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Message-ID: <CABYiri9o47kp=Q5DgXpw3Gr2_DnSXXO_3h6hqbLpkraw8u_T8g@mail.gmail.com>
Date: Fri, 23 Aug 2013 00:36:38 +0400
From: Andrey Korolyov <andrey@...l.ru>
To: kseifried@...hat.com
Cc: oss-security@...ts.openwall.com
Subject: Re: Possibly insecure permissions on sshd_config in
Debian-based distros
On Fri, Aug 23, 2013 at 12:20 AM, Kurt Seifried <kseifried@...hat.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 08/22/2013 12:10 PM, Andrey Korolyov wrote:
>> Hello,
>>
>> At least both Precise and Wheezy has 0644 mask on this file so an
>> unprivileged local user can obtain some sensitive information from
>> it. Though it not CVE-worthy, but quite strange.
>
> Well the default file config would of course be known. I'm reading the
> man page and nothing super secret pops out, e.g. no passwords get
> embedded. Can you give an example of sensitive information in sshd_config?
AllowUsers/AllowGroups/PermitEmptyPasswords
Obtaining such information can shorten time of bruteforce remote attacks.
>
>
>
> - --
> Kurt Seifried Red Hat Security Response Team (SRT)
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