Unix Technical Forum

SEO

vBulletin Search Engine Optimization


Go Back   Unix Technical Forum > Database Server Software > Oracle Database

Register FAQ Members List Calendar Search Today's Posts Mark Forums Read
  #1 (permalink)  
Old 02-24-2008, 01:48 PM
DA Morgan
 
Posts: n/a
Default CONNECT Role Privileges

The following is quoted from the 10gR2 Beta document.
================================================== =====================
The connect role privilege reduction feature reduces the number of
privileges granted to the connect role to one, the CREATE SESSION
privilege. The privileges have been removed from the connect role:

- CREATE CLUSTER
- CREATE DATABASE LINK
- CREATE SEQUENCE
- ALTER SESSION
- CREATE SYNONYM
- CREATE TABLE
- CREATE VIEW

This feature assists customers in deploying secure configurations by
helping enforce the least privilege principle.
================================================== =====================

This change may or may not be related to the comments here, and
elsewhere, with respect to the dangers related to creating users and
giving them the CONNECT role. But it makes me very happy and I have
received permission to post it here at c.d.o.server.

So be warned ... if you have been using CONNECT as the lazyman's way
of creating users with permission to connect to the database ... it
will not work the same way in the future unless you intentionally
modify the role. Hopefully no one will but rather will create their
own custom roles that reflect job titles and responsibilities.
--
Daniel A. Morgan
http://www.psoug.org
damorgan@x.washington.edu
(replace x with u to respond)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #2 (permalink)  
Old 02-24-2008, 01:48 PM
Holger Baer
 
Posts: n/a
Default Re: CONNECT Role Privileges

DA Morgan wrote:
> The following is quoted from the 10gR2 Beta document.
> ================================================== =====================
> The connect role privilege reduction feature reduces the number of
> privileges granted to the connect role to one, the CREATE SESSION
> privilege. The privileges have been removed from the connect role:
>
> - CREATE CLUSTER
> - CREATE DATABASE LINK
> - CREATE SEQUENCE
> - ALTER SESSION
> - CREATE SYNONYM
> - CREATE TABLE
> - CREATE VIEW
>
> This feature assists customers in deploying secure configurations by
> helping enforce the least privilege principle.
> ================================================== =====================
>
> This change may or may not be related to the comments here, and
> elsewhere, with respect to the dangers related to creating users and
> giving them the CONNECT role. But it makes me very happy and I have
> received permission to post it here at c.d.o.server.
>
> So be warned ... if you have been using CONNECT as the lazyman's way
> of creating users with permission to connect to the database ... it
> will not work the same way in the future unless you intentionally
> modify the role. Hopefully no one will but rather will create their
> own custom roles that reflect job titles and responsibilities.


Well finally. Developers will have to learn what roles are about. Are there
any changes to resource as well or are the removed priveleges silently added
to the resource role?

You know, people insist in grant connect, resource to myuser, and the
Oracle Documentation sets some really bad examples (why the hell should
the RMAN catalog owner get resource and connect on top of recovery_catalog_owner, as the
10g RMAN Reference suggests?).

But still good to know.

Holger
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #3 (permalink)  
Old 02-24-2008, 01:48 PM
Frank van Bortel
 
Posts: n/a
Default Re: CONNECT Role Privileges

Holger Baer wrote:
> DA Morgan wrote:
>
>> The following is quoted from the 10gR2 Beta document.
>> ================================================== =====================
>> The connect role privilege reduction feature reduces the number of
>> privileges granted to the connect role to one, the CREATE SESSION
>> privilege. The privileges have been removed from the connect role:
>>
>> - CREATE CLUSTER
>> - CREATE DATABASE LINK
>> - CREATE SEQUENCE
>> - ALTER SESSION
>> - CREATE SYNONYM
>> - CREATE TABLE
>> - CREATE VIEW
>>
>> This feature assists customers in deploying secure configurations by
>> helping enforce the least privilege principle.
>> ================================================== =====================
>>
>> This change may or may not be related to the comments here, and
>> elsewhere, with respect to the dangers related to creating users and
>> giving them the CONNECT role. But it makes me very happy and I have
>> received permission to post it here at c.d.o.server.
>>
>> So be warned ... if you have been using CONNECT as the lazyman's way
>> of creating users with permission to connect to the database ... it
>> will not work the same way in the future unless you intentionally
>> modify the role. Hopefully no one will but rather will create their
>> own custom roles that reflect job titles and responsibilities.

>
>
> Well finally. Developers will have to learn what roles are about. Are there
> any changes to resource as well or are the removed priveleges silently
> added
> to the resource role?
>
> You know, people insist in grant connect, resource to myuser, and the
> Oracle Documentation sets some really bad examples (why the hell should
> the RMAN catalog owner get resource and connect on top of
> recovery_catalog_owner, as the
> 10g RMAN Reference suggests?).
>
> But still good to know.
>
> Holger


I always granted them dba - sometimes I had to add
select any table, though.
Usually does gets the job done.

BWUHAHAHAHAH (smell the sulfur yet?)
--
Regards,
Frank van Bortel
The comments in this message should only be used by experienced users.
I can take no responsibility for accidents or damage caused by following
the above advice. I am not liable in any way.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #4 (permalink)  
Old 02-24-2008, 01:48 PM
DA Morgan
 
Posts: n/a
Default Re: CONNECT Role Privileges

Holger Baer wrote:

> Well finally.


My feeling exactly.

> Developers will have to learn what roles are about. Are there
> any changes to resource as well or are the removed priveleges silently
> added to the resource role?


To the best of my knoweldge no change was made to RESOURCE although I
made plea for that change in 10gR3 should there be one. And if not 10gR3
in 11. The security risk created by these three default roles exceeds
any possible value they might contain.

> You know, people insist in grant connect, resource to myuser, and the
> Oracle Documentation sets some really bad examples (why the hell should
> the RMAN catalog owner get resource and connect on top of
> recovery_catalog_owner, as the
> 10g RMAN Reference suggests?).
>
> But still good to know.
>
> Holger


I am hopeful that Sarbanes-Oxley, HIPAA, and the obvious threat of laws
and litigation related to data theft will lead Oracle to tighten up some
of the default install practices.

With 10g they finally got around to killing CHANGE_ON_INSTALL. I would
very much like to see these roles pounded into dust too. And then the
next item on my list will be a change so that when Oracle installs the
default will be resource_limit = TRUE and the default profile will
include the VERIFY_FUNCTION function as well as limitations on password
expiration, password reuse, etc.

Oracle is already more secure than its competition out of the box. That
does not mean best practices shouldn't be the default.
--
Daniel A. Morgan
http://www.psoug.org
damorgan@x.washington.edu
(replace x with u to respond)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #5 (permalink)  
Old 02-24-2008, 01:49 PM
Mark Bole
 
Posts: n/a
Default Re: CONNECT Role Privileges

DA Morgan wrote:

> Holger Baer wrote:
>

[...]
> To the best of my knoweldge no change was made to RESOURCE although I
> made plea for that change in 10gR3 should there be one. And if not 10gR3
> in 11. The security risk created by these three default roles exceeds
> any possible value they might contain.
>

[...]

Any idea when Oracle will fix the following problem?

A user granted the RESOURCE role automatically gets the UNLIMITED
TABLESPACE system privilege. Roles technically can't be grantees for
system privileges, but this behavior is hard-coded (an "anomaly" is what
Tom Kyte called it).

http://asktom.oracle.com/pls/ask/f?p...:1063989617206

As I recall this was at the heart of a long and heated thread here
earlier this year... the only thing everyone agreed on was that it was a
major problem, much bigger than any associated with CONNECT.

-Mark Bole



Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #6 (permalink)  
Old 02-24-2008, 01:49 PM
DA Morgan
 
Posts: n/a
Default Re: CONNECT Role Privileges

Mark Bole wrote:
> DA Morgan wrote:
>
>> Holger Baer wrote:
>>

> [...]
>
>> To the best of my knoweldge no change was made to RESOURCE although I
>> made plea for that change in 10gR3 should there be one. And if not 10gR3
>> in 11. The security risk created by these three default roles exceeds
>> any possible value they might contain.
>>

> [...]
>
> Any idea when Oracle will fix the following problem?
>
> A user granted the RESOURCE role automatically gets the UNLIMITED
> TABLESPACE system privilege. Roles technically can't be grantees for
> system privileges, but this behavior is hard-coded (an "anomaly" is what
> Tom Kyte called it).
>
> -Mark Bole


In 10gR1 v 10.1.0.4

select privilege from dba_sys_privs
where grantee = 'RESOURCE';

PRIVILEGE
-----------------
CREATE TYPE
CREATE TABLE
CREATE CLUSTER
CREATE TRIGGER
CREATE OPERATOR
CREATE SEQUENCE
CREATE INDEXTYPE
CREATE PROCEDURE

And that is all. Now you'd think CREATE VIEW would be more useful than
CREATE INDEXTYPE. But basically these roles, in the real world, are
badly misused and need to be stuck with a fork.

At least the role's name should be changed to DEVELOPER to help
discourage its misuse.
--
Daniel A. Morgan
http://www.psoug.org
damorgan@x.washington.edu
(replace x with u to respond)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #7 (permalink)  
Old 02-24-2008, 01:50 PM
Thomas Kyte
 
Posts: n/a
Default Re: CONNECT Role Privileges

In article <1117604758.138385@yasure>, DA Morgan says...
>
>Mark Bole wrote:
>> DA Morgan wrote:
>>
>>> Holger Baer wrote:
>>>

>> [...]
>>
>>> To the best of my knoweldge no change was made to RESOURCE although I
>>> made plea for that change in 10gR3 should there be one. And if not 10gR3
>>> in 11. The security risk created by these three default roles exceeds
>>> any possible value they might contain.
>>>

>> [...]
>>
>> Any idea when Oracle will fix the following problem?
>>
>> A user granted the RESOURCE role automatically gets the UNLIMITED
>> TABLESPACE system privilege. Roles technically can't be grantees for
>> system privileges, but this behavior is hard-coded (an "anomaly" is what
>> Tom Kyte called it).
>>
>> -Mark Bole

>
>In 10gR1 v 10.1.0.4
>
>select privilege from dba_sys_privs
>where grantee = 'RESOURCE';
>
>PRIVILEGE
>-----------------
>CREATE TYPE
>CREATE TABLE
>CREATE CLUSTER
>CREATE TRIGGER
>CREATE OPERATOR
>CREATE SEQUENCE
>CREATE INDEXTYPE
>CREATE PROCEDURE
>
>And that is all. Now you'd think CREATE VIEW would be more useful than
>CREATE INDEXTYPE. But basically these roles, in the real world, are
>badly misused and need to be stuck with a fork.
>
>At least the role's name should be changed to DEVELOPER to help
>discourage its misuse.


Resource and DBA are "special", their very names are special. UNLIMITED
TABLESPACE is a privilege that cannot be granted to a role,

ops$tkyte@ORA10G> grant unlimited tablespace to connect;
grant unlimited tablespace to connect
*
ERROR at line 1:
ORA-01931: cannot grant UNLIMITED TABLESPACE to a role

and the RESOURCE and DBA roles were designed to have this privilege so the very
act of granting RESOURCE or DBA to a user grants them UNLIMITED TABLESPACE
directly:

ops$tkyte@ORA10G> drop user a cascade;
User dropped.

ops$tkyte@ORA10G> create user a identified by a;
User created.

ops$tkyte@ORA10G> grant resource to a;
Grant succeeded.

ops$tkyte@ORA10G> select * from dba_sys_privs where grantee = 'A';

GRANTEE PRIVILEGE ADM
------------------------------ ---------------------------------------- ---
A UNLIMITED TABLESPACE NO



--
Thomas Kyte
Oracle Public Sector
http://asktom.oracle.com/
opinions are my own and may not reflect those of Oracle Corporation
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #8 (permalink)  
Old 02-24-2008, 01:50 PM
DA Morgan
 
Posts: n/a
Default Re: CONNECT Role Privileges

Thomas Kyte wrote:
> In article <1117604758.138385@yasure>, DA Morgan says...
>
>>Mark Bole wrote:
>>
>>>DA Morgan wrote:
>>>
>>>
>>>>Holger Baer wrote:
>>>>
>>>
>>>[...]
>>>
>>>
>>>>To the best of my knoweldge no change was made to RESOURCE although I
>>>>made plea for that change in 10gR3 should there be one. And if not 10gR3
>>>>in 11. The security risk created by these three default roles exceeds
>>>>any possible value they might contain.
>>>>
>>>
>>>[...]
>>>
>>>Any idea when Oracle will fix the following problem?
>>>
>>>A user granted the RESOURCE role automatically gets the UNLIMITED
>>>TABLESPACE system privilege. Roles technically can't be grantees for
>>>system privileges, but this behavior is hard-coded (an "anomaly" is what
>>>Tom Kyte called it).
>>>
>>>-Mark Bole

>>
>>In 10gR1 v 10.1.0.4
>>
>>select privilege from dba_sys_privs
>>where grantee = 'RESOURCE';
>>
>>PRIVILEGE
>>-----------------
>>CREATE TYPE
>>CREATE TABLE
>>CREATE CLUSTER
>>CREATE TRIGGER
>>CREATE OPERATOR
>>CREATE SEQUENCE
>>CREATE INDEXTYPE
>>CREATE PROCEDURE
>>
>>And that is all. Now you'd think CREATE VIEW would be more useful than
>>CREATE INDEXTYPE. But basically these roles, in the real world, are
>>badly misused and need to be stuck with a fork.
>>
>>At least the role's name should be changed to DEVELOPER to help
>>discourage its misuse.

>
>
> Resource and DBA are "special", their very names are special. UNLIMITED
> TABLESPACE is a privilege that cannot be granted to a role,
>
> ops$tkyte@ORA10G> grant unlimited tablespace to connect;
> grant unlimited tablespace to connect
> *
> ERROR at line 1:
> ORA-01931: cannot grant UNLIMITED TABLESPACE to a role
>
> and the RESOURCE and DBA roles were designed to have this privilege so the very
> act of granting RESOURCE or DBA to a user grants them UNLIMITED TABLESPACE
> directly:
>
> ops$tkyte@ORA10G> drop user a cascade;
> User dropped.
>
> ops$tkyte@ORA10G> create user a identified by a;
> User created.
>
> ops$tkyte@ORA10G> grant resource to a;
> Grant succeeded.
>
> ops$tkyte@ORA10G> select * from dba_sys_privs where grantee = 'A';
>
> GRANTEE PRIVILEGE ADM
> ------------------------------ ---------------------------------------- ---
> A UNLIMITED TABLESPACE NO


Thanks Tom.
--
Daniel A. Morgan
http://www.psoug.org
damorgan@x.washington.edu
(replace x with u to respond)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump


All times are GMT. The time now is 02:24 PM.


Powered by vBulletin® Version 3.6.5
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.2.0
UnixAdminTalk.com

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687