[jira] [Created] (HTTPCLIENT-1488) Built-in NTLM engine fails to authenticate against Squids ntlm_fake_auth, JCIFS doesn't

["Andreas Sewe (JIRA)" <ji...@apache.org>]

Andreas Sewe created HTTPCLIENT-1488:
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             Summary: Built-in NTLM engine fails to authenticate against Squids ntlm_fake_auth, JCIFS doesn't
                 Key: HTTPCLIENT-1488
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1488
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: HttpClient
    Affects Versions: 4.3.3
         Environment: Squid 4.3.3
JCIFS 1.3.17
            Reporter: Andreas Sewe


I used the provided ClientProxyAuthentication example <https://hc.apache.org/httpcomponents-client-4.2.x/httpclient/examples/org/apache/http/examples/client/ClientProxyAuthentication.java> to authenticate with NTML against a local Squid instance, using its ntlm_fake_auth helper (only does the handshake, all credentials are considered valid).

Unfortunately, this fails with the NTLM engine built into version 4.3.3 (also tested with 4.2.1: same result). Following the guidance of <http://hc.apache.org/httpcomponents-client-ga/ntlm.html>, I got it working with JCIFS. Is Squid not implementing NTLM as expected by HttpComponents?

I added two Wireshark captures to show the differences in handshake behaviour between the built-in and JCIFS engines. Hope that helps.



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