Date: Wed, 10 Nov 2010 14:40:00 -0500 (EST) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: coley <coley@...re.org> Subject: Re: CVE request: mono loading shared libs from cwd Please use CVE-2010-4159 Thanks. -- JB ----- "Thomas Biege" <thomas@...e.de> wrote: > missed to add: > http://lists.ximian.com/pipermail/mono-patches/2010-October/177900.html > > Am Mittwoch 10 November 2010 15:18:26 schrieb Thomas Biege: > > Hello folks, > > > > from our bugzilla. > > > > " > > http://www.mono-project.com/DllNotFoundException explains that the > mono > > runtime > > searches the current working directory for DLLs. This opens a > serious > > security > > hole. Malicious code can be given the same name as a DLL and left > in a > > directory the user might visit. Also, it means that no mono > application > > can safely set the current working directory. > > > > Microsoft themselves addressed this issue in Windows > > http://msdn.microsoft.com/en-us/library/ms682586(v=VS.85).aspx > > > > It's a well known "dummies" question for Unix why you must not have > "." on > > your > > path > > > http://www.unix.com/unix-dummies-questions-answers/22806-why-bad-idea-inser > > t- dot-path.html > > > > Mono is exposing users to these same old hat problems. > > > > (As a related problem, many mono programs seem to *assume* that they > will > > be run with the CWD set to their installed directory, and break if > it > > isn't.) " > > > > Filed by Richard Brooksby. > > > > -- > Thomas Biege <thomas@...e.de>, SUSE LINUX, Security Support & > Auditing > SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nuernberg) > -- > Wer aufhoert besser werden zu wollen, hoert auf gut zu sein. > -- Marie von Ebner-Eschenbach
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