Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title New drbd8 packages fix privilege escalation
Informations
Name DSA-2015 First vendor Publication 2010-03-15
Vendor Debian Last vendor Modification 2010-03-15
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A local vulnerability has been discovered in drbd8.

Philipp Reisner fixed an issue in the drbd kernel module that allows local users to send netlink packets to perform actions that should be restricted to users with CAP_SYS_ADMIN privileges. This is a similar issue to those described by CVE-2009-3725.

This update also fixes an ABI compatibility issue which was introduced by linux-2.6 (2.6.26-21lenny3). The prebuilt drbd module packages listed in this advisory require a linux-image package version 2.6.26-21lenny3 or greater.

For the stable distribution (lenny), this problem has been fixed in drbd8 (2:8.0.14-2+lenny1).

We recommend that you upgrade your drbd8 packages.

The linux-modules-extra-2.6 package has been rebuilt against the updated drbd8 package to provide fixed prebuilt drbd8-modules packages. If, instead of using the prebuilt drbd8-modules packages, you have built and installed a local copy of the drbd module from the drbd8-source package (e.g., using module-assistant), you will need to follow the same steps you originally used to rebuild your module after upgrading the drbd8-source package.

Note: After upgrading a kernel module you must reload the module for the changes to take effect: 1) Shutdown all services that make use of the drbd module 2) Unload the previous drbd module (modprobe -r drbd) 3) Load the updated drbd module (modprobe drbd) 4) Restart any services that make use of the drbd module

A system reboot will also cause the updated module to be used.

Original Source

Url : http://www.debian.org/security/2010/dsa-2015

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-732 Incorrect Permission Assignment for Critical Resource (CWE/SANS Top 25)
50 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18387
 
Oval ID: oval:org.mitre.oval:def:18387
Title: DSA-2015-1 drbd8 linux-modules-extra-2.6 - privilege escalation
Description: A local vulnerability has been discovered in drbd8.
Family: unix Class: patch
Reference(s): DSA-2015-1
CVE-2009-3725
Version: 7
Platform(s): Debian GNU/Linux 5.0
Product(s): drbd8
linux-modules-extra-2.6
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:7293
 
Oval ID: oval:org.mitre.oval:def:7293
Title: DSA-2015 drbd8 -- privilege escalation
Description: A local vulnerability has been discovered in drbd8. Philipp Reisner fixed an issue in the drbd kernel module that allows local users to send netlink packets to perform actions that should be restricted to users with CAP_SYS_ADMIN privileges. This is a similar issue to those described by CVE-2009-3725. This update also fixes an ABI compatibility issue which was introduced by linux-2.6. The prebuilt drbd module packages listed in this advisory require a linux-image package version 2.6.26-21lenny3 or greater.
Family: unix Class: patch
Reference(s): DSA-2015
CVE-2009-3725
Version: 5
Platform(s): Debian GNU/Linux 5.0
Product(s): drbd8
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Os 5
Os 1182

OpenVAS Exploits

Date Description
2010-05-07 Name : Mandriva Update for samba MDVSA-2010:090 (samba)
File : nvt/gb_mandriva_MDVSA_2010_090.nasl
2010-05-04 Name : Samba 'mount.cifs' Utility Symlink Attack Local Privilege Escalation Vulnerab...
File : nvt/gb_samba_39898.nasl
2010-03-16 Name : Debian Security Advisory DSA 2012-1 (linux-2.6)
File : nvt/deb_2012_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
59449 Linux Kernel Connector Netlink Packet Local Privilege Escalation

Linux Kernel contains a flaw that may allow an attacker to gain access to unauthorized privileges. The issue is triggered when unprivileged users being able to send netlink packets to certain subsystems using connector, which can be exploited to change certain configurations and perform other operations that should not be available to unprivileged users.

Nessus® Vulnerability Scanner

Date Description
2010-03-17 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2015.nasl - Type : ACT_GATHER_INFO
2010-03-15 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2012.nasl - Type : ACT_GATHER_INFO
2009-12-07 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-864-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-02-17 11:29:18
  • Multiple Updates