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RICOH Aficio 450/455 PCL 5e Printer ICMP DOS vulnerability
From: Hongzhen Zhou <felix__zhou () hotmail com>
Date: 14 Dec 2004 17:34:39 -0000




   RICOH Aficio 450/455 PCL 5e Printer ICMP DOS vulnerability

AUTHOR:
(Fortinet, inc)
Hongzhen Zhou<felix__zhou _at_ hotmail _dot_ com>

DATE:
14/12/2004

PRODUCTS:
RICOH Aficio 450/455 PCL 5e Printer(SAVIN 9945 DPE/2045 DPE)
Other RICOH Aficio products (or Toshiba printer products?)may be vulnerable

DETAILS:
RICOH Aficio 450/455 PCL does not conduct some kinds of ICMP 
packet properly.
If it receives a icmp packet that:
1. icmp total length is bigger than 28(8 header + 20 data)
2. icmp[0] == 3 (or 4, 11 , 12. other value?)
3. icmp[17] == 17 or 6(other value?) -- (protocol field in ip header?)
then it reboots.



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