Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 3962] New: PPPoE PADI Empty Service-Name Bug

[bugzilla-daemon@xxxxxxxxxxxxx]

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3962

           Summary: PPPoE PADI Empty Service-Name Bug
           Product: Wireshark
           Version: 1.2.1
          Platform: x86
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: richterr@xxxxxxxxxxxxxxxxxxxxx


Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--
Hello,
i've just tested a new PPPoE attack of my tool (Hyenae) and discovered the
following bug:

When Wireshark captures a PPPoE packet with set PADI code, ID=0 and an Empty
Service-Name tag it completely hides the Service-Name tag within the packet
comparison. If the Service-Name tag is not empty, it is diplayed properly in
the comparison.

According to the RFC for PPPoE, an empty Service-Name tag on PADI packets is
valid and can be used to accept any service offer.


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