pyrit analyze has an error

[zzjjbb]

I used a self-compiled, clone with git version of pyrit according to the install tutorial. When I run "pyrit benchmark" or "pyrit list_cores", it works well and give me correct results. However, when I run "pyrit -r xxx.cap analyze", it says

Pyrit 0.5.1 (C) 2008-2011 Lukas Lueg - 2015 John Mora
https://github.com/JPaulMora/Pyrit
This code is distributed under the GNU General Public License v3+

Parsing file 'xxx.cap' (1/1)...
Traceback (most recent call last):
  File "/usr/local/bin/pyrit", line 6, in <module>
    pyrit_cli.Pyrit_CLI().initFromArgv()
  File "/usr/local/lib/python2.7/dist-packages/pyrit_cli.py", line 117, in initFromArgv
    func(self, **options)
  File "/usr/local/lib/python2.7/dist-packages/pyrit_cli.py", line 166, in new_f
    f(*args, **kwds)
  File "/usr/local/lib/python2.7/dist-packages/pyrit_cli.py", line 466, in analyze
    parser = self._getParser(capturefile)
  File "/usr/local/lib/python2.7/dist-packages/pyrit_cli.py", line 182, in _getParser
    parser.parse_pcapdevice(dev)
  File "/usr/local/lib/python2.7/dist-packages/cpyrit/pckttools.py", line 714, in parse_pcapdevice
    self.parse_packet(pckt)
  File "/usr/local/lib/python2.7/dist-packages/cpyrit/pckttools.py", line 732, in parse_packet
    self._add_ap(dot11_pckt.addr2, dot11_pckt)
  File "/usr/local/lib/python2.7/dist-packages/cpyrit/pckttools.py", line 660, in _add_ap
    essid = self._find_ssid(pckt)
  File "/usr/local/lib/python2.7/dist-packages/cpyrit/pckttools.py", line 652, in _find_ssid
    if elt_pckt.isFlagSet('ID', 'SSID') \
  File "/usr/local/lib/python2.7/dist-packages/cpyrit/pckttools.py", line 87, in isFlagSet
    return (1 << field.names.index([value])) & self.__getattr__(name) != 0
AttributeError: 'ByteField' object has no attribute 'names'"

When I use the binary version in kali and do the same thing, it works fine. By the way, I'm working on Ubuntu 16.04 when the problem occured.

[justinvzyl]

Have the same issue, Ubuntu 18.04

[pavonis9]

Duplicate of #565

The problem comes from scapy's update. And it's solved by downgrading Scapy:

wget -O /tmp/scapy2.3.2.tar.gz https://pypi.python.org/packages/6d/72/c055abd32bcd4ee6b36ef8e9ceccc2e242dea9b6c58fdcf2e8fd005f7650/scapy-2.3.2.tar.gz; sudo pip2 install /tmp/scapy2.3.2.tar.gz

Originally posted by @ShellBear in https://github.com/JPaulMora/Pyrit/issues/565#issuecomment-381366574