[tor-bugs] #10854 [Firefox Patch Issues]: Limit IPv4 addresses to dotted-decimal form (as per RFC3986)

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Feb 9 17:50:34 UTC 2014


#10854: Limit IPv4 addresses to dotted-decimal form (as per RFC3986)
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 Reporter:  oc                    |          Owner:  mikeperry
     Type:  defect                |         Status:  new
 Priority:  normal                |      Milestone:
Component:  Firefox Patch Issues  |        Version:
 Keywords:                        |  Actual Points:
Parent ID:                        |         Points:
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 [http://tools.ietf.org/html/rfc3986#section-3.2.2 RFC3986] specifies that
 host IPv4 addresses must be in dotted-decimal format (xxx.xxx.xxx.xxx) in
 a URI.

 However, on certain platforms (Unices) Firefox also allows alternative
 formats: octal, base 256, single long int… There is a longstanding
 [https://bugzilla.mozilla.org/show_bug.cgi?id=67730 ticket] to change this
 behavior, as alternate IP representations nowadays only serve for
 malicious address obfuscation or filters bypassing.

 The Tor browser should stick to the RFC in order to prevent such abuses
 and present a uniform behavior across platforms.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10854>
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