IBM Storwize V7000 Unified CIFS options incorrect permissions

storwize-cifs-incorrect-permissions (80970) The risk level is classified as MediumMedium Risk

Description:

IBM Storwize V7000 Unified could apply incorrect permissions to data, caused by an error in the SMB2 server configuration. Under certain conditions, a wrong set of CIFS options could be applied to V7000 Unified CIFS exports. This could allow a remote authenticated attacker to gain read-write access to data that was configured as read only.

*CVSS:

Base Score: 4
  Access Vector: Network
  Access Complexity: Low
  Authentication: Single
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Refer to IBM Security Bulletin S1004289 for patch, upgrade or suggested workaround information. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • IBM Security Bulletin S1004287: SONAS Fix Available for SONAS CIFS Attribute Vulnerability (CVE-2013-0454).
  • IBM Security Bulletin S1004289: Storwize V7000 Unified Fix Available for CIFS Attribute Vulnerability (CVE-2013-0454).
  • Samba Bug #8738: SMB2 server will not release unused shares.
  • BID-58655: Samba CIFS Attributes CVE-2013-0454 Remote Security Bypass Vulnerability
  • CVE-2013-0454: The SMB2 implementation in Samba 3.6.x before 3.6.6, as used on the IBM Storwize V7000 Unified 1.3 before 1.3.2.3 and 1.4 before 1.4.0.1 and possibly other products, does not properly enforce CIFS share attributes, which allows remote authenticated users to (1) write to a read-only share; (2) trigger data-integrity problems related to the oplock, locking, coherency, or leases attribute; or (3) have an unspecified impact by leveraging incorrect handling of the browseable or hide unreadable parameter.
  • SA52751: IBM Storwize V7000 Unified CIFS Attribute Handling Security Issue
  • SA52854: Samba CIFS Attribute Handling Security Issue
  • SA56900: IBM Scale Out Network Attached Storage (SONAS) CIFS Attribute Handling Security Issue

Platforms Affected:

  • IBM Scale Out Network Attached Storage 1.3
  • IBM Storwize V7000 Unified 1.3
  • IBM Storwize V7000 Unified 1.4
  • Samba Samba

Reported:

Mar 18, 2013

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