CantCommunicateWithServerError: Couldn't get a valid response from the server when requesting to URL

[suanve]

An error occurred on click here

hi,I wonder why.

server：192.168.4.180

client：nat 192.168.248.247，The host machine:192.168.4.164

[suanve]

this is a server error message。

how to solve?

[Marce314]

Hi @SuanWell , Can you send us the output of pip freeze, if possible use pip freeze > installed_libs.txt. Also, can you send us the output of python2 manage.py status-check

Thanks, Marcelo

[suanve]

Hi @SuanWell , Can you send us the output of pip freeze, if possible use pip freeze > installed_libs.txt. Also, can you send us the output of python2 manage.py status-check

Thanks, Marcelo

fine,I'm glad you could help me.thanks This is the output of the freeze： python-editor==1.0.4 python-mimeparse==1.6.0 python-nmap==0.6.1 python-slugify==3.0.2 pytz==2018.9 requests==2.21.0 requests-oauthlib==1.2.0 requests-toolbelt==0.9.1 ruamel.ordereddict==0.4.13 ruamel.yaml==0.15.89 scapy==2.2.0 selenium==3.141.0 service-identity==18.1.0 setproctitle==1.1.10 simplegeneric==0.8.1 simplejson==3.16.0 singledispatch==3.4.0.3 six==1.12.0 SOAPpy==0.12.22 soupsieve==1.8 speaklater==1.3 SQLAlchemy==1.3.3 sqlalchemy-schemadisplay==1.3 sqlparse==0.2.4 supervisor==4.0.2 tabulate==0.8.3 terminaltables==3.1.0 text-unidecode==1.2 tornado==4.2.1 tqdm==4.31.1 Twisted==18.9.0 txaio==18.8.1 Unidecode==1.0.23 uritemplate==3.0.0 urllib3==1.24.1 uWSGI==2.0.18 vext==0.7.3 vine==1.3.0 vobject==0.9.6.1 w3af-api-client==1.1.7 wapiti==2.3.0 wcwidth==0.1.7 webargs==5.3.0 webencodings==0.5.1 websocket-client==0.56.0 Werkzeug==0.15.1 whitenoise==4.0 Whoosh==2.7.4 win-inet-pton==1.1.0 wstools==0.4.3 WTForms==2.2.1 zope.interface==4.6.0

### This is the output of python2 manage.py check-check : root@controller:/data/faraday# python2 manage.py status-check /usr/local/lib/python2.7/dist-packages/psycopg2/init.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: http://initd.org/psycopg/docs/install.html#binary-install-from-pypi. """)

Checking if postgreSQL is running... (u'PostgreSQL 9.5.16 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609, 64-bit',) [+] PostgreSQL is running and up to date [+] PostgreSQL lock not detected. [+] PostgreSQL encoding: UTF8

Checking if Faraday is running... [+] Faraday Server is running. PID:5963
[-] Faraday GTK is not running

Checking Faraday dependencies... [+] Server dependencies met [-] Some client dependencies are old: [tornado]. Update them with "pip install -r requirements.txt -U"

Checking Faraday config... [+] Credentials matched [+] /.faraday/storage -> Permission accepted [+] Port 80 in 0.0.0.0 is open

[Marce314]

It seems some of the dependencies are outdated. Run pip install -r requirements.txt -U in your faraday folder (we recomend using a python virtual enviroment). Let us know if this solves the issue.

[suanve]

It seems some of the dependencies are outdated. Run pip install -r requirements.txt -U in your faraday folder (we recomend using a python virtual enviroment). Let us know if this solves the issue.

yep,I'm already running it. But it still doesn't work.

[Marce314]

If i'm not mistaken, the error message changed, since the dependencies issue is solved. Could you send us the new error message? Marcelo

[suanve]

If i'm not mistaken, the error message changed, since the dependencies issue is solved. Could you send us the new error message? Marcelo

Exception: 
Traceback: Traceback (most recent call last):

File "/root/python-faraday/gui/gtk/dialogs.py", line 964, in on_main_tree_selection vuln_model = self.create_vuln_model(actual_object) File "/root/python-faraday/gui/gtk/dialogs.py", line 1017, in create_vuln_model vulns = obj.getVulns() File "/root/python-faraday/persistence/server/models.py", line 1006, in getVulns return get_all_vulns(self._workspace_name, service_id=self._server_id) File "/root/python-faraday/persistence/server/models.py", line 213, in get_all_vulns vulns_dictionaries = server.get_all_vulns(workspace_name, params) File "/root/python-faraday/persistence/server/server.py", line 428, in get_all_vulns 'vulnerabilities', params) File "/root/python-faraday/persistence/server/server.py", line 391, in _get_faraday_ready_dictionaries appropiate_dictionary = appropiate_function(workspace_name, params) File "/root/python-faraday/persistence/server/server.py", line 298, in _get_raw_vulns return _get(request_url, params) File "/root/python-faraday/persistence/server/server.py", line 245, in _get params=params)) File "/root/python-faraday/persistence/server/server.py", line 188, in wrapper response = func(*args, **kwargs) File "/root/python-faraday/persistence/server/server.py", line 222, in _unsafe_io_with_server raise CantCommunicateWithServerError(server_io_function, server_url, payload, answer) CantCommunicateWithServerError: Couldn't get a valid response from the server when requesting to URL http://10.211.55.200:80/_api/v2/ws/work2/vulns and function <function get at 0x7fdac13f5410>. Response was <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

Identifier: 983c48960c6d00e78b36bfdaddcd293336703bc313ae046f3299e7813ca149a3
Versions: OS: Kali kali-rolling kali-rolling,
          Faraday Version: 3.7.0
          Python Versions: Python 2.7.16 

Modules: [ ]

[llazzaro]

Hi,

You got a 500 error on server. Can you search for error on the .faraday/logs/faraday-server.log? , make sure you search the logs on 10.211.55.200.

Thanks!

[suanve]

Hi,

You got a 500 error on server. Can you search for error on the .faraday/logs/faraday-server.log? , make sure you search the logs on 10.211.55.200.

Thanks!

2019-05-09 19:22:47,913 - flask.app - ERROR {PoolThread-twisted.internet.reactor-8} [app.py:1761 - log_exception() ] Exception on /v2/ws/work2/vulns/ [GET] Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 2292, in wsgi_app response = self.full_dispatch_request() File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1815, in full_dispatch_request rv = self.handle_user_exception(e) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1718, in handle_user_exception reraise(exc_type, exc_value, tb) File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1813, in full_dispatch_request rv = self.dispatch_request() File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1799, in dispatch_request return self.view_functionsrule.endpoint File "/usr/local/lib/python2.7/dist-packages/flask_classful.py", line 268, in proxy response = view(*request.view_args) File "/usr/local/lib/python2.7/dist-packages/flask_classful.py", line 239, in inner return fn(args, kwargs) File "/data/faraday/server/api/base.py", line 426, in index query = self._filter_query(self._get_eagerloaded_query(kwargs)) File "/data/faraday/server/api/modules/vulns.py", line 520, in _filter_query query = super(VulnerabilityView, self)._filter_query(query) File "/data/faraday/server/api/base.py", line 555, in _filter_query return self.filterset_class(query).filter() File "/data/faraday/server/api/modules/vulns.py", line 405, in filter query = super(VulnerabilityFilterSet, self).filter() File "/usr/local/lib/python2.7/dist-packages/filteralchemy/filterset.py", line 161, in filter query = filter.filter(query, self.opts.model, label, value) File "/usr/local/lib/python2.7/dist-packages/filteralchemy/filters.py", line 21, in filter return operator(query, model, self.attr or attr, value) File "/data/faraday/server/api/modules/vulns.py", line 345, in call condition = column.ilike('%' + value + '%') TypeError: cannot concatenate 'str' and 'int' objects

[fedek]

The GTK interface has been deprecated please refer to faraday-cli, closing this issue during clean-up.

Thanks for the bug report.