PHP :: Request #32988 :: ext/oci8: OCI doesn't support DB external authentication

ext/oci8: OCI doesn't support DB external authentication

Submitted:

2005-05-09 17:00 UTC

Modified:

2005-09-08 11:50 UTC

Votes:	1
Avg. Score:	4.0 ± 0.0
Reproduced:	1 of 1 (100.0%)
Same Version:	0 (0.0%)
Same OS:	0 (0.0%)

From:

stephane dot dekeyzer at kmi dot be

Assigned:

Status:

Closed

Package:

Feature/Change Request

PHP Version:

5.0.4

OS:

Any

Private report:

CVE-ID:

None

View Developer Edit

[2005-05-09 17:00 UTC] stephane dot dekeyzer at kmi dot be

Description:
------------
OCILogon, OCIPLogon, doesn't support external authentication to the database ...

I know this a ecurity hole if you use php with apache, but when you use it in scripting mode, it is very usefull, and itsn't a security breach.

I met Christopher Jones last week at the PHP conference in Amsterdam who agreed and asked me to post this bug so OCI developpers can discuss about it.

It would a be a good idea when php runs without apache, external authentication would be allowed.

I have a modification of the oci8.c wich support external authentication, just mail me if you want to have it !

Reproduce code:
---------------
$conn = OCILogon("", "", mydb); // should work
$conn = OCILogon("/", "", mydb); // should also work
$conn = OCILogon(null, null, mydb); // should also work

Expected result:
----------------
$conn = OCILogon(null, null, mydb); // should work and log me in as the os user curently running the script


Actual result:
--------------
$conn = OCILogon(null, null, mydb); // gives an error.

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports

[2005-05-10 17:51 UTC] wez@php.net

Please post your patch online somewhere as a unified diff against CVS HEAD, and paste the link to that diff into this bug report; thanks :)

[2005-05-11 11:07 UTC] stephane dot dekeyzer at kmi dot be

simplified version:

if(external authentication){
  do ext authentication
}
else{
  do login/password authentication
}

after line 2819, here a re my new lines:

  if(strcmp(username, "/") == 0 && strlen(password) == 0 ||
     strlen(username) == 0      && strlen(password) == 0){
  	/* doing external authentication (OCI_CRED_EXT) */
  	CALL_OCI_RETURN(OCI(error),
  		OCISessionBegin(
  			svchp, 
  			OCI(pError), 
  			session->pSession, 
  			(ub4) OCI_CRED_EXT, 
  			(ub4) OCI_DEFAULT
  		)
  	);
  }
  else {

  	/* set the username in user handle */
  	CALL_OCI_RETURN(OCI(error),
  		OCIAttrSet(
  			(dvoid *) session->pSession, 
  			(ub4) OCI_HTYPE_SESSION, 
  			(dvoid *) username, 
  			(ub4) strlen(username), 
  			(ub4) OCI_ATTR_USERNAME, 
  			OCI(pError)
  		)
  	);
  
  	if (OCI(error) != OCI_SUCCESS) {
  		oci_error(OCI(pError), "OCIAttrSet OCI_ATTR_USERNAME", OCI(error));
  		goto CLEANUP;
  	}
  
  	/* set the password in user handle */
  	CALL_OCI_RETURN(OCI(error),
  		OCIAttrSet(
  			(dvoid *) session->pSession, 
  			(ub4) OCI_HTYPE_SESSION, 
  			(dvoid *) password, 
  			(ub4) strlen(password), 
  			(ub4) OCI_ATTR_PASSWORD, 
  			OCI(pError)
  		)
  	);
  
  	if (OCI(error) != OCI_SUCCESS) {
  		oci_error(OCI(pError), "OCIAttrSet OCI_ATTR_PASSWORD", OCI(error));
  		goto CLEANUP;
  	}
  
  	
  	CALL_OCI_RETURN(OCI(error),
  		OCISessionBegin(
  			svchp, 
  			OCI(pError), 
  			session->pSession, 
  			(ub4) OCI_CRED_RDBMS, 
  			(ub4) OCI_DEFAULT
  		)
  	);
	}

[2005-09-08 11:50 UTC] tony2001@php.net

The bug has been fixed in OCI8 v.1.1, which is available in CVS HEAD and PECL (use `pear install oci8-beta` to install it).

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