Date: Wed, 18 Jan 2012 22:14:43 -0700 From: Kurt Seifried <kseifried@...hat.com> To: oss-security@...ts.openwall.com CC: Vincent Danen <vdanen@...hat.com>, crak.otaku@...il.com Subject: Re: CVE request: tucan insecure plugin update mechanism On 01/18/2012 07:12 PM, Vincent Danen wrote: > Saw a Debian bug report about tucan and how it insecurely handles > "plugin" updates (which are basically python scripts). These "plugins" > are executed with the privileges of the user running tucan, and because > there is no authenticity checking (plugins are not signed, doesn't look > like there are any certificate checks when connecting to the update > server, etc.), it's prone to MITM attacks where an attacker could > basically run arbitrary code as the user running tucan. > > I'm not sure how popular this program is or how widely used, but this is > definitely not good design. > > References: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656388 > https://bugzilla.redhat.com/show_bug.cgi?id=782999 > http://code.google.com/p/tucan/ > > (I'm cc'ing who I hope is one of the lead developers, although it > doesn't look like much development has been done in the last year) > Please use CVE-2012-0063 for this issue. -- -- Kurt Seifried / Red Hat Security Response Team
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