Export to Zip in the Enterprise Vault Search fails after applying KB5053594

Problem

Export to Zip in the Enterprise Vault Search fails after applying KB5053594.

Error Message

Dtrace snippets for the 'w3wp' process shows the following:

928    00:26:47.811     [9044]    (w3wp)    <4020>    EV-H    {EVS} Exception: Access to the path 'C:\WINDOWS\SystemTemp\EVExport_bb1e8b82-21a6-4002-8b58-09a58110696f.zip' is denied. Info:Zip file export failed.| || User: EV\tuser1 ||  Diag: Type:System.UnauthorizedAccessException ST:   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)|   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)|   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)|   at Telerik.Windows.Zip.ZipPackage.CreateFile(String fileName)|   at Symantec.EV.Search.Server.Business.ZipExportHandler.Create()| at Symantec.EV.Search.Server.Business.ItemManager.ExportItems(ExportInput input) Inner:None
 

Cause

This is due to a change made to the location of the temporary folder to “C:\WINDOWS\SystemTemp” by applying KB5053594, and lack of permissions to access that temporary folder.

Solution

This issue has been addressed in the following release: Enterprise Vault 15.1.1 Maintenance Release.

You can grant permission to the “C:\WINDOWS\SystemTemp” folder as an interim measure.
At a minimum, the Enterprise Vault Server's 'Users' group object needs three permissions to allow the export process to succeed:

• Traverse folder / execute file
• Create files / write data
• Create folders / append data