Date: Wed, 28 Oct 2015 11:42:18 +0100 From: Sebastian Krahmer <krahmer@...e.com> To: oss-security@...ts.openwall.com Cc: clement.lefebvre@...uxmint.com Subject: csd-datetime forgets to authorize users Hi The csd-datetime-setting SetDate DBUS function apparently forgets to check the polkit authorization for the caller. Unlike SetTime. At least I couldnt find any restriction that its not callable by users. Bug and patch proposal is here: https://bugzilla.suse.com/show_bug.cgi?id=951830 I am not big fan of calling binaries from inside DBUS functions, but seems to be state of the art in desktop programming and doesnt look exploitable. Yet, w/o authorization you may run into vulnerabilities like the sudo time-ticket stuff. csd seems to be fork of gnome-settings-daemon but to my knowledge they dont offer a set_date(), at least in the version I looked at. So this issue seems to be introduced by csd itself. If upstream (cc) confirms, can someone please assign a CVE? Sebastian -- ~ perl self.pl ~ $_='print"\$_=\47$_\47;eval"';eval ~ krahmer@...e.com - SuSE Security Team
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