CVE-2014-7829: Actionpack Path Traversal Vulnerability
MODERATECVE-2014-7829 is a MODERATE path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Actionpack libraries in the RubyGems ecosystem. The issue involves directory traversal vulnerability in actionpack. Remediation is available by upgrading affected packages to version 4.1.8, 3.2.21, 4.0.12, 4.2.0.beta4.
CVE-2014-7829 at a Glance
How to Fix CVE-2014-7829
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 4.1.8Upgrade actionpack to 3.2.21Upgrade actionpack to 4.0.12Upgrade actionpack to 4.2.0.beta4Run 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-2014-7829, 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 4.1.8), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. 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-2014-7829 Affected Actionpack Versions
4 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
actionpack
|
RubyGems |
≥ 4.1.0
< 4.1.8
|
4.1.8
|
|
actionpack
|
RubyGems |
≥ 3.0.0
< 3.2.21
|
3.2.21
|
|
actionpack
|
RubyGems |
≥ 4.0.0
< 4.0.12
|
4.0.12
|
|
actionpack
|
RubyGems |
≥ 4.2.0.beta1
< 4.2.0.beta4
|
4.2.0.beta4
|
References
Frequently Asked Questions
What is CVE-2014-7829?
Which Actionpack versions are affected?
What version fixes CVE-2014-7829?
Is actionpack affected?
What CWE is associated with CVE-2014-7829?
How can I check RubyGems dependencies for CVE-2014-7829?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-h56m-vwxc-3qpw",
"modified" : "2023-08-25T19:56:49Z",
"published" : "2017-10-24T18:33:36Z",
"aliases" : [ "CVE-2014-7829" ],
"summary" : "Directory traversal vulnerability in actionpack",
"details" : "Directory traversal vulnerability in actionpack/lib/action_dispatch/middleware/static.rb in Action Pack in Ruby on Rails 3.x before 3.2.21, 4.0.x before 4.0.12, 4.1.x before 4.1.8, and 4.2.x before 4.2.0.beta4, when serve_static_assets is enabled, allows remote attackers to determine the existence of files outside the application root via vectors involving a \\ (backslash) character, a similar issue to CVE-2014-7818.",
"severity" : [ ],
"affected" : [ {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.1.0"
}, {
"fixed" : "4.1.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "3.0.0"
}, {
"fixed" : "3.2.21"
} ]
} ]
}, {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.0.0"
}, {
"fixed" : "4.0.12"
} ]
} ]
}, {
"package" : {
"ecosystem" : "RubyGems",
"name" : "actionpack"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.2.0.beta1"
}, {
"fixed" : "4.2.0.beta4"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2014-7829"
}, {
"type" : "ADVISORY",
"url" : "https://github.com/advisories/GHSA-h56m-vwxc-3qpw"
}, {
"type" : "WEB",
"url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2014-7829.yml"
}, {
"type" : "WEB",
"url" : "https://groups.google.com/forum/#!topic/rubyonrails-security/rMTQy4oRCGk"
}, {
"type" : "WEB",
"url" : "https://groups.google.com/forum/message/raw?msg=rubyonrails-security/rMTQy4oRCGk/loS_CRS8mNEJ"
}, {
"type" : "WEB",
"url" : "https://puppet.com/security/cve/cve-2014-7829"
}, {
"type" : "WEB",
"url" : "https://web.archive.org/web/20160403085126/http://www.securityfocus.com/bid/71183"
}, {
"type" : "WEB",
"url" : "http://lists.opensuse.org/opensuse-updates/2014-11/msg00112.html"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2020-06-17T16:30:46Z",
"nvd_published_at" : "2014-11-18T23:59:00Z"
}
}