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Security Bulletin: Multiple vulnerabilities in ISC BIND and Samba - including Badlock - affect IBM Netezza Host Management

Security Bulletin


Summary

ISC BIND is used by IBM Netezza Host Management. Samba is delivered in IBM Netezza Host Management RHEL 5.11 and 6.6 OS upgrade kits. IBM Netezza Host Management has addressed the applicable CVEs including the vulnerability commonly referred to as "Badlock."

Vulnerability Details

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: 8.3
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:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

CVEID: CVE-2015-5370
DESCRIPTION:
Samba is vulnerable to a denial of service, caused by the improper validation of DCE-RPC packets by the DCE-RPC client and server implementations. An attacker could exploit this vulnerability using man-in-the-middle techniques to downgrade a secure connection to an insecure one and consume all available CPU resources.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111936 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L)

CVEID: CVE-2016-2110
DESCRIPTION:
Samba could allow a remote attacker to bypass security restrictions, caused by the failure to protect the feature negotiation of NTLMSSP from a downgrade. A remote attacker could exploit this vulnerability using man-in-the-middle techniques to clear NTLMSSP_NEGOTIATE_SIGN and NTLMSSP_NEGOTIATE_SEAL flags and perform downgrade attacks.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111937 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID: CVE-2016-2111
DESCRIPTION:
Samba could allow a remote attacker to bypass security restrictions, caused by an error in the NETLOGON service when a Domain Controller is configured. A remote attacker could exploit this vulnerability using man-in-the-middle techniques to spoof the computer name of a secure channel's endpoints and access session-related information of the spoofed computer.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111938 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID: CVE-2016-2112
DESCRIPTION:
Samba could allow a remote attacker to bypass security restrictions, caused by the failure to enforce integrity protection by the LDAP client and server. A remote attacker could exploit this vulnerability using man-in-the-middle techniques to downgrade LDAP connections.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111939 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID: CVE-2016-2115
DESCRIPTION:
Samba could allow a remote attacker to bypass security restrictions, caused by the failure to protect the integrity of SMB client connections for IPC traffic. A remote attacker could exploit this vulnerability using man-in-the-middle techniques to perform unauthorized actions.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111942 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID: CVE-2016-1286
DESCRIPTION:
ISC BIND is vulnerable to a denial of service, caused by an error when parsing signature records for DNAME resource records. A remote attacker could exploit this vulnerability to trigger an assertion failure in resolver.c or db.c and cause the named process to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111390 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2016-1285
DESCRIPTION:
ISC BIND is vulnerable to a denial of service, caused by the improper handling of control channel input. By sending a specially crafted packet, a remote attacker could exploit this vulnerability to trigger an assertion failure in sexpr.c or alist.c and cause the named process to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111389 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM Host Management 5.4.4.0

Remediation/Fixes

IBM Netezza Host Management 5.4.5.0 Link to Fix Central

The Netezza Host Management software contains the latest RHEL updates for the operating systems certified for use on IBM Netezza/PureData System for Analytics appliances. IBM recommends upgrading to the latest Netezza Host Management version to ensure that your hosts have the latest fixes, security changes, and operating system updates. IBM Support can assist you with planning for the Netezza Host Management and operating system upgrades to your appliances.

For more details on IBM Netezza Host Management security patching:

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References

Related information

Acknowledgement

None

Change History

27 April 2016: Original Version Published

*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: PureData System for Analytics

Software version: 1.0.0

Operating system(s): Platform Independent

Software edition: All Editions

Reference #: 1979985

Modified date: 27 April 2016