Bug in cli_samr_get_dom_pwinfo with Win2k server?
Paul Douglas
paul_douglas at netilla.com
Tue Sep 10 14:21:01 GMT 2002
Hi,
I would like to change a user's password using SamrChangePasswordUser.
It looks as
if I will have to implement this function, but the prequiste call
SamGetDomainPasswordInformation is already implemented
in cli_samr_get_dom_pwinfo.
I added the call to cli_samr_get_dom_pwinfo in my code:
/result = cli_samr_get_dom_pwinfo(cli, mem_ctx, 0,0,0);
/
and I get the following error:
*prs_mem_get: reading data of size 4 would overrun buffer.*
From the ethereal trace it looks as if the payload of the DCE portion
of the packet
is:
00 00 00 00 00 00 00 00 00 00 00 00
while the code
//* SAMR_R_GET_DOM_PWINFO */
typedef struct r_samr_get_dom_pwinfo
{
/*
* Previously this was 3 uint16's. However, after some tests
* it appears that the data len for the signing needs to be 16.
* Not sure how 3 unit16's ever worked since the length always
* turned out to 12. 3 uint32's + NT_STATUS == 16 bytes. Tested
* using NT and 2k. --jerry
*/
* uint32 unk_0;
uint32 unk_1;
uint32 unk_2;
NTSTATUS status;*
} SAMR_R_GET_DOM_PWINFO;/
is expecting 4 bytes more.
It looks like this is a bug..
I can send the ethereal traces if you like.
One easy solution would be to comment out one of the fields, but I don't
want to break
anything else. Could you please review and suggest a soultion?
Also is there any plan to add the SamrChangePasswordUser before I go
ahead and do
it?...
Thanks,
Paul
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