SetACL by Helge Klein Homepage: http://setacl.sourceforge.net Version: 2.0.2.0 Copyright: Helge Klein License: GPL -V-E-R-S-I-O-N--2.0.2.0----------------------------------------------------------------------- a) New features: - Added a parameter "-ignoreerr" which causes SetACL to ignore errors when reading/setting the security descriptor of an object. This can be useful when recursively working with large directory trees, but please use this feature only after thorough consideration. - The list function now displays control information from the security descriptor in CSV and TAB formats, too. Specifically, the auto_inherited and protected flags are displayed for DACL and SACL. - SetACL now supports very long paths, specifically paths longer than MAX_PATH which is 260 characters. This is done by prepending the following to the path: - "\\?\" for local paths - "\\?\UNC\" for UNC paths This can be seen when listing permissions. - SetACL now always disticts correctly between "c:" and "c:\". The former is called a "local file system root" while the latter is the directory "\" on drive c:. List permissions for both and you will see the difference. The latter corresponds to what you get when you right click on c: in Explorer and select Properties -> Security. I am not too sure what the former actually represents, but the documentation states that permissions set on such a local file system root are discarded upon the next reboot. b) Changed features: - The log function (invoked with the parameter -log) now checks whether the log file already exists. If yes, SetACL appends to the log instead of replacing it. This makes it easier to use SetACL in a loop or batch file. - Restore: When a file or directory does not exist any more, SetACL logs this and continues with the next file/dir. - The list function now only lists a directory name, if there is something to see. Before, the typical large directory tree with permissions set only on a few dirs would amount to a large listing only showing dirs without any permissions. Now these dirs are not shown any more and the listing is much easier to read. c) Bugfixes: - NULL SDs are now handled correctly: According to MS's documentation NULL security descriptors (meaning there is no security on the object) _should_ not exist on W2k and newer, except for the admin shares (ie. c$). One way of creating an object without a SD is to use tools that use the old low-end security API, like "net share". This creates a share with a NULL SD. SetACL now handles these cases in the following way: - When listing permissions, a line like the following is displayed (SetACL continues after that: ERROR reading SD from <\\server\c$>: The object has a NULL security descriptor - When setting permissions, above error message is displayed, too, but SetACL creates a new empty SD and proceeds as specified. - Fixed bug 867350: The actions 'trustee' and 'domain' now only read the SACL if SACL processing has been implicitly specified. This means that the privilege SE_SECURITY_NAME is only needed when you want the SACL to be processed. Previously the SACL was always read (even if no processing was necessary) resulting in the need for abovementioned privilege. -V-E-R-S-I-O-N--2.0.1.0----------------------------------------------------------------------- a) Bugfixes: - Fixed bug 794820: If a trustee did not exist in the domain specified, but in a trusted domain, the account from the trusted domain was used. Now, only accounts from the domain or computer specified are used. - Fixed bug 800866: Listing admin shares (e.g. c$) caused an access violation. This was probably due to the fact that these shares have no security descriptor. SetACL does not crash any more, but accessing admin shares still is not possible. - Fixed bug 801189: Access violation with nonexistent user and logging enabled. - Fixed bug 805067: Object paths only one character long were not supported. b) New features: - Added an action 'domain' similar to 'trustee': With it you can copy permissions from one domain to another, replace permissions from domainA by permissions from domainB, or remove all permissions from a certain domain. This should make domain migrations a lot easier. c) User interface: - Two new default values for action 'ace': You do not have to specify the mode (set, grant, ...) or whether to apply to DACL or SACL any more, if you simply want to set permissions in the DACL. Thus simple ACE strings can now be shortened from: -ace "n:domain\user;p:read;m:set;w:dacl" to -ace "n:domain\user;p:read" -V-E-R-S-I-O-N--2.0.0.6----------------------------------------------------------------------- a) Bugfixes: - Fixed bug 783703: Compiler warning with VC++ 7.1 due to signed/unsigned mismatch. - Fixed bug 787612: SetACL could crash under certain circumstances (for example, when setting the owner) due to incorrect pointer handling / freeing memory. -V-E-R-S-I-O-N--2.0.0.5----------------------------------------------------------------------- a) Bugfixes: - Fixed a bug with action "reset children" which was introduced in 2.0.0.3: the object itself was also reset, not only it's children. - Fixed bug 776277: when using one of the three trustee actions (remove/replace/copy trustee) with more than one trustee (ie. remove all ACEs belonging to two different trustees) it could happen that too many ACEs were affected by the operation. - Fixed bug 778943: When using a command like: 'SetACL -on c:\test -ot file -actn ace -ace "n:everyone;p:read;m:set;w:dacl" -rec cont_obj' SetACL correctly walked down the tree and displayed the objects it should be processing, but permissions were applied to the base object only. - Fixed bug 780246: This is related to bug #778943. Due to recursion not working correctly resetting child objects took very (!) long and did not process all child objects. Additionally the parameter "-rst was partly ignored. -V-E-R-S-I-O-N--2.0.0.4----------------------------------------------------------------------- a) Setting permissions: - Disabled a new "feature" I introduced in version 2.0.0.3 regarding the use of restore privileges: All read/write operations from/to the ACL/security descriptor were moved to the new class CSD in 2.0.0.3. The function CSD::SetSD () is now the single spot where write operations to the SD are performed. In SetSD () I first tried to set the SD via SetKernelObjectSecurity() which can write the SD without performing access checks, i.e. you could set permissions on objects you have no access to and do not own. The BIG disadvantage of SetKernelObjectSecurity() is that it is a low-level security API function and therefore does not handle inheritance at all: permissions are not propagated to sub-objects, and the "inherited" flag of the object's ACEs is not set/cleared as necessary. Since SetACL does not do this either, this normally results in incorrect ACLs. SetKernelObjectSecurity () is not used any more; SDs are set the way they were before version 2.0.0.3. b) Bugfixes: - Fixed Bug 773933: The exception handling in Split () was incompatible with Visual C++ 7.1. This has been corrected. - Fixed a bug: the security descriptor is now only written to the object if there have been actual changes. Before, it could happen that by writing to the SD the SD's control bits were cleared, resulting in the deletion of the "auto inherited" bit. This was a minor bug which had no severe consequences and occured only under special circumstances. An example that invoked the bug follows here: SetACL.exe -on c:\temp\test1 -ot file -actn setprot -op "dacl:nc" -V-E-R-S-I-O-N--2.0--f-i-n-a-l-(2-0-0-3)------------------------------------------------------ a) Listing permissions - Use of privileges: permissions are displayed even if access is denied to the object in question. This works in the (local and remote) file system and in the local registry. The privilege "SeBackupPrivilege" is needed for this. - If access to an object is denied and the "SeBackupPrivilege" is not held, the object in question is ignored and SetACL proceeds with the next object. b) Setting permissions - Use of privileges: permissions are set even if access is denied to the object in question. This works in the (local and remote) file system and in the local registry. The privilege "SeRestorePrivilege" is needed for this. - If access to an object is denied and the "SeRestorePrivilege" is not held, the object in question is ignored and SetACL proceeds with the next object. c) Various changes - Fixed bug 738227: A missing section ("Where") on the help page (printed when "setacl -help" is typed) has been added. - Fixed bug 745861: The SYNCHRONIZE flag was set on auditing ACEs, too, which resulted in all kinds of access being audited, not only the type specified. - Fixed bug 739013: If enabling the backup and restore privileges failed, the program would exit with an error. This effectively limited the use of SetACL to administrators. Now, if these privileges cannot be enabled, only an info message is displayed. - Fixed a bug: When resetting permissions using action -rstchldrn the parameter "-rst Where" was ignored. - Fixed bug 761666: When setting "man_docs" or "full" permissions on printers a third, unnecessary ACE (which had no effect) was generated. - If SetACL is run on an unsupported OS version an error message is displayed and the program exits cleanly. -V-E-R-S-I-O-N--2.0--B-e-t-a--2--------------------------------------------------------------- a) Listing permissions - The listing is written to the screen, too, if not in silent mode. - If a backup file is specified, a listing in UNICODE format will be written there. If not, the listing is written to the screen only. In other words, the parameter '-bckp' is optional. - List options need only be set if the default values (csv format, list only DACL, do not list inherited permissions) are not suitable. In other words, the parameter '-lst' is optional. - Inherited permissions are listed only if explicitly specified in the list options (e.g.: -lst "f:own;w:d;i:y"). - Owner and primary group are now listed in own format, too, if requested. - The "own" list format has been renamed to "csv". - A third, tabular, list format has been added: "tab". - Trustees can now be listed using their names, SIDs, or both. b) Various changes - Several unnecessary newlines removed from output. - Standard permission "list_folder" (file system) was not implemented correctly. Now it works as expected. This bug with the ID 737212 has been fixed. -V-E-R-S-I-O-N--2.0--B-e-t-a--1--------------------------------------------------------------- This is the first public beta version of SetACL version 2. Please visit the program's homepage for information, bug reports, feature requests, and general discussion.