[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Thu, 18 Jun 2015 23:12:12 -0700
From: Reed Loden <reed@...dloden.com>
To: oss-security@...ts.openwall.com,
Assign a CVE Identifier <cve-assign@...re.org>
Subject: Re: CVE request: Content type spoofing in ruby gem paperclip <4.2.2
OSVDB noticed that this seems to be CVE-2015-2963
http://jvn.jp/en/jp/JVN83881261/index.html (no idea why they call it an
XSS)
https://robots.thoughtbot.com/paperclip-security-release is the official
notification and just references the commit message.
~reed
On Thu, Jun 18, 2015 at 1:56 AM, Reed Loden <reed@...dloden.com> wrote:
> Saw this in paperclip's NEWS file, and I couldn't find a CVE for it.
>
>
> https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57
>
> """"
> There is an issue where if an HTML file is uploaded with a .html
> extension, but the content type is listed as being `image/jpeg`, this
> will bypass a validation checking for images. But it will also pass the
> spoof check, because a file named .html and containing actual HTML
> passes the spoof check.
>
> This change makes it so that we also check the supplied content type. So
> even if the file contains HTML and ends with .html, it doesn't match the
> content type of `image/jpeg` and so it fails.
> """"
>
> Fixed in paperclip 4.2.2.
>
> ~reed
>
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
