GHSA-W542-CPP9-R3G7
Vulnerability from github – Published: 2020-08-05 14:53 – Updated: 2023-07-05 20:19The Field Test dashboard is vulnerable to cross-site request forgery (CSRF) with non-session based authentication methods in versions v0.2.0 through v0.3.2.
Impact
The Field Test dashboard is vulnerable to CSRF with non-session based authentication methods, like basic authentication. Session-based authentication methods (like Devise's default authentication) are not affected.
A CSRF attack works by getting an authorized user to visit a malicious website and then performing requests on behalf of the user. In this instance, a single endpoint is affected, which allows for changing the variant assigned to a user.
All users running an affected release should upgrade immediately.
Technical Details
Field Test uses the protect_from_forgery method from Rails to prevent CSRF. However, this defaults to :null_session, which has no effect on non-session based authentication methods. This has been changed to protect_from_forgery with: :exception.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.3.2"
},
"package": {
"ecosystem": "RubyGems",
"name": "field_test"
},
"ranges": [
{
"events": [
{
"introduced": "0.2.0"
},
{
"fixed": "0.4.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-16252"
],
"database_specific": {
"cwe_ids": [
"CWE-352"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-05T14:47:06Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "The Field Test dashboard is vulnerable to cross-site request forgery (CSRF) with non-session based authentication methods in versions v0.2.0 through v0.3.2.\n\n## Impact\nThe Field Test dashboard is vulnerable to CSRF with non-session based authentication methods, like basic authentication. Session-based authentication methods (like Devise\u0027s default authentication) are not affected.\n\nA CSRF attack works by getting an authorized user to visit a malicious website and then performing requests on behalf of the user. In this instance, a single endpoint is affected, which allows for changing the variant assigned to a user.\n\nAll users running an affected release should upgrade immediately.\n\n## Technical Details\nField Test uses the `protect_from_forgery` method from Rails to prevent CSRF. However, this defaults to `:null_session`, which has no effect on non-session based authentication methods. This has been changed to `protect_from_forgery with: :exception`.",
"id": "GHSA-w542-cpp9-r3g7",
"modified": "2023-07-05T20:19:49Z",
"published": "2020-08-05T14:53:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16252"
},
{
"type": "WEB",
"url": "https://github.com/ankane/field_test/issues/28"
},
{
"type": "WEB",
"url": "https://github.com/ankane/field_test/commit/defd3fdf457c22d7dc5b3be7048481947bd5f0d0"
},
{
"type": "PACKAGE",
"url": "https://github.com/ankane/field_test"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/field_test/CVE-2020-16252.yml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Field Test CSRF vulnerability"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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