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r2021: add password change fallback to SetUserInfo level 25,24,23

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metze
This commit is contained in:
Stefan Metzmacher 2004-08-24 16:28:08 +00:00 committed by Gerald (Jerry) Carter
parent 17268837d2
commit d31405ff2f
1 changed files with 130 additions and 0 deletions
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130
source/libnet/libnet_passwd.c
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@ -281,6 +281,9 @@ NTSTATUS libnet_ChangePassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
* 5. do a samr_LookupNames to get the users rid * 5. do a samr_LookupNames to get the users rid
* 6. do a samr_OpenUser to get a user handle * 6. do a samr_OpenUser to get a user handle
* 7. try samr_SetUserInfo level 26 to set the password * 7. try samr_SetUserInfo level 26 to set the password
* 8. try samr_SetUserInfo level 25 to set the password
* 8. try samr_SetUserInfo level 24 to set the password
*10. try samr_SetUserInfo level 23 to set the password
*/ */
static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r) static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
{ {
@ -447,6 +450,7 @@ static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *
} }
/* prepare samr_SetUserInfo level 26 */ /* prepare samr_SetUserInfo level 26 */
ZERO_STRUCT(u_info);
encode_pw_buffer(u_info.info26.password.data, r->samr.in.newpassword, STR_UNICODE); encode_pw_buffer(u_info.info26.password.data, r->samr.in.newpassword, STR_UNICODE);
u_info.info26.pw_len = strlen(r->samr.in.newpassword); u_info.info26.pw_len = strlen(r->samr.in.newpassword);
@ -489,7 +493,133 @@ static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *
goto UserInfo25; goto UserInfo25;
} }
goto disconnect;
UserInfo25: UserInfo25:
/* prepare samr_SetUserInfo level 25 */
ZERO_STRUCT(u_info);
u_info.info25.info.fields_present = SAMR_FIELD_PASSWORD;
encode_pw_buffer(u_info.info25.password.data, r->samr.in.newpassword, STR_UNICODE);
status = dcerpc_fetch_session_key(c.pdc.out.dcerpc_pipe, &session_key);
if (!NT_STATUS_IS_OK(status)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"dcerpc_fetch_session_key failed: %s\n",
nt_errstr(status));
goto disconnect;
}
generate_random_buffer((uint8_t *)confounder, 16);
MD5Init(&md5);
MD5Update(&md5, confounder, 16);
MD5Update(&md5, session_key.data, session_key.length);
MD5Final(confounded_session_key.data, &md5);
arcfour_crypt_blob(u_info.info25.password.data, 516, &confounded_session_key);
memcpy(&u_info.info25.password.data[516], confounder, 16);
sui.in.handle = &u_handle;
sui.in.info = &u_info;
sui.in.level = 25;
/* 8. try samr_SetUserInfo level 25 to set the password */
status = dcerpc_samr_SetUserInfo(c.pdc.out.dcerpc_pipe, mem_ctx, &sui);
if (!NT_STATUS_IS_OK(status)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"SetUserInfo level 25 for [%s] failed: %s\n",
r->samr.in.account_name, nt_errstr(status));
goto UserInfo24;
}
/* check result of samr_SetUserInfo level 25 */
if (!NT_STATUS_IS_OK(sui.out.result)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"SetUserInfo level 25 for [%s] failed: %s\n",
r->samr.in.account_name, nt_errstr(sui.out.result));
goto UserInfo24;
}
goto disconnect;
UserInfo24:
/* prepare samr_SetUserInfo level 24 */
ZERO_STRUCT(u_info);
encode_pw_buffer(u_info.info24.password.data, r->samr.in.newpassword, STR_UNICODE);
/* w2k3 ignores this length */
u_info.info24.pw_len = str_charnum(r->samr.in.newpassword)*2;
status = dcerpc_fetch_session_key(c.pdc.out.dcerpc_pipe, &session_key);
if (!NT_STATUS_IS_OK(status)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"dcerpc_fetch_session_key failed: %s\n",
nt_errstr(status));
goto disconnect;
}
arcfour_crypt_blob(u_info.info24.password.data, 516, &session_key);
sui.in.handle = &u_handle;
sui.in.info = &u_info;
sui.in.level = 24;
/* 9. try samr_SetUserInfo level 24 to set the password */
status = dcerpc_samr_SetUserInfo(c.pdc.out.dcerpc_pipe, mem_ctx, &sui);
if (!NT_STATUS_IS_OK(status)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"SetUserInfo level 24 for [%s] failed: %s\n",
r->samr.in.account_name, nt_errstr(status));
goto UserInfo23;
}
/* check result of samr_SetUserInfo level 24 */
if (!NT_STATUS_IS_OK(sui.out.result)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"SetUserInfo level 24 for [%s] failed: %s\n",
r->samr.in.account_name, nt_errstr(sui.out.result));
goto UserInfo23;
}
goto disconnect;
UserInfo23:
/* prepare samr_SetUserInfo level 23 */
ZERO_STRUCT(u_info);
u_info.info23.info.fields_present = SAMR_FIELD_PASSWORD;
encode_pw_buffer(u_info.info23.password.data, r->samr.in.newpassword, STR_UNICODE);
status = dcerpc_fetch_session_key(c.pdc.out.dcerpc_pipe, &session_key);
if (!NT_STATUS_IS_OK(status)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"dcerpc_fetch_session_key failed: %s\n",
nt_errstr(status));
goto disconnect;
}
arcfour_crypt_blob(u_info.info23.password.data, 516, &session_key);
sui.in.handle = &u_handle;
sui.in.info = &u_info;
sui.in.level = 23;
/* 10. try samr_SetUserInfo level 23 to set the password */
status = dcerpc_samr_SetUserInfo(c.pdc.out.dcerpc_pipe, mem_ctx, &sui);
if (!NT_STATUS_IS_OK(status)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"SetUserInfo level 23 for [%s] failed: %s\n",
r->samr.in.account_name, nt_errstr(status));
goto disconnect;
}
/* check result of samr_SetUserInfo level 23 */
if (!NT_STATUS_IS_OK(sui.out.result)) {
r->samr.out.error_string = talloc_asprintf(mem_ctx,
"SetUserInfo level 23 for [%s] failed: %s\n",
r->samr.in.account_name, nt_errstr(sui.out.result));
goto disconnect;
}
goto disconnect;
disconnect: disconnect:
/* close connection */ /* close connection */