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Local interface address detection broken on Fedora 21 #17

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danielkza opened this issue Nov 11, 2014 · 2 comments
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Local interface address detection broken on Fedora 21 #17

danielkza opened this issue Nov 11, 2014 · 2 comments

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@danielkza
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The local interface address detection in nogotofail/mitm/util/ip.py parses ifconfig output, assuming it conforms to the inet addr: <addr> format, but that isn't true on Fedora 21. Here is a piece of the output on my machine:

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 1019521  bytes 7437657641 (6.9 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1019521  bytes 7437657641 (6.9 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Notice the IP is not prefixed with addr:.
@danielkza
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That was quick, thanks!

@chadbrubaker chadbrubaker mentioned this issue Nov 11, 2014
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@chadbrubaker
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No problem. Let me me know if it is parsing correctly now. It parsed your example at least.

mkenne11 added a commit to mkenne11/nogotofail that referenced this issue Jan 2, 2016
@mkenne11
Merge pull request google#17 from mkenne11/check_forward_secrecy
e2082d9 
Added handler to detect ciphers that don't support forward secrecy
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@danielkza @chadbrubaker