Wireshark-bugs: [Wireshark-bugs] [Bug 12042] New: wireshark doesn't decrypt 2-way SSL traffic
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Sun, 24 Jan 2016 04:41:59 +0000
Bug ID 12042
Summary wireshark doesn't decrypt 2-way SSL traffic
Product Wireshark
Version unspecified
Hardware x86
OS Mac OS X 10.11
Status CONFIRMED
Severity Normal
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter jeffrey.palmiero@raymondjames.com 

Created attachment 14270 [details]
2-way ssl conversation which you should be able to decrypt and the private key
to decrypt it

Build Information:
Wireshark 2.0.1 (v2.0.1-0-g59ea380 from master-2.0)

Copyright 1998-2015 Gerald Combs <gerald@wireshark.org> and contributors.
License GPLv2+: GNU GPL version 2 or later
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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 Qt 5.3.2, with libpcap, without POSIX capabilities, with
libz 1.2.5, with GLib 2.36.0, with SMI 0.4.8, without c-ares, without ADNS,
with
Lua 5.2, with GnuTLS 2.12.19, with Gcrypt 1.5.0, with MIT Kerberos, with GeoIP,
with QtMultimedia, without AirPcap.

Running on Mac OS X 10.11.1, build 15B42 (Darwin 15.0.0), with locale C, with
libpcap version 1.5.3 - Apple version 54, with libz 1.2.5, with GnuTLS 2.12.19,
with Gcrypt 1.5.0.
Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz (with SSE4.2)

Built using llvm-gcc 4.2.1 (Based on Apple Inc. build 5658) (LLVM build
2336.9.00).

--
setup apache for 2 way SSL and disabled diffie hellman.  when I apply the
server private key, wireshark is not decrypting the SSL traffic.  when I look
at the debug log I can see the message:

ssl_restore_master_key can't find pre-master secret by Encrypted pre-master
secret

Even though looking at the dissector, I can see the encrypted pre-master secret
in the bottom window.

When I turn off 2-way ssl, wireshark can decrypt the conversation without a
problem.

I am including a pcap which can't be decrypted and the private key that should
decrypt the conversation.

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