CVE-2024-47887: Actionpack Denial of Service Vulnerability
MODERATECVE-2024-47887 is a MODERATE denial of service vulnerability (CWE-1333: Inefficient Regular Expression Complexity) affecting Actionpack libraries in the RubyGems ecosystem. The issue involves possible redos vulnerability in http token authentication in action controller. Remediation is available by upgrading affected packages to version 6.1.7.9, 7.0.8.5, 7.1.4.1, 7.2.1.1.
CVE-2024-47887 at a Glance
How to Fix CVE-2024-47887
To remediate this vulnerability, upgrade all affected Actionpack dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade actionpack to 6.1.7.9Upgrade actionpack to 7.0.8.5Upgrade actionpack to 7.1.4.1Upgrade actionpack to 7.2.1.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for actionpackHow to Check if You Are Affected
To determine whether your application is affected by CVE-2024-47887, inspect your project dependencies for Actionpack:
inspect dependencies for actionpackAnalyze the terminal output to locate any version of Actionpack in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.1.7.9), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-1333: Inefficient Regular Expression Complexity, where the product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential. In Actionpack, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2024-47887 Affected Actionpack Versions
4 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
actionpack
|
RubyGems |
≥ 4.0.0
< 6.1.7.9
|
6.1.7.9
|
|
actionpack
|
RubyGems |
≥ 7.0.0
< 7.0.8.5
|
7.0.8.5
|
|
actionpack
|
RubyGems |
≥ 7.1.0
< 7.1.4.1
|
7.1.4.1
|
|
actionpack
|
RubyGems |
≥ 7.2.0
< 7.2.1.1
|
7.2.1.1
|
References
Frequently Asked Questions
What is CVE-2024-47887?
Which Actionpack versions are affected?
What version fixes CVE-2024-47887?
Is actionpack affected?
What CWE is associated with CVE-2024-47887?
How can I check RubyGems dependencies for CVE-2024-47887?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-vfg9-r3fq-jvx4",
"modified" : "2024-10-31T19:34:19Z",
"published" : "2024-10-15T23:35:35Z",
"aliases" : [ "CVE-2024-47887" ],
"summary" : "Possible ReDoS vulnerability in HTTP Token authentication in Action Controller",
"details" : "There is a possible ReDoS vulnerability in Action Controller's HTTP Token authentication. This vulnerability has been assigned the CVE identifier CVE-2024-47887.\n\nImpact\n------\n\nFor applications using HTTP Token authentication via `authenticate_or_request_with_http_token` or similar, a carefully crafted header may cause header parsing to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade or apply the relevant patch immediately.\n\nRuby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 depends on Ruby 3.2 or greater so is unaffected.\n\nReleases\n--------\nThe fixed releases are available at the normal locations.\n\nWorkarounds\n-----------\nUsers on Ruby 3.2 are unaffected by this issue.\n\n\nCredits\n-------\nThanks to [scyoon](https://hackerone.com/scyoon) for reporting",
"severity" : [ {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.0.0"
}, {
"fixed" : "6.1.7.9"
} ]
} ]
}, {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "7.0.0"
}, {
"fixed" : "7.0.8.5"
} ]
} ]
}, {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "7.1.0"
}, {
"fixed" : "7.1.4.1"
} ]
} ]
}, {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "7.2.0"
}, {
"fixed" : "7.2.1.1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/rails/rails/security/advisories/GHSA-vfg9-r3fq-jvx4"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/rails/rails"
}, {
"type" : "WEB",
"url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2024-47887.yml"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-1333" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2024-10-15T23:35:35Z",
"nvd_published_at" : "2024-10-16T20:15:06Z"
}
}