oss-sec mailing list archives
Re: CVE Request: NetworkManager arbitrary file access
From: Kurt Seifried <kseifried () redhat com>
Date: Thu, 01 Mar 2012 22:29:31 -0700
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)
Current thread:
- CVE Request: NetworkManager arbitrary file access Ludwig Nussel (Feb 29)
- Re: CVE Request: NetworkManager arbitrary file access Kurt Seifried (Mar 01)