Public Vulnerability Reports

Enterasys Networks Multiple NetSight Products Multiple Vulnerabilities

04.04.07

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/

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.

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.

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.

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.

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 

CVE INFORMATION

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

DISCLOSURE TIMELINE

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

CREDIT

This vulnerability was reported to iDefense by CIRT.DK.

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LEGAL NOTICES

Copyright © 2007 Verisign, Inc.

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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.