Wireshark-bugs: [Wireshark-bugs] [Bug 7944] New: Protocol identified incorrectly
Date: Wed, 31 Oct 2012 21:55:22 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7944

           Summary: Protocol identified incorrectly
           Product: Wireshark
           Version: 1.8.3
          Platform: x86
        OS/Version: Windows Server 2008 R2
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: dreamscn@xxxxxxxxx


Build Information:
Version 1.8.3 (SVN Rev 45256 from /trunk-1.8)

Copyright 1998-2012 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled (64-bit) with GTK+ 2.24.10, with Cairo 1.10.2, with Pango 1.30.0, with
GLib 2.32.2, with WinPcap (4_1_2), with libz 1.2.5, without POSIX capabilities,
with SMI 0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS
2.12.18, with Gcrypt 1.4.6, without Kerberos, with GeoIP, with PortAudio
V19-devel (built Oct  2 2012), with AirPcap.

Running on 64-bit Windows Server 2008 R2 Service Pack 1, build 7601, with
WinPcap version 4.1.2 (packet.dll version 4.1.0.2001), based on libpcap version
1.0 branch 1_0_rel0b (20091008), GnuTLS 2.12.18, Gcrypt 1.4.6, without AirPcap.

Built using Microsoft Visual C++ 10.0 build 40219

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.
--
To recreate this problem
1. Start packet capture 
2. Use browser(IE9, Chromium 24) to connect to a ssh service port
2. HTTP GET request was interpreted as SSH

Does Wireshark sometimes use port number only to identify application layer
protocols?

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