Title: SGI InPerson Local Privilege Escalation Vulnerability
Severity: HIGH
Description:
SGI InPerson is a networked multimedia conferencing utility. It supports multiple user video and audio conferencing functionality. It currently ships by default with Silicon Graphics Inc.'s IRIX distribution.
A local privilege escalation vulnerability affects SGI InPerson. This issue is due to a design error that causes the application to run insecurely.
The problem presents as 'inpview', an application bundled with InPerson, runs with setuid privileges, fails to drop privileges, and trusts the users environment variables. Specifically the application uses the environment variable 'SUN_TTSESSION_CMD' to execute commands. This will allow an attacker to execute arbitrary commands stored in the offending environment variable with superuser privileges.
An attacker may leverage this issue to gain superuser access to the affected computer.
It should be noted that although it is reported that only InPerson shipped with IRIX 6.5.9 and 6.5.22 are affected, it is likely that other versions are affected as well.
Affected Products:
- SGI IRIX 6.5.22
- SGI IRIX 6.5.22 m
- SGI IRIX 6.5.9
- SGI IRIX 6.5.9f
- SGI IRIX 6.5.9m
- SGI InPerson 0.0.0
References:
- SGI: IRIX Product Page
- SGI: IRIX TechPubs: InPerson
- iDEFENSE: iDEFENSE Security Advisory 01.13.05: SGI IRIX inpview Design Error Vulnerabilit
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