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Re: problem with ntlm_smb_lm_auth helper

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On 16/09/2015 9:05 p.m., Emmanuel Garette wrote:
> Le 07/09/2015 18:40, Amos Jeffries a écrit :
>> On 8/09/2015 1:17 a.m., Emmanuel Garette wrote:
>>>
>>> Seems to be ok for me. Thanks for your fast reply.
>>>
>>> Need I open a bug in bugzilla ?
>>>
>> No need. I think this may be one of the existing ones about this helper.
>> Thanks for the feedback it should be applied to the current versions
>> shortly.
> 
> Hi,
> 
> Today I found a new problem. All work fine with computer join into
> windows domain. Not for computer user CNTLM (not in the domain).
> 
> In debug mode I can see this error:
> 
>> ntlm_smb_lm_auth.cc(307): pid=4668 :NT response: insane data (pkt-sz:
> 108, fetch len: 0, offset: 108)
> 
> If I understand, there is no NT password.
> 
> In older code, there was this line:
> 
>> tmp = ntlm_fetch_string ((char *) auth, auth_length, &auth->ntresponse);
>> if (tmp.str != NULL && tmp.l != 0) {
> 
> The NT password was check only if len was different to 0.
> 
> In this part of your patch:
>> /* still fetch the NT response and check validity against empty
> password */
>>      {
>>          const strhdr * str = &auth->ntresponse;
>>          int16_t len = le16toh(str->len);
>>          int32_t offset = le32toh(str->offset);
>>          if (len != ENCODED_PASS_LEN || offset + len > auth_length ||
> offset == 0) {
> 
> if I replace last line with:
> 
>> if ((len != 0 && len != ENCODED_PASS_LEN) || offset + len >
> auth_length || offset == 0) {
> 
> Everything works well.

By that do you mean it rejects with "Empty NT password supplied for
user" ?  or that it accepts the login?

Amos

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