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 Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Systemtap | Systemtap | 1.3 (including) | 1.3 (including) |
| Red Hat Enterprise Linux 4 | RedHat | systemtap-0:0.6.2-2.el4_8.3 | * |
| Red Hat Enterprise Linux 5 | RedHat | systemtap-0:1.1-3.el5_5.3 | * |
| Red Hat Enterprise Linux 6 | RedHat | systemtap-0:1.2-11.el6_0 | * |
| Systemtap | Ubuntu | devel | * |
| Systemtap | Ubuntu | maverick | * |
References
- 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%3Ba=commit%3Bh=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/
- 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%3Ba=commit%3Bh=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/