Vulnerability CVE-2010-4170


Published: 2010-12-07   Modified: 2012-02-13

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
systemtap 1.3 Local Root Privilege Escalation Vulnerability
Tavis Ormandy
09.12.2010

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Systemtap -> Systemtap 

 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://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/

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