{"status":"success","advisory":{"_id":"683547205b16347a91c39c85","kb_acknowledgements":null,"kb_affected_list":["Clustered Data ONTAP","Data ONTAP operating in 7-Mode","NetApp Cloud Backup (formerly AltaVault)","StorageGRID (formerly StorageGRID Webscale)","StorageGRID9 (9.x and prior)"],"kb_bad_data":false,"kb_cve":["CVE-2016-3400","CVE-2016-3997","CVE-2016-3998","CVE-2016-2118"],"kb_exploitation":"Public","kb_fixes":[{"product":"StorageGRID9 (9.x and prior)","fixes":[{"link":"https://kb.netapp.com/support/index?page=content&id=1015731","cves":[]}],"instructions":"Follow the linked instructions to upgrade Samba.","wontfix":false,"eos_link":null},{"product":"NetApp Cloud Backup (formerly AltaVault)","fixes":[{"link":"http://mysupport.netapp.com/NOW/download/software/altavault_ava800/4.2/","cves":[]},{"link":"http://mysupport.netapp.com/NOW/download/software/altavault_phyapp/4.2/","cves":[]},{"link":"http://mysupport.netapp.com/NOW/download/software/altavault_virtualapp/4.2/","cves":[]}],"instructions":"","wontfix":false,"eos_link":null},{"product":"Data ONTAP operating in 7-Mode","fixes":[{"link":"http://mysupport.netapp.com/NOW/download/software/ontap/8.2.4P4/","cves":[]}],"instructions":"Option cifs.smbx_signing_required was added to enforce SMB1 signing.","wontfix":false,"eos_link":null},{"product":"StorageGRID (formerly StorageGRID Webscale)","fixes":[{"link":"https://mysupport.netapp.com/NOW/download/software/storagegrid_webscale/11.0/","cves":[]}],"instructions":"","wontfix":false,"eos_link":null},{"product":"Clustered Data ONTAP","fixes":[{"link":"https://library.netapp.com/ecmdocs/ECMP1366834/html/GUID-9C1135BA-5DEB-4E0F-9F58-3AED83DA1DD3-copy.html","cves":[]},{"link":"http://www.netapp.com/us/media/tr-4191.pdf","cves":[]}],"instructions":"Enable SMB signing following the ONTAP 8.2 product documentation. Additional information can be found in the Best Practices Guide for Clustered Data ONTAP 8.2.x and 8.3.x Windows File Services Technical Report.","wontfix":false,"eos_link":null}],"kb_impact":"Exploitation of these vulnerabilities could potentially lead to information disclosure, privilege escalation, or a Denial of Service.<br data-aura-rendered-by=\"305:248;a\" />\r\n&nbsp;\r\n<table align=\"left\" border=\"1\" cellpadding=\"0\" cellspacing=\"0\" data-aura-rendered-by=\"305:248;a\">\r\n\t<thead>\r\n\t\t<tr>\r\n\t\t\t<th colspan=\"1\" rowspan=\"1\" style=\"text-align: left; width: 10%;\">CVE</th>\r\n\t\t\t<th colspan=\"1\" rowspan=\"1\" style=\"text-align: left;\">Description</th>\r\n\t\t</tr>\r\n\t</thead>\r\n\t<tbody>\r\n\t\t<tr>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\" style=\"width: 10%;\">CVE-2016-3400</td>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\">Data ONTAP operating in 7-Mode is susceptible to a SMB man-in-the-middle attack.</td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\" style=\"width: 10%;\">CVE-2016-3997</td>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\">Clustered Data ONTAP is susceptible to a SMB man-in-the-middle attack in its default state due to SMB signing enforcement not being enabled.</td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\" style=\"width: 10%;\">CVE-2016-2118</td>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\">StorageGRID and StorageGRID Webscale relies on Samba, which is susceptible to a man-in-the-middle attack when the SAMR and LSAD protocols are used directly over TCP rather than over SMB named pipes. This vulnerability is referred to as Badlock.&nbsp;\r\n\t\t\t<ul>\r\n\t\t\t\t<li><strong>NOTE:</strong> Clustered Data ONTAP is not affected by the vulnerabilities referred to as Badlock as it does not support the DCERPC protocol over TCP. Other SMB-based man-in-the-middle attacks can be mitigated by enabling SMB signing.</li>\r\n\t\t\t\t<li><strong>NOTE:</strong>&nbsp;Data ONTAP operating in 7-Mode is not affected by the vulnerabilities referred to as Badlock as it does not support the DCERPC protocol over TCP. Consult the workarounds section for mitigation of other SMB-based man-in-the-middle attacks.</li>\r\n\t\t\t\t<li><strong>NOTE:</strong>&nbsp;NetApp AltaVault is not affected by the vulnerabilities referred to as Badlock as it does not support the SAMR or LSAD protocols.</li>\r\n\t\t\t</ul>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t<tr>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\" style=\"width: 10%;\">CVE-2016-3998</td>\r\n\t\t\t<td colspan=\"1\" rowspan=\"1\">NetApp AltaVault versions 4.1 and below are susceptible to a SMB man-in-the-middle attack.&nbsp;</td>\r\n\t\t</tr>\r\n\t</tbody>\r\n</table>\r\n","kb_internal_notes":[{"burt":"1000567","jira":"","product":"Clustered Data ONTAP"},{"burt":"1000568","jira":"","product":"Data ONTAP operating in 7-Mode"},{"burt":"1000569","jira":"","product":"NetApp Cloud Backup (formerly AltaVault)"},{"burt":"1000571","jira":"","product":"StorageGRID (formerly StorageGRID Webscale)"},{"burt":"1000570","jira":"","product":"StorageGRID9 (9.x and prior)"}],"kb_investigating_list":[],"kb_num":"9010080","kb_ref":["http://badlock.org","https://technet.microsoft.com/library/security/MS16-047","https://www.samba.org/samba/security/CVE-2016-2118.html"],"kb_rev_history":[{"comment":"Initial Public Release","date":"20160412","version":"1.0"},{"comment":"Added Bugs Online links to affected products, formatted CVSS v2 scores, added Samba reference link","date":"20160412","version":"2.0"},{"comment":"Clustered Data ONTAP added to Software Versions and Fixes & note regarding Clustered Data ONTAP added to Affected Products","date":"20160418","version":"3.0"},{"comment":"Per-product information added to Impact; NetApp AltaVault & Data ONTAP operating in 7-Mode notes added to Affected Products; Workarounds updated","date":"20160419","version":"4.0"},{"comment":"Data ONTAP operating in 7-Mode, StorageGRID & StorageGRID Webscale added to Software Versions and Fixes","date":"20160518","version":"5.0"},{"comment":"Updated Workarounds and Software Version and Fixes for StorageGRID Webscale","date":"20160913","version":"6.0"},{"comment":"Corrected the Data ONTAP operating in 7-Mode option cifs.smbx_signing_required.","date":"20170221","version":"7.0"},{"comment":"NetApp AltaVault added to Software Versions and Fixes, Final status","date":"20170512","version":"8.0"},{"comment":"Updated Workarounds and Software Version and Fixes for StorageGRID (formerly StorageGRID Webscale) with fix link","date":"20191220","version":"9.0"}],"kb_revised_list":[],"kb_scoring":{"CVE-2016-2118":"CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P/E:POC/RL:U/RC:C","CVE-2016-3400":"CVSS:2.0/AV:N/AC:M/Au:N/C:C/I:C/A:C/E:POC/RL:U/RC:C","CVE-2016-3997":"CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P/E:POC/RL:U/RC:C","CVE-2016-3998":"CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P/E:U/RL:U/RC:C"},"kb_scoring_calc":[{"cve_id":"CVE-2016-2118","range":"MEDIUM","score":6.1,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P/E:POC/RL:U/RC:C"},{"cve_id":"CVE-2016-3400","range":"HIGH","score":8.4,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C/E:POC/RL:U/RC:C"},{"cve_id":"CVE-2016-3997","range":"MEDIUM","score":6.1,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P/E:POC/RL:U/RC:C"},{"cve_id":"CVE-2016-3998","range":"MEDIUM","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P/E:U/RL:U/RC:C"}],"kb_status":"Final","kb_summary":"Multiple NetApp products implement the SMB protocol. Systems that implement the SMB protocol can be susceptible to one or more man-in-the-middle attacks which when exploited could potentially lead to information disclosure, privilege escalation, or a Denial of Service. The most well-known of these vulnerabilities is referred to as Badlock. This advisory will be updated as additional information becomes available.","kb_title":"SMB Vulnerabilities in Multiple NetApp Products","kb_unaffected_list":["7-Mode Transition Tool","ATTO FibreBridge","Brocade Fabric Operating System Firmware","Brocade Network Advisor Software","Clustered Data ONTAP Antivirus Connector","E-Series SANtricity Management Plug-ins (VMware vCenter)","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","MetroCluster Tiebreaker for clustered Data ONTAP","NetApp Manageability SDK","NetApp NFS Plug-in for VMware VAAI","NetApp Plug-in for Symantec NetBackup","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","System Setup","Virtual Storage Console for VMware vSphere 7.2 and above"],"kb_workarounds":"<ol><li>Risk can be lowered by avoiding login/authentication of privileged accounts over unprotected networks. If possible, administrators should limit the use of privileged SMB sessions to trusted networks as a partial mitigation to man-in-the-middle attacks.</li><li>Data ONTAP operating in 7-Mode prior to version 8.2.4P3D1 is capable of enforcing SMB2 signing but is not capable of enforcing SMB1 signing or completely disabling SMB1. To mitigate potential SMB man-in-the-middle attacks perform both of the following:\r\n <ul><li>Enforce SMB2 signing in Data ONTAP operating in 7-Mode</li><li>Disable SMB1 negotiation on all clients accessing Data ONTAP operating in 7-Mode SMB shares</li></ul>\r\n </li><li> Follow these instructions to upgrade Samba on StorageGRID9 (9.x and prior): <a href=\"https://kb.netapp.com/support/index?page=content&amp;id=1015731\" target=\"_blank\">https://kb.netapp.com/support/index?page=content&amp;id=1015731</a></li></ol>","ntap_advisory_id":"NTAP-20160412-0001","adv_id":"ntap-20160412-0001","published_date":"2016-04-12T00:00:00","updated_date":"2019-12-20T00:00:00","inserted_date":"2025-05-27T05:01:20.722000","modified_date":null}}