Date: Thu, 01 Mar 2012 22:29:31 -0700 From: Kurt Seifried <kseifried@...hat.com> To: oss-security@...ts.openwall.com CC: Ludwig Nussel <ludwig.nussel@...e.de>, Dan Williams <dcbw@...hat.com> Subject: Re: CVE Request: NetworkManager arbitrary file access On 02/29/2012 02:48 AM, Ludwig Nussel wrote: > Hi, > > Connections in NetworkManager 0.9 store path names to certificates and > key files. That means NM (or rather wpa_supplicant which gets > configured by NM) accesses the user's files as root. A user who is > allowed to add connections (default for locally logged in users) may > specify arbitrary file names. NM happily accepts files of any other > user, including root and even device files. Fortunately it's read > access only. > > The safe approach would be to stream the actual content of the > certificate and key files to NM and have NM store that directly. > In fact NM 0.7 does just that for system connections (but forgets to > store the key so those connections won't actually work). > > NM 0.6 is also affected. > > Reproducer for NM 0.9 attached, you need to edit the file names and > then run e.g. > $ nmw.py new wlan0 yourssid > > cu > Ludwig > Please use CVE-2012-1096 for this issue. -- Kurt Seifried Red Hat Security Response Team (SRT)
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