Date: Mon, 29 Sep 2014 17:27:24 +0000 From: Ramon de C Valle <rcvalle@...are.com> To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com> CC: "chet.ramey@...e.edu" <chet.ramey@...e.edu>, Christos Zoulas <christos@...las.com> Subject: Re: CVE-2014-6271: remote code execution through bash (3rd vulnerability) On Sep 26, 2014, at 5:52 PM, Bryan Drewery <bdrewery@...eBSD.org> wrote: > On 9/26/2014 9:13 AM, Christos Zoulas wrote: >> On Sep 26, 1:47pm, john.haxby@...cle.com (John Haxby) wrote: >> -- Subject: Re: [oss-security] Re: CVE-2014-6271: remote code execution throu >> >> | It's not so much the known attacks -- redefining ls, unset, command, >> | typeset, declare, etc -- it's the future parser bugs that we don't yet >> | know about. >> | >> | A friend of mine said this could be a vulnerability gift that keeps on >> | giving. >> >> I think that at this point the conservative approach is best, so >> until the bash author figures what the best solution is, the feature >> is disabled by default for NetBSD. It is not wise to expose bash's >> parser to the internet and then debug it live while being attacked. >> >> christos >> > > FreeBSD has taken a similar approach. We have used Christos' patch and > disabled the feature by default. > > https://svnweb.freebsd.org/changeset/ports/369341 > > Regards, > Bryan Drewery > In addition to Florian’s and upstream's patches, VMware has also used Christos’ patch and disabled the feature by default on all its virtual appliances across all its product line. -- Ramon de C Valle VMware Product Security Engineering Download attachment "signature.asc" of type "application/pgp-signature" (843 bytes)
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