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Deterministic Network Enhancer privilege escalation vulnerability

Vulnerability Note VU#858993

Original Release Date: 2008-06-18 | Last Revised: 2008-06-27

Overview

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

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.

Impact

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

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.

Vendor Information

858993
Expand all

Blue Coat Systems

Updated:  June 19, 2008

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

There are no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Cisco Systems, Inc.

Notified:  June 17, 2008 Updated:  June 18, 2008

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Deterministic Networks, Inc

Updated:  June 18, 2008

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

SafeNet

Updated:  June 27, 2008

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

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.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Credit

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

This document was written by Will Dormann.

Other Information

CVE IDs: None
Severity Metric: 22.50
Date Public: 2008-06-17
Date First Published: 2008-06-18
Date Last Updated: 2008-06-27 16:47 UTC
Document Revision: 9

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