Executive Summary

Summary
Title systemtap security update
Informations
Name RHSA-2009:0373 First vendor Publication 2009-03-26
Vendor RedHat Last vendor Modification 2009-03-26
Severity (Vendor) Moderate Revision 01

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated systemtap packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

SystemTap is an instrumentation infrastructure for systems running version 2.6 of the Linux kernel. SystemTap scripts can collect system operations data, greatly simplifying information gathering. Collected data can then assist in performance measuring, functional testing, and performance and function problem diagnosis.

A race condition was discovered in SystemTap that could allow users in the stapusr group to elevate privileges to that of members of the stapdev group (and hence root), bypassing directory confinement restrictions and allowing them to insert arbitrary SystemTap kernel modules. (CVE-2009-0784)

Note: This issue was only exploitable if another SystemTap kernel module was placed in the "systemtap/" module directory for the currently running kernel.

Red Hat would like to thank Erik Sjölund for reporting this issue.

SystemTap users should upgrade to these updated packages, which contain a backported patch to correct this issue.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

489808 - CVE-2009-0784 systemtap: race condition leads to privilege escalation

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2009-0373.html

CWE : Common Weakness Enumeration

idName
CWE-362Race Condition

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:7772
 
Oval ID: oval:org.mitre.oval:def:7772
Title: DSA-1755 systemtap -- race condition
Description: Erik Sjoelund discovered that a race condition in the stap tool shipped by Systemtap, an instrumentation system for Linux 2.6, allows local privilege escalation for members of the stapusr group. The old stable distribution (etch) isn't affected.
Family: unix Class: patch
Reference(s): DSA-1755
CVE-2009-0784
Version: 3
Platform(s): Debian GNU/Linux 5.0
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13814
 
Oval ID: oval:org.mitre.oval:def:13814
Title: DSA-1755-1 systemtap -- race condition
Description: Erik Sjoelund discovered that a race condition in the stap tool shipped by Systemtap, an instrumentation system for Linux 2.6, allows local privilege escalation for members of the stapusr group. The old stable distribution isn’t affected. For the stable distribution, this problem has been fixed in version 0.0.20080705-1+lenny1. For the unstable distribution, this problem has been fixed in version 0.0.20090314-2. We recommend that you upgrade your systemtap package.
Family: unix Class: patch
Reference(s): DSA-1755-1
CVE-2009-0784
Version: 5
Platform(s): Debian GNU/Linux 5.0
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:11613
 
Oval ID: oval:org.mitre.oval:def:11613
Title: Race condition in the SystemTap stap tool 0.0.20080705 and 0.0.20090314 allows local users in the stapusr group to insert arbitrary SystemTap kernel modules and gain privileges via unknown vectors.
Description: Race condition in the SystemTap stap tool 0.0.20080705 and 0.0.20090314 allows local users in the stapusr group to insert arbitrary SystemTap kernel modules and gain privileges via unknown vectors.
Family: unix Class: vulnerability
Reference(s): CVE-2009-0784
Version: 5
Platform(s): Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22797
 
Oval ID: oval:org.mitre.oval:def:22797
Title: ELSA-2009:0373: systemtap security update (Moderate)
Description: Race condition in the SystemTap stap tool 0.0.20080705 and 0.0.20090314 allows local users in the stapusr group to insert arbitrary SystemTap kernel modules and gain privileges via unknown vectors.
Family: unix Class: patch
Reference(s): ELSA-2009:0373-01
CVE-2009-0784
Version: 6
Platform(s): Oracle Linux 5
Product(s): systemtap
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application1

OpenVAS Exploits

DateDescription
2011-08-09Name : CentOS Update for systemtap CESA-2009:0373 centos4 i386
File : nvt/gb_CESA-2009_0373_systemtap_centos4_i386.nasl
2011-08-09Name : CentOS Update for systemtap CESA-2009:0373 centos5 i386
File : nvt/gb_CESA-2009_0373_systemtap_centos5_i386.nasl
2009-06-05Name : Ubuntu USN-743-1 (gs-gpl)
File : nvt/ubuntu_743_1.nasl
2009-06-05Name : Ubuntu USN-744-1 (lcms)
File : nvt/ubuntu_744_1.nasl
2009-04-15Name : CentOS Security Advisory CESA-2009:0373 (systemtap)
File : nvt/ovcesa2009_0373.nasl
2009-03-31Name : RedHat Security Advisory RHSA-2009:0373
File : nvt/RHSA_2009_0373.nasl
2009-03-31Name : Debian Security Advisory DSA 1755-1 (systemtap)
File : nvt/deb_1755_1.nasl

Open Source Vulnerability Database (OSVDB)

idDescription
53111SystemTap stap Module Loading Race Condition Local Privilege Escalation

Nessus® Vulnerability Scanner

DateDescription
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-0373.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20090326_systemtap_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2010-01-06Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2009-0373.nasl - Type : ACT_GATHER_INFO
2009-03-30Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1755.nasl - Type : ACT_GATHER_INFO
2009-03-27Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-0373.nasl - Type : ACT_GATHER_INFO

Alert History

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0
DateInformations
2014-02-17 11:52:23
  • Multiple Updates