Wireshark-bugs: [Wireshark-bugs] [Bug 9708] New: HTTP Negotiate SPNEGO GSS-API and ASN.1 length
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 30 Jan 2014 00:23:52 +0000
Bug ID 9708
Summary HTTP Negotiate SPNEGO GSS-API and ASN.1 length encoding
Classification Unclassified
Product Wireshark
Version 1.10.5
Hardware x86-64
OS Windows 7
Status UNCONFIRMED
Severity Major
Priority Low
Component Wireshark
Assignee bugzilla-admin@wireshark.org
Reporter tsthrone@gmail.com 

Created attachment 12520 [details]
decoded negotiate in binary

Build Information:
Version 1.10.5 (SVNRev 54262 from /trunk-1.10)
--
Wireshark does not seem to decode the SPNEGO GSS-API tokens correctly when they
don't contain the 0x81 or 0x82 length designator in the ASN.1 DER lengths. If
the lengths don't have the upper bit set - which means it's just a byte of
length than it isn't decoded.

Here's the Negotiate header;

NEGOTIATE
YEoGBisGAQUFAqBAMD6gDjAMBgorBgEEAYI3AgIKoiwEKk5UTE1TU1AAAQAAAAGSCEAKAAoAGAAAAAAAAAAiAAAAVklSVFVBTEFEMj==

The binary decoded file is attached.

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