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Security Bulletin: Badlock Samba vulnerability issue on IBM Storwize V7000 Unified (CVE-2016-2118)

Security Bulletin


Summary


Badlock is a loophole that affects Windows and Samba systems/client. Badlock for Samba is referenced by CVE-2016-2118 (SAMR and LSA man in the middle attacks possible) and for Windows by CVE-2016-0128 / MS16-047 (Windows SAM and LSAD Downgrade Vulnerability). When Samba is configured as Domain Controller it allows remote attackers to spoof the computer name of a secure channel's endpoints, and obtain sensitive session information, by running a crafted application  and leveraging the ability to sniff network traffic.

Vulnerability Details

Samba is used in IBM Storwize V7000 Unified to enable file management and authentication services for Microsoft Windows environments.
CVEID: CVE-2016-2118
DESCRIPTION:
Samba could allow a remote attacker to gain elevated privileges on the system, caused by the acceptance of inadequate authentication levels by the Microsoft Security Account Manager (SAM) and Local Security Authority (Domain Policy) (LSAD) remote protocols. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate an authenticated user against the SAMR or LSAD service and gain access to the Security Account Manager (SAM) database. This vulnerability is also known as the BADLOCK bug.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111935 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Storwize V7000 Unified

The product is affected when running code releases 1.5.0.0 to 1.6.0.1

Remediation/Fixes

For 1.5.* release - A fix for this issue is in version 1.5.2.4 of IBM Storwize V7000 Unified.

For 1.6.* release - A fix for this issue is in version 1.6.1.0 of IBM Storwize V7000 Unified.

Customers running an affected version of IBM Storwize V7000 Unified should upgrade to 1.5.2.4 or 1.6.1.0, so that the fix gets applied

Workarounds and Mitigations

Workarounds: None


Mitigation : None

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References

Related information

Change History

5 May 2016 : First draft

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document information

More support for: IBM Storwize V7000 Unified (2073)
1.6

Version: 1.5, 1.6

Operating system(s): IBM Storwize V7000

Reference #: S1005816

Modified date: 04 July 2016


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