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Category:   Application (Generic)  >   Enterasys NetSight Vendors:   Enterasys Networks, Inc.
Enterasys NetSight TFTPD and BOOTPD Servers Permit Remote Code Execution and Denial of Service Attacks
SecurityTracker Alert ID:  1017876
SecurityTracker URL:  http://securitytracker.com/id/1017876
CVE Reference:   CVE-2007-2343, CVE-2007-2344   (Links to External Site)
Updated:  May 16 2008
Original Entry Date:  Apr 5 2007
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Console version 2.1, Inventory Manager version 2.1; possibly other versions
Description:   A vulnerability was reported in Enterasys NetSight. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions.

A remote user can send a specially crafted filename to trigger a stack overflow in the TFTPD server and execute arbitrary code on the target system. The code will run with the privileges of the target service (typically administrative privileges).

A remote user can send a specially crafted 'packet type' value to the BOOTPD server to cause the target service to exit.

The vendor was notified on August 15, 2006.

CIRT.DK discovered this vulnerability. iDefense reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.

A remote user can cause denial of service conditions.

Solution:   The following fixed versions are available:

NetSight Console 2.3.1 build 6
NetSight Inventory Manager 2.2.2 build 4

[Editor's note: It is unclear which version number is the first version to include the fix.]

Vendor URL:  www.enterasys.com/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (2000), Windows (XP)

Message History:   None.


 Source Message Contents

Subject:  iDefense Security Advisory 04.04.07: Enterasys Networks Multiple

Enterasys Networks Multiple NetSight Products Multiple Vulnerabilities

iDefense Security Advisory 04.04.07
http://labs.idefense.com/intelligence/vulnerabilities/
Apr 04, 2007

I. BACKGROUND

NetSight is a graphical network management platform combining multiple
products into one console. More information can be found at the
following URL.

http://www.enterasys.com/products/management/

II. DESCRIPTION

Multiple vulnerabilities exists within the TFTPD and BOOTPD server
components of various Enterasys Networks NetSight products.

The TFTPD server component of various Enterasys Networks NetSight
products contains a buffer overflow in the file name portion of a
request packet. By sending a request packet with a long file name, it
is possible to cause an exploitable stack based buffer overflow.

The BOOTPD server component of various Enterasys Networks NetSight
products fails to validate the "packet type" field of packets it
receives. By sending a UDP packet with a an invalid "packet type" it is
possible to cause an the server to exit.

III. ANALYSIS

Exploitation of these vulnerabilities allows attackers to cause a denial
of service condition or execute arbitrary code on the target system.

These services typically run as an administrative user. As the services
use the UDP protocol, the source address of packets could be spoofed.
This may allow bypassing of some host based firewall rules designed to
limit connections to trusted clients.

IV. DETECTION

iDefense has confirmed the TFTPD and BOOTPD component of the following
NetSight packages on the Windows XP and Windows 2000 platform are
vulnerable.

  NetSight Console 2.1
  NetSight Inventory Manager 2.1

Previous versions of the products, and versions for other platforms, may
also contain vulnerable code, however this has not been confirmed.

V. WORKAROUND

These services can be stopped and started from an icon in the system
tray. It is recommended that they not be activated unless required.
Restricting access to the services to trusted clients may not be a
viable option, as the services use the UDP protocol, which an attacker
can easily spoof.

VI. VENDOR RESPONSE

iDefense has confirmed that the following releases of Enterasys'
NetSight products are no longer vulnerable.

  NetSight Console 2.3.1 build 6
  NetSight Inventory Manager 2.2.2 build 4

VII. CVE INFORMATION

A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.

VIII. DISCLOSURE TIMELINE

08/16/2006  Initial vendor notification
08/16/2006  Initial vendor response
04/04/2007  Coordinated public disclosure

IX. CREDIT

This vulnerability was reported to iDefense by CIRT.DK.

Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php

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http://labs.idefense.com/

X. LEGAL NOTICES


Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically,
please e-mail customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
 There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct,
indirect, or consequential loss or damage arising from use of, or
reliance on, this information.
_______________________________________________
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http://www.idefense.com/mailman/listinfo/idlabs-advisories


 
 


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