CVE-2010-4170 Information

Description

The staprun runtime tool in SystemTap 1.3 does not properly clear the environment before executing modprobe which allows local users to gain privileges by setting the MODPROBE_OPTIONS environment variable to specify a malicious configuration file.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051115.html http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051122.html http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051127.html http://packetstormsecurity.com/files/152569/SystemTap-1.3-MODPROBE_OPTIONS-Privilege-Escalation.html http://secunia.com/advisories/42256 http://secunia.com/advisories/42263 http://secunia.com/advisories/42306 http://secunia.com/advisories/42318 http://secunia.com/advisories/46920 http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commit;h=b7565b41228bea196cefa3a7d43ab67f8f9152e2 http://sources.redhat.com/ml/systemtap/2010-q4/msg00230.html http://www.debian.org/security/2011/dsa-2348 http://www.exploit-db.com/exploits/15620 http://www.redhat.com/support/errata/RHSA-2010-0894.html http://www.redhat.com/support/errata/RHSA-2010-0895.html http://www.securityfocus.com/bid/44914 http://www.securitytracker.com/id?1024754 https://exchange.xforce.ibmcloud.com/vulnerabilities/63344 https://www.exploit-db.com/exploits/46730/