FIX: WebDAV deletes a file instead of sending an “Access Denied” message

Applies to: Internet Information Services 7.5

Symptoms


Consider the following scenario:
  • You install Microsoft WebDAV 7.5 for IIS on a computer that is running Internet Information Services (IIS) 7.0 or IIS 7.5. 
  • You enable the WebDAV feature on a website that points to a folder. Additionally, you enable Windows Authentication.
  • A user has Read and Delete NTFS permissions on the folder. The user does not have Write permissions on the folder. 
  • You create WebDAV authoring rules to enable group access to the user for the content on the website.
  • The user opens a file from the website by using WebDAV, makes changes, and then tries to save the file. 
In this scenario, the user does not receive an "Access Denied" message. Instead, the file to which the user made changes is deleted.

Cause


The issue occurs because of an error in the Webdav.dll module.

Resolution


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. The dates and times may also change when you perform certain operations on the files.

Windows 7 and Windows Server 2008 R2 file information notes

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Webdav.dll7.5.7601.21854159,23204-Nov-201106:22x86
Webdav.dll7.5.7600.21084157,69604-Nov-201104:40x86
Webdav_simple_lock.dll7.5.7600.1638515,36014-Jul-200901:16x86
Webdav_simple_lock.dll7.5.7600.1638515,36014-Jul-200901:16x86
Webdav_simple_prop.dll7.5.7601.2185415,36004-Nov-201106:22x86
Webdav_simple_prop.dll7.5.7600.2108415,36004-Nov-201104:40x86
For all supported x64-based versions of Windows Server 2008 R2 and of Windows 7
File nameFile versionFile sizeDateTimePlatform
Webdav.dll7.5.7600.21084185,34404-Nov-201105:34x64
Webdav_simple_lock.dll7.5.7600.1638518,94414-Jul-200901:41x64
Webdav_simple_prop.dll7.5.7600.2108418,43204-Nov-201105:34x64
Webdav.dll7.5.7601.21854186,36804-Nov-201106:50x64
Webdav_simple_lock.dll7.5.7600.1638518,94414-Jul-200901:41x64
Webdav_simple_prop.dll7.5.7601.2185418,43204-Nov-201106:50x64
Webdav.dll7.5.7600.21084157,69604-Nov-201104:40x86
Webdav_simple_lock.dll7.5.7600.1638515,36014-Jul-200901:16x86
Webdav_simple_prop.dll7.5.7600.2108415,36004-Nov-201104:40x86
Webdav.dll7.5.7601.21854159,23204-Nov-201106:22x86
Webdav_simple_lock.dll7.5.7600.1638515,36014-Jul-200901:16x86
Webdav_simple_prop.dll7.5.7601.2185415,36004-Nov-201106:22x86
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Webdav.dll7.5.7600.21084457,72804-Nov-201104:26IA-64
Webdav_simple_lock.dll7.5.7600.1638543,52014-Jul-200901:49IA-64
Webdav_simple_prop.dll7.5.7600.2108439,42404-Nov-201104:26IA-64
Webdav.dll7.5.7601.21854460,28804-Nov-201104:13IA-64
Webdav_simple_lock.dll7.5.7600.1638543,52014-Jul-200901:49IA-64
Webdav_simple_prop.dll7.5.7601.2185439,42404-Nov-201104:13IA-64
Webdav.dll7.5.7600.21084157,69604-Nov-201104:40x86
Webdav_simple_lock.dll7.5.7600.1638515,36014-Jul-200901:16x86
Webdav_simple_prop.dll7.5.7600.2108415,36004-Nov-201104:40x86
Webdav.dll7.5.7601.21854159,23204-Nov-201106:22x86
Webdav_simple_lock.dll7.5.7600.1638515,36014-Jul-200901:16x86
Webdav_simple_prop.dll7.5.7601.2185415,36004-Nov-201106:22x86

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information


Additional file information for Windows Server 2008 R2 and for Windows 7

Additional files for all supported x86-based versions of Windows 7
File namePackage_1_for_kb2618752~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot Applicable
File size2,022
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_2_for_kb2618752~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot Applicable
File size1,786
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_3_for_kb2618752~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot Applicable
File size2,430
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_4_for_kb2618752~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot Applicable
File size2,142
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_for_kb2618752_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot Applicable
File size2,100
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_for_kb2618752_sp1~31bf3856ad364e35~x86~~6.1.1.0.mum
File versionNot Applicable
File size2,284
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameX86_09cd97617acdfd73ca96c6276ce69e4c_31bf3856ad364e35_6.1.7601.21854_none_5396627362cd3bda.manifest
File versionNot Applicable
File size706
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameX86_2a0dcb08416a7b9cc3f36c98d0f27457_31bf3856ad364e35_6.1.7600.21084_none_4925400d892f2e93.manifest
File versionNot Applicable
File size706
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameX86_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7600.21084_none_6ab0478caaa7e125.manifest
File versionNot Applicable
File size4,743
Date (UTC)04-Nov-2011
Time (UTC)17:14
File nameX86_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7601.21854_none_6cb73e1aa7b5c323.manifest
File versionNot Applicable
File size4,743
Date (UTC)04-Nov-2011
Time (UTC)17:14
Additional files for all supported x64-based versions of Windows Server 2008 R2 and of Windows 7
File nameAmd64_41006208e01b822d4edc25a6830d6f75_31bf3856ad364e35_6.1.7600.21084_none_a4a13fbfd3f407d8.manifest
File versionNot Applicable
File size1,062
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameAmd64_4453b076b7398b7ffedf6d7d18daba0e_31bf3856ad364e35_6.1.7601.21854_none_def9268fb374cfdf.manifest
File versionNot Applicable
File size1,062
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameAmd64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7600.21084_none_c6cee3106305525b.manifest
File versionNot Applicable
File size4,749
Date (UTC)04-Nov-2011
Time (UTC)17:51
File nameAmd64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7601.21854_none_c8d5d99e60133459.manifest
File versionNot Applicable
File size4,749
Date (UTC)04-Nov-2011
Time (UTC)17:51
File namePackage_1_for_kb2618752~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot Applicable
File size2,468
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_2_for_kb2618752~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot Applicable
File size2,022
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_3_for_kb2618752~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot Applicable
File size3,088
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_4_for_kb2618752~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot Applicable
File size2,382
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_for_kb2618752_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot Applicable
File size2,322
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_for_kb2618752_sp1~31bf3856ad364e35~amd64~~6.1.1.0.mum
File versionNot Applicable
File size2,508
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameWow64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7600.21084_none_d1238d6297661456.manifest
File versionNot Applicable
File size4,408
Date (UTC)04-Nov-2011
Time (UTC)17:51
File nameWow64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7601.21854_none_d32a83f09473f654.manifest
File versionNot Applicable
File size4,408
Date (UTC)04-Nov-2011
Time (UTC)17:51
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_cbee36d141b6a838d46f1437a4123d7e_31bf3856ad364e35_6.1.7601.21854_none_e49dcab1637b9284.manifest
File versionNot Applicable
File size1,060
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameIa64_eec0f61dc9fe67451ad0352d8998f6aa_31bf3856ad364e35_6.1.7600.21084_none_719380b8437105fb.manifest
File versionNot Applicable
File size1,060
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameIa64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7600.21084_none_6ab1eb82aaa5ea21.manifest
File versionNot Applicable
File size4,746
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameIa64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7601.21854_none_6cb8e210a7b3cc1f.manifest
File versionNot Applicable
File size4,746
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_1_for_kb2618752~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot Applicable
File size2,254
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_2_for_kb2618752~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot Applicable
File size2,664
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_for_kb2618752_rtm~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot Applicable
File size1,657
Date (UTC)04-Nov-2011
Time (UTC)16:33
File namePackage_for_kb2618752_sp1~31bf3856ad364e35~ia64~~6.1.1.0.mum
File versionNot Applicable
File size1,657
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameWow64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7600.21084_none_d1238d6297661456.manifest
File versionNot Applicable
File size4,408
Date (UTC)04-Nov-2011
Time (UTC)16:33
File nameWow64_microsoft-windows-iis-webdavbinaries_31bf3856ad364e35_6.1.7601.21854_none_d32a83f09473f654.manifest
File versionNot Applicable
File size4,408
Date (UTC)04-Nov-2011
Time (UTC)16:33