Date: Mon, 8 Jun 1998 17:31:36 +0300 From: Stefan Laudat <ninja@MS54.PROTV.RO> Subject: Security flaw in Accelerated-X 4.1 To: BUGTRAQ@NETSPACE.ORG Hello, I don't know if this was posted before, please accept my appologies if so. Seems like the guys at XiG forgot the meaning of /tmp security ... The main problem is that the Install program of the AcceleratedX package logs all in a file named /tmp/Install.log. So, every user knowing that Mr ReWT is going to install this X server on his box can overwrite any file on the system. The procedure is very simple: ln -s /etc/shadow /tmp/Install.log Oh, some of you may tell me : "What if AcceleratedX is already installed?". There is also an Uninstall.log =-> I think the /tmp/Xaccel.ini is also the temporary file for new configurations, so wait for the root to change something and KAB00M! :)) I am too lazy to cc this to the guys at XiG so please do it if you want. --- Stefan Laudat aka Ninja pager: 2233789 / 4105 email@example.com IRC = Ninja || SSL || Kayden http://www.cpc.pub.ro/~ssl -------------------------------- "Use."