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Date: Tue, 29 Oct 2013 14:44:29 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com, joernchen@...noelit.de
Subject: Re: CVE Request: sup MUA Command Injection
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On 10/29/2013 01:30 PM, Salvatore Bonaccorso wrote:
> Hi,
>
> On full-disclosure list there was reported a command injection
> vulnerability in 'sup', a console-based email client.
>
> [0]
> http://rubyforge.org/pipermail/sup-talk/2013-October/004996.html
> [1] http://seclists.org/fulldisclosure/2013/Oct/272
>
> For reference quoting the upstream announce:
>
> ----cut---------cut---------cut---------cut---------cut---------cut-----
>
>
Greetings,
>
> Security advisory (#SBU1) for Sup
>
> We have been notified of an potential exploit in the somewhat
> careless way Sup treats attachment metadata in received e-mails.
> The issues should now be fixed and I have released Sup 0.13.2.1 and
> 0.14.1.1 which incorporates these fixes. Please upgrade immediately
> and also ensure that your mime-decode or mime-view hooks are secure
> [0], [1].
>
> This is specifically related to using quotes (',") around filename
> or content_type which is already escaped using Ruby
> Shellwords.escape - this means that the string (content_type,
> filename) is intended to be used _without_ any further quotes.
> Please make sure that if you use .mailcap (non OSX systems), you do
> not quote the string.
>
> Credit goes to: joernchen of Phenoelit (http://phenoelit.de) who
> discovered and suggested fixes for these issues.
>
> [0] https://github.com/sup-heliotrope/sup/wiki/Viewing-Attachments
> [1] https://github.com/sup-heliotrope/sup/wiki/Secure-usage-of-Sup
>
> You can use 'gem' to upgrade or install sup. Please report any
> issues to: https://github.com/sup-heliotrope/sup/issues
>
> Regards, Gaute
> ----cut---------cut---------cut---------cut---------cut---------cut-----
>
> Upstream fixed (as mentioned in announce) the issue in 0.13.2.1
> and 0.14.1.1. Commits:
>
> [2]
> https://github.com/sup-heliotrope/sup/compare/release-0.13.2...release-0.13.2.1
>
>
[3]
https://github.com/sup-heliotrope/sup/compare/release-0.14.1...release-0.14.1.1
>
> Could a CVE be assigned for this issue?
>
> Regards, Salvatore
>
Please use CVE-2013-4478 for this issue.
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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