Executive Summary

Summary
Title Deterministic Network Enhancer privilege escalation vulnerability
Informations
Name VU#858993 First vendor Publication 2008-06-18
Vendor VU-CERT Last vendor Modification 2008-06-27
Severity (Vendor) N/A Revision M

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
 
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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
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Detail

Vulnerability Note VU#858993

Deterministic Network Enhancer privilege escalation vulnerability

Overview

The Deterministic Network driver contains a privilege escalation vulnerability, which can allow a local attacker to execute code with kernel privileges.

I. Description

Deterministic Networks provides a product called Deterministic Network Enhancer (DNE), which extends the Microsoft Windows networking stack. DNE is packaged with multiple applications, including the Cisco VPN Client. The DNE driver, which is provided by dne2000.sys, is vulnerable to privilege escalation. By making a certain ioctl to the DNE device driver, it is possible to execute code with windows kernel privileges.

II. Impact

A local attacker may be able to execute code with windows kernel privileges.

III. Solution

Apply an update

This issue is addressed in dne2000.sys version 3.21.12.17902. This driver is available from the DNE support page.

Cisco Windows VPN Client users should install version 5.0.03.0530, as specified in Cisco Support document CSCsm25860.

SafeNet SoftRemote users should install SoftRemote version 10.8.4, and SafeNet HighAssuranceRemote users should install HighAssuranceRemote 1.8.4. These versions include the updated DNE driver. Please see the SafeNet Customer Support page for more details.

For other products that provide the DNE driver, please check with the vendor for updates.

Systems Affected

VendorStatusDate Updated
Blue Coat SystemsVulnerable19-Jun-2008
Cisco Systems, Inc.Vulnerable18-Jun-2008
Deterministic Networks, IncVulnerable18-Jun-2008
SafeNetVulnerable27-Jun-2008

References


http://www.digit-labs.org/files/exploits/dne2000-call.c
http://www.deterministicnetworks.com/support/dnesupport.asp
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsm25860
http://secunia.com/advisories/30728/
http://secunia.com/advisories/30753/
http://secunia.com/advisories/30744/
http://secunia.com/advisories/30747/

Credit

This vulnerability was reported by mu-b at Digit-Labs.

This document was written by Will Dormann.

Other Information

Date Public06/17/2008
Date First Published06/18/2008 11:16:29 AM
Date Last Updated06/27/2008
CERT Advisory 
CVE Name 
US-CERT Technical Alerts 
Metric22.50
Document Revision9

Original Source

Url : http://www.kb.cert.org/vuls/id/858993

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Open Source Vulnerability Database (OSVDB)

Id Description
46272 Deterministic Network Enhancer (DNE) dne2000.sys Local Privilege Escalation

Nessus® Vulnerability Scanner

Date Description
2008-07-11 Name : The remote host contains a kernel driver that is affected by a local privileg...
File : dne_priv_escalation.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:08:14
  • Multiple Updates