gsd-2021-22904
Vulnerability from gsd
Modified
2021-05-05 00:00
Details
There is a possible DoS vulnerability in the Token Authentication logic in
Action Controller. This vulnerability has been assigned the CVE identifier
CVE-2021-22904.
Versions Affected: >= 4.0.0
Not affected: < 4.0.0
Fixed Versions: 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6
Impact
------
Impacted code uses `authenticate_or_request_with_http_token` or
`authenticate_with_http_token` for request authentication. Impacted code will
look something like this:
```
class PostsController < ApplicationController
before_action :authenticate
private
def authenticate
authenticate_or_request_with_http_token do |token, options|
# ...
end
end
end
```
All users running an affected release should either upgrade or use one of the
workarounds immediately.
Releases
--------
The fixed releases are available at the normal locations.
Workarounds
-----------
The following monkey patch placed in an initializer can be used to work around
the issue:
```ruby
module ActionController::HttpAuthentication::Token
AUTHN_PAIR_DELIMITERS = /(?:,|;|\t)/
end
```
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-22904",
"description": "The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses `authenticate_or_request_with_http_token` or `authenticate_with_http_token` for request authentication.",
"id": "GSD-2021-22904",
"references": [
"https://www.suse.com/security/cve/CVE-2021-22904.html",
"https://www.debian.org/security/2021/dsa-4929",
"https://access.redhat.com/errata/RHSA-2021:4702",
"https://security.archlinux.org/CVE-2021-22904"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "actionpack",
"purl": "pkg:gem/actionpack"
}
}
],
"aliases": [
"CVE-2021-22904",
"GHSA-7wjx-3g7j-8584"
],
"details": "There is a possible DoS vulnerability in the Token Authentication logic in\nAction Controller. This vulnerability has been assigned the CVE identifier\nCVE-2021-22904.\n\nVersions Affected: \u003e= 4.0.0\nNot affected: \u003c 4.0.0\nFixed Versions: 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6\n\nImpact\n------\nImpacted code uses `authenticate_or_request_with_http_token` or\n`authenticate_with_http_token` for request authentication. Impacted code will\nlook something like this:\n\n```\nclass PostsController \u003c ApplicationController\n before_action :authenticate\n\n private\n\n def authenticate\n authenticate_or_request_with_http_token do |token, options|\n # ...\n end\n end\nend\n```\n\nAll users running an affected release should either upgrade or use one of the\nworkarounds immediately.\n\nReleases\n--------\nThe fixed releases are available at the normal locations.\n\nWorkarounds\n-----------\nThe following monkey patch placed in an initializer can be used to work around\nthe issue:\n\n```ruby\nmodule ActionController::HttpAuthentication::Token\n AUTHN_PAIR_DELIMITERS = /(?:,|;|\\t)/\nend\n```\n",
"id": "GSD-2021-22904",
"modified": "2021-05-05T00:00:00.000Z",
"published": "2021-05-05T00:00:00.000Z",
"references": [
{
"type": "WEB",
"url": "https://groups.google.com/g/rubyonrails-security/c/Pf1TjkOBdyQ"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": 7.5,
"type": "CVSS_V3"
}
],
"summary": "Possible DoS Vulnerability in Action Controller Token Authentication"
}
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"date": "2021-05-05",
"description": "There is a possible DoS vulnerability in the Token Authentication logic in\nAction Controller. This vulnerability has been assigned the CVE identifier\nCVE-2021-22904.\n\nVersions Affected: \u003e= 4.0.0\nNot affected: \u003c 4.0.0\nFixed Versions: 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6\n\nImpact\n------\nImpacted code uses `authenticate_or_request_with_http_token` or\n`authenticate_with_http_token` for request authentication. Impacted code will\nlook something like this:\n\n```\nclass PostsController \u003c ApplicationController\n before_action :authenticate\n\n private\n\n def authenticate\n authenticate_or_request_with_http_token do |token, options|\n # ...\n end\n end\nend\n```\n\nAll users running an affected release should either upgrade or use one of the\nworkarounds immediately.\n\nReleases\n--------\nThe fixed releases are available at the normal locations.\n\nWorkarounds\n-----------\nThe following monkey patch placed in an initializer can be used to work around\nthe issue:\n\n```ruby\nmodule ActionController::HttpAuthentication::Token\n AUTHN_PAIR_DELIMITERS = /(?:,|;|\\t)/\nend\n```\n",
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"~\u003e 6.0.3, \u003e= 6.0.3.7",
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"title": "Possible DoS Vulnerability in Action Controller Token Authentication",
"unaffected_versions": [
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"url": "https://groups.google.com/g/rubyonrails-security/c/Pf1TjkOBdyQ"
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],
"date": "2021-09-20",
"description": "The actionpack ruby gem suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses `authenticate_or_request_with_http_token` or `authenticate_with_http_token` for request authentication.",
"fixed_versions": [
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"identifier": "CVE-2021-22904",
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"package_slug": "gem/actionpack",
"pubdate": "2021-06-11",
"solution": "Upgrade to versions 5.2.4.6, 5.2.6, 6.0.3.7, 6.1.3.2 or above.",
"title": "Uncontrolled Resource Consumption",
"urls": [
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"https://hackerone.com/reports/1101125",
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"date": "2021-09-20",
"description": "There is a possible DoS vulnerability in the Token Authentication logic in Action Controller. Impacted code uses `authenticate_or_request_with_http_token` or `authenticate_with_http_token` for request authentication. ",
"fixed_versions": [
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"package_slug": "gem/rails",
"pubdate": "2021-06-11",
"solution": "Upgrade to versions 5.2.4.6, 5.2.6, 6.0.3.7, 6.1.3.2 or above.",
"title": "Uncontrolled Resource Consumption",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-22904",
"https://groups.google.com/g/rubyonrails-security/c/Pf1TjkOBdyQ"
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
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"impactScore": 3.6
}
},
"lastModifiedDate": "2021-09-20T13:51Z",
"publishedDate": "2021-06-11T16:15Z"
}
}
}
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