Red Hat Bugzilla – Bug 1164659
CVE-2014-7829 rubygem-actionpack: incomplete fix for CVE-2014-7818, arbitrary file existence disclosure
Last modified: 2016-04-26 10:20:06 EDT
The following Ruby on Rails issue was reported: "" Arbitrary file existence disclosure in Action Pack There is an information leak vulnerability in Action Pack. This vulnerability has been assigned the CVE identifier CVE-2014-7829. Versions Affected: >= 3.0.0 Not affected: <= 3.0.0, 4.2.0.beta4 Fixed Versions: 3.2.21, 4.0.12, 4.1.8 Impact ------ Specially crafted requests can be used to determine whether a file exists on the filesystem that is outside the Rails application's root directory. The files will not be served, but attackers can determine whether or not the file exists. This vulnerability is very similar to CVE-2014-7818, but the specially crafted string is slightly different. This only impacts Rails applications that enable static file serving at runtime. For example, the application's production configuration will say: config.serve_static_assets = true All users running an affected release should either upgrade or use one of the work arounds immediately. Releases -------- The 3.2.21, 4.0.12 & 4.1.8 releases are available at the normal locations. Workarounds ----------- To work around this issue, set config.serve_static_assets = false in an initializer. This work around will not be possible in all hosting environments and upgrading is advised. "" Acknowledgements: Red Hat would like to thank the Ruby on Rails project for reporting this issue. Upstream acknowledges Behrouz Sadeghipour, Patrick Toomey of GitHub, and Remon Oldenbeuving of hackerone as the original, independent reporters.
Created attachment 958144 [details] 3.1 patch from upstream
Created attachment 958145 [details] 3.2 patch from upstream
Created attachment 958146 [details] 4.0 patch from upstream
Created attachment 958147 [details] 4.1 patch from upstream
This is public now: http://seclists.org/oss-sec/2014/q4/648
Created rubygem-actionpack tracking bugs for this issue: Affects: fedora-all [bug 1165077]
Upstream announcement: http://weblog.rubyonrails.org/2014/11/17/Rails-3-2-21-4-0-12-and-4-1-8-have-been-released/ Upstream commits (3.2, 4.0, 4.1): https://github.com/rails/rails/commit/307402febd448646df796e7dabbbaa5734f641aa https://github.com/rails/rails/commit/0d0bc45188425016458e6408e517e7fc1784de49 https://github.com/rails/rails/commit/bd697a108a16199065363e58abeed3747a80e30f
rubygem-actionpack-4.1.5-2.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
rubygem-actionpack-4.0.0-5.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.