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VIGILANTE-2000007

VIGILANTE-2000007
Posted Aug 28, 2000
Authored by Vigilante | Site vigilante.com

Vigilante Advisory #7 - A malicious user can crash an Intel Express 550F or a host behind it by sending a packet with a malformed header. To restart the box you need remove it from it's power source as the reset button loses functionality as well. Affected systems: Intel Express Switch 550F - Firmware version 2.63 - Firmware version 2.64.

tags | exploit
SHA-256 | e5543dcadd99ee203a752f663a687366bd68f30736388f7036df6793e11c9e4c

VIGILANTE-2000007

Change Mirror Download
Intel Express Switch 500 series DoS

Advisory Code: VIGILANTE-2000007

Release Date:
August 28, 2000

Systems Affected:
Intel Express Switch 550F
- Firmware version 2.63
- Firmware version 2.64
Based on the response from Intel (quoted below), it is very likely that
other switches from the same series are also affected.

THE PROBLEM
By sending an IP packet, either to the Intel Express 550F or a host behind
it, with a malformed IP-header, the box crashes. To restart it, you need
to pull the plug (the reset button also looses functionality).

Vendor Status:
Intel was contacted on the 18th of July, and on the 21st of July a beta fix
was produced. Regression testing on the fix is not yet complete.

Fix (quote from the vendor):
"We're still working on a solution for you. Until then, I would advise that
any reporting, from you/your company, of this issue with the 500 series
switches MUST include a statement which indicates contacting Intel® Customer
Support for a fix. Following this, Intel® Customer Support will send the
patch to the customer(s).

For a list of phone numbers to get in touh with us, please refer to the
following URL: http://www.intel.com/support/9089.htm"


Vendor URL: http://www.intel.com
Product URL: http://www.intel.com/network/products/exp550t_f.htm
Copyright VIGILANTe 2000-07-14

Disclaimer:
The information within this document may change without notice. Use of
this information constitutes acceptance for use in an AS IS
condition. There are NO warranties with regard to this information.
In no event shall the author be liable for any consequences whatsoever
arising out of or in connection with the use or spread of this
information. Any use of this information lays within the user's
responsibility.

Feedback:
Please send suggestions, updates, and comments to:

VIGILANTe
mailto: swat@vigilante.com
http://www.vigilante.com

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