2.0.rc1
5.2.0.rc2
5.2.0
5.2.1.rc1
5.2.1
5.2.1.1
5.2.2.rc1
5.2.2
5.2.2.1
5.2.3.rc1
5.2.3
5.2.4.rc1
5.2.4
5.2.4.1
5.2.4.2

Database specific

{
    "last_known_affected_version_range": "<= 5.2.4.2"
}

RubyGems / actionview

Package

Name
actionview
Purl
pkg:gem/actionview

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.0.3.1

Affected versions

6.*

6.0.0
6.0.1.rc1
6.0.1
6.0.2.rc1
6.0.2.rc2
6.0.2
6.0.2.1
6.0.2.2
6.0.3.rc1
6.0.3

Database specific

{
    "last_known_affected_version_range": "<= 6.0.3"
}