Subject: DNS rebinding not mentioned in "HTTP/1.1, part 1"

From: Tyler Close <[email-masked]>
Date: Wed, 25 Nov 2009 07:18:58 -0800

The "Security Considerations" section of "HTTP/1.1, part 1" does not
mention DNS rebinding attacks. The normative language in the section
on "DNS spoofing" seems to require vulnerability to DNS rebinding
attacks:

"""
If HTTP clients cache the results of host name lookups in order to
achieve a performance improvement, they MUST observe the TTL
information reported by DNS
"""

--Tyler

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