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Unusual access mask flags break access to files via CIFS

Unusual access mask flags break access to files via CIFS

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Views:: 25

Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: cifs

Last Updated:

Applies to

ONTAP 9
CIFS
Mulesoft Anypoint

Issue

The MAXIMUM ALLOWED access flag is rarely used by normal CIFS clients, but a small fraction of applications set this flag instead of specifying the capabilities they desire access to when performing a Create call.
It can be determined if a client is attempting to set the MAXIMUM ALLOWED access flag by filtering a packet capture in Wireshark using the filter "smb.access_mask == 0x02000000".