Networks on yellow alert over ICMP flaw

Friday, 15 April 2005, 12:15 AM EST

ISPs and enterprises were this week advised to update their internet communications infrastructure following the discovery of a vulnerability affecting a raft of major suppliers including Cisco, Juniper, Microsoft and IBM to varying degrees.

Security researchers have discovered that multiple TCP/IP implementations fail to adequately validate Internet Control Message Protocol (ICMP) error messages. As a result, hackers could reset or slow an established connection using spoofed ICMP error messages.

By John Leyden at The Register.

[ Read more ]




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