UTF-8 Volume Language Authentication Bypass Vulnerability in Data ONTAP operating in 7-Mode

circle-check-alt This advisory should be considered the single source of current, up-to-date, authorized and accurate information from NetApp.

Summary

Data ONTAP operating in 7-Mode, under certain conditions, allows unauthorized information disclosure or modification on volumes that have ".UTF-8" appended to the volume language.

Impact

Exploitation of this vulnerability may lead to unauthorized information disclosure and modification on the affected volumes.

Vulnerability Scoring Details

CVE Score Vector
CVE-2015-7746 7.1 (HIGH) AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:U/RC:C

Exploitation and Public Announcements

NetApp is aware of public discussion of this vulnerability.

Affected Products

  • Data ONTAP operating in 7-Mode

Products Not Affected

  • 7-Mode Transition Tool
  • ATTO FibreBridge - 6500N
  • Brocade Fabric Operating System Firmware
  • Brocade Network Advisor Software
  • Clustered Data ONTAP
  • Clustered Data ONTAP Antivirus Connector
  • E-Series SANtricity Storage Manager
  • E-Series SANtricity Web Services (REST API) for Web Services Proxy
  • FAS/AFF BIOS
  • Host Utilities - SAN for Linux
  • Host Utilities - SAN for Windows
  • NetApp Cloud Backup (formerly AltaVault)
  • NetApp Manageability SDK
  • NetApp NFS Plug-in for VMware VAAI
  • NetApp SANtricity SMI-S Provider
  • NetApp SMI-S Provider
  • NetApp Storage Encryption
  • NetApp VASA Provider for Clustered Data ONTAP 7.2 and above
  • OnCommand API Services
  • OnCommand Cloud Manager
  • OnCommand Insight
  • OnCommand System Manager 9.x
  • OnCommand Unified Manager for 7-Mode (core package)
  • OnCommand Workflow Automation
  • Open Systems SnapVault Agent
  • RAID Controller CTS2600 Legacy Engenio
  • Service Processor
  • Single Mailbox Recovery
  • Snap Creator Framework
  • SnapCenter
  • SnapDrive for Unix
  • SnapDrive for Windows
  • SnapManager for Exchange
  • SnapManager for Hyper-V
  • SnapManager for MS SQL
  • SnapManager for Oracle
  • SnapManager for SAP
  • SnapManager for Sharepoint
  • Storage Replication Adapter for Clustered Data ONTAP for VMware vSphere 7.2 and above
  • Storage Services Connector
  • StorageGRID (formerly StorageGRID Webscale)
  • StorageGRID9 (9.x and prior)
  • Virtual Storage Console for VMware vSphere 7.2 and above

Software Versions and Fixes

NetApp's currently available patches are listed below.


Product First Fixed in Release
Data ONTAP operating in 7-Mode http://mysupport.netapp.com/NOW/download/software/ontap/8.2.4/

Fixed under bug 954424.

Workarounds

Removing UTF-8 from the volume language will mitigate this vulnerability, but might have undesired side effects such as, but not limited to, the following:

  • Some filenames may display non-ASCII characters on clients.
  • NFSv3 clients may see non- ASCII characters if the filename previously used multi-byte characters.
  • NFSv4 and CIFS clients may see unexpected filenames when NFSv4 clients create files or directories with non-ASCII characters.

NetApp recommends that the impact of any changes be evaluated in a test environment prior to production deployment.

Obtaining Software Fixes

Software fixes will be made available through the NetApp Support website in the Software Download section.

https://mysupport.netapp.com/site/downloads/

Customers who do not have access to the Support website should contact Technical Support at the number below to obtain the patches.

Contact Information

Check http://mysupport.netapp.com for further updates.
For questions, contact NetApp at:

Technical Support
mysupport.netapp.com
1 888 4 NETAPP (1 888 463 8277) (U.S. and Canada)
+00 800 44 638277 (EMEA/Europe)
+800 800 80 800 (Asia/Pacific)

Status of This Notice

Final.

This advisory should be considered the single source of current, up-to-date, authorized and accurate information from NetApp.

This advisory is posted at the following link:
https://security.netapp.com/advisory/NTAP-20151112-0001

Revision History

Revision # Date Comments
1.0 20151112 Initial Public Release
2.0 20160318 Data ONTAP 8.1.4 fix added; moved to Final status
3.0 20160324 Formatting changes
4.0 20161117 Data ONTAP 8.1.4 fix link updated
5.0 20170830 Corrected the referenced CVE ID
6.0 20210105 Details added to Workaround

This document is provided solely for informational purposes. All information is based upon NetApp’s current knowledge and understanding of the hardware and software products tested by NetApp, and the methodology and assumptions used by NetApp. NetApp is not responsible for any errors or omissions that may be contained herein, and no warranty, representation, or other legal commitment or obligation is being provided by NetApp. © 2017 NetApp, Inc. All rights reserved. No portions of this document may be reproduced without prior written consent of NetApp, Inc.