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Date: | Wed, 13 May 2015 14:17:07 +0200 |
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Subject: | Re: Problem with posix flags and permission denied on domain computer |
From: | =?UTF-8?B?SmnFmcOtIEVuZ2VsdGhhbGVy?= <engycz AT gmail DOT com> |
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Digging couple of hours found the cause. File security.cc line 389 RtlGetGroupSecurityDescriptor gets group SID "DOM_LAN\Domain Users" but this group is not in Access list parsed in get_attribute_from_acl function. I think this is not only my problem and hope Cygwin will be fixed. Powershell get-acl: PS D:\> get-acl foo|format-list Path : Microsoft.PowerShell.Core\FileSystem::D:\foo Owner : DOM_LAN\engycz Group : DOM_LAN\Domain Users Access : BUILTIN\Administrators Allow FullControl NT AUTHORITY\SYSTEM Allow FullControl NT AUTHORITY\Authenticated Users Allow Modify, Synchronize BUILTIN\Users Allow ReadAndExecute, Synchronize Audit : Sddl : O:S-1-5-21-270207346-1464484900-1734353810-5370G:DUD:(A;ID;FA;;;BA)(A;ID;FA;;;SY)(A;ID;0x1301bf;;;AU)(A;ID;0x1200a9;;;BU) ========= PS D:\> get-acl bar|format-list Path : Microsoft.PowerShell.Core\FileSystem::D:\bar Owner : DOM_LAN\engycz Group : DOM_LAN\Domain Users Access : DOM_LAN\engycz Deny ReadData, ReadExtendedAttributes, ExecuteFile Everyone Allow ReadAttributes, ReadPermissions, Synchronize NT AUTHORITY\Authenticated Users Allow Modify, Synchronize NT AUTHORITY\SYSTEM Allow FullControl BUILTIN\Administrators Allow FullControl BUILTIN\Users Allow ReadAndExecute, Synchronize DOM_LAN\Domain Users Allow ReadAndExecute, Synchronize DOM_LAN\engycz Allow ReadAttributes, WriteAttributes, Delete, ReadPermissions, ChangePermissions, TakeOwnership, Synchronize Audit : Sddl : O:S-1-5-21-270207346-1464484900-1734353810-5370G:DUD:P(D;;CCSWWP;;;S-1-5-21-270207346-1464484900-1734353810-5370)(A;;0x120080;;;WD)(A;;0x1301bf;;;AU)( A;;FA;;;SY)(A;;FA;;;BA)(A;;0x1200a9;;;BU)(A;;0x1200a9;;;DU)(A;;0x1f0180;;;S-1-5-21-270207346-1464484900-1734353810-5370) 2015-05-12 21:02 GMT+02:00 Jiřà Engelthaler <engycz AT gmail DOT com>: > I have problem with posix file flags and permission denied on computer > which is in domain. I have file on disk D: named foo. It is accessible > both in Windows and in Cygwin as /cygdrive/d/foo but has flags > ----rwx---+. If I copy this file to file named bar, it is not > accessible in Cygwin nor in Windows. > Fresh Windows installation, fresh Cygwin 2.0.2-1, foo file created in > notepad. As user engycz I'm member of group "NT > AUTHORITY\Authenticated Users" and "BUILTIN\Users" so I have R/W > access to foo. > > $ ls -al foo > ----rwx---+ 1 engycz Domain Users 5 12. 5 20.15 foo > > $ cat foo > hello > > $ getfacl.exe foo > # file: foo > # owner: engycz > # group: Domain Users > user::--- > group::--- > group:Authenticated Users:rwx > group:SYSTEM:rwx > group:Administrators:rwx > group:Users:r-x > mask:rwx > other:--- > > $ icacls.exe foo > foo BUILTIN\Administrators:(I)(F) > NT AUTHORITY\SYSTEM:(I)(F) > NT AUTHORITY\Authenticated Users:(I)(M) > BUILTIN\Users:(I)(RX) > > ==================== > $ cp foo bar > ==================== > > $ ls -al bar > ----rwx---+ 1 engycz Domain Users 5 12. 5 20.18 bar > > $ cat bar > cat: bar: Permission denied > > > $ getfacl.exe bar > # file: bar > # owner: engycz > # group: Domain Users > user::--- > group::r-x > group:Authenticated Users:rwx > group:SYSTEM:rwx > group:Administrators:rwx > group:Users:r-x > mask:rwx > other:--- > > $ icacls.exe bar > bar DOM_LAN\engycz:(DENY)(S,RD,REA,X) > DOM_LAN\engycz:(D,Rc,WDAC,WO,RA,WA) > DOM_LAN\Domain Users:(RX) > Everyone:(Rc,S,RA) > BUILTIN\Administrators:(F) > NT AUTHORITY\SYSTEM:(F) > NT AUTHORITY\Authenticated Users:(M) > BUILTIN\Users:(RX) -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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