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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017610 advisory.

    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.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2021-22904)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2021-22904)

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2108-1 advisory.

  - 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. (CVE-2021-22904)

  - Action Pack is a framework for handling and responding to web requests. Under certain circumstances     response bodies will not be closed. In the event a response is *not* notified of a `close`,     `ActionDispatch::Executor` will not know to reset thread local state for the next request. This can lead     to data being leaked to subsequent requests.This has been fixed in Rails 7.0.2.1, 6.1.4.5, 6.0.4.5, and     5.2.6.1. Upgrading is highly recommended, but to work around this problem a middleware described in GHSA-     wh98-p28r-vrc9 can be used. (CVE-2022-23633)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4702 advisory.

    Red Hat Satellite is a systems management tool for Linux-based     infrastructure. It allows for provisioning, remote management, and     monitoring of multiple Linux deployments with a single centralized tool.

    Security Fix(es):
    * python-ecdsa: Unexpected and undocumented exceptions during signature decoding (CVE-2019-14853)
    * python-ecdsa: DER encoding is not being verified in signatures (CVE-2019-14859)
    * rubygem-activerecord-session_store: hijack sessions by using timing attacks targeting the session id     (CVE-2019-25025)
    * rake: OS Command Injection via egrep in Rake::FileList (CVE-2020-8130)
    * candlepin: guava - local information disclosure via temporary directory created with unsafe permissions     (CVE-2020-8908)
    * PyYAML: incomplete fix for CVE-2020-1747 (CVE-2020-14343)
    * tfm-rubygem-nokogiri: XML external entity injection via Nokogiri::XML::Schema (CVE-2020-26247)
    * tfm-rubygem-foreman_azure_rm: Azure compute resource secret_key leak to authenticated users     (CVE-2021-3413)
    * foreman: possible man-in-the-middle in smart_proxy realm_freeipa (CVE-2021-3494)
    * foreman: BMC controller credential leak via API (CVE-2021-20256)
    * python-aiohttp: Open redirect in aiohttp.web_middlewares.normalize_path_middleware (CVE-2021-21330)
    * rubygem-actionpack: Possible Information Disclosure / Unintended Method Execution in Action Pack     (CVE-2021-22885)
    * tfm-rubygem-actionpack: rails: Possible Denial of Service vulnerability in Action Dispatch     (CVE-2021-22902)
    * tfm-rubygem-actionpack: Possible DoS Vulnerability in Action Controller Token Authentication     (CVE-2021-22904)
    * python-django: potential directory-traversal via uploaded files (CVE-2021-28658)
    * tfm-rubygem-puma: incomplete fix for CVE-2019-16770 allows Denial of Service (DoS) (CVE-2021-29509)
    * python-django: Potential directory-traversal via uploaded files (CVE-2021-31542)
    * tfm-rubygem-addressable: ReDoS in templates (CVE-2021-32740)
    * python-django: Potential directory traversal via ``admindocs`` (CVE-2021-33203)
    * python-urllib3: ReDoS in the parsing of authority part of URL (CVE-2021-33503)
    * python-django: Possible indeterminate SSRF, RFI, and LFI attacks since validators accepted leading zeros     in IPv4 addresses (CVE-2021-33571)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page(s) listed in the References section.

    Additional Changes:

    * Updated Content Management backend with Pulp 3 for increased performance, scale and reliability. MongoDB     is also removed from Satellite
    * Adds support for Azure GovCloud
    * Provides Satellite 6.10 Server support for Satellite 6.9 Capsules
    * Improves support for Satellite Air Gapped and Disconnected environments
    * Adds Ansible Collections content type to support disconnected environments
    * Foreman_webhooks introduced to replace foreman_hooks
    * Introduces UI to manage Personal Access Tokens
    * Adds ability to configure Pulp repository synchronization timeouts
    * Support for Convert2RHEL
    * Provides advanced options when registering a host
    * Supports remediation playbook signatures from console.redhat.com
    * Red Hat Insights Plugin replaced through new integration within Satellite
    * Ability to visually represent systems registered and in sync with Insights
    * Ability to verify if required packages are installed as part of pre-upgrade check
    * Ability to unset environment variables when installer is running
    * Ability to turn backups on and off when cleaning up tasks from database

    The items above are not a complete list of changes. This update also fixes     several bugs and adds various enhancements. Documentation for these changes     is available from the Release Notes document linked to in the References     section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Multiple security issues were discovered in the Rails web framework which could result in denial of service.

CVE-2021-22885

There is a possible information disclosure/unintended method execution vulnerability in Action Pack when using the `redirect_to` or `polymorphic_url` helper with untrusted user input.

CVE-2021-22904

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.

For Debian 9 stretch, these problems have been fixed in version 2:4.2.7.1-1+deb9u5.

We recommend that you upgrade your rails packages.

For the detailed security status of rails please refer to its security tracker page at: https://security-tracker.debian.org/tracker/rails

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Ruby on Rails blog :

Rails versions 6.1.3.2, 6.0.3.7, and 5.2.6 have been released! These releases contain important security fixes. Here is a list of the issues fixed :

CVE-2021-22885: Possible Information Disclosure / Unintended Method Execution in Action Pack

CVE-2021-22902: Possible Denial of Service vulnerability in Action Dispatch

CVE-2021-22903: Possible Open Redirect Vulnerability in Action Pack

CVE-2021-22904: Possible DoS Vulnerability in Action Controller Token Authentication

ID	Name	Product	Family	Type	Severity
313882	Unity Linux 20.1060e / 20.1070e Security Update: rubygem-actionpack (UTSA-2026-017610)	Nessus	Unity Linux Local Security Checks	Local	high
256452	Linux Distros Unpatched Vulnerability : CVE-2021-22904	Nessus	Misc.	Local	high
412310	SCA: security update for actionpack (GHSA-7wjx-3g7j-8584)	Tenable Cloud Security	SCA Checks	Local	high
412310	SCA: security update for actionpack (GHSA-7wjx-3g7j-8584)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
162378	SUSE SLES15 Security Update : rubygem-actionpack-5_1, rubygem-activesupport-5_1 (SUSE-SU-2022:2108-1)	Nessus	SuSE Local Security Checks	Local	medium
155377	RHEL 7 : Satellite 6.10 Release (Moderate) (RHSA-2021:4702)	Nessus	Red Hat Local Security Checks	Local	critical
150704	Debian DSA-4929-1 : rails - security update	Nessus	Debian Local Security Checks	Local	high
149427	Debian DLA-2655-1 : rails security update	Nessus	Debian Local Security Checks	Local	high
149360	FreeBSD : Rails -- multiple vulnerabilities (f7a00ad7-ae75-11eb-8113-08002728f74c)	Nessus	FreeBSD Local Security Checks	Local	high

Detections

Analytics

CVE-2021-22904

high

Tenable Plugins

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medium

critical

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high