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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/63344 ↗
- http://sources.redhat.com/ml/systemtap/2010-q4/msg00230.html ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051127.html ↗
- http://www.exploit-db.com/exploits/15620 ↗
- http://secunia.com/advisories/42263 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051115.html ↗
- http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git%3Ba=commit%3Bh=b7565b41228bea196cefa3a7d43ab67f8f9152e2 ↗
- http://www.redhat.com/support/errata/RHSA-2010-0894.html ↗
- http://www.redhat.com/support/errata/RHSA-2010-0895.html ↗
- http://secunia.com/advisories/42306 ↗
- http://www.securityfocus.com/bid/44914 ↗
- http://www.debian.org/security/2011/dsa-2348 ↗
- http://www.securitytracker.com/id?1024754 ↗
- http://secunia.com/advisories/46920 ↗
- http://secunia.com/advisories/42256 ↗
- http://secunia.com/advisories/42318 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051122.html ↗
- http://packetstormsecurity.com/files/152569/SystemTap-1.3-MODPROBE_OPTIONS-Privilege-Escalation.html ↗
- https://www.exploit-db.com/exploits/46730/ ↗