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AUSCERT External Security Bulletin Redistribution
ESB-2018.1005
Open Source Samba as used in IBM QRadar SIEM is vulnerable to information
exposure. (CVE-2017-12150, CVE-2017-12151, CVE-2017-12163) (2018.04.03)
4 April 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Security QRadar SIEM
Publisher: IBM
Operating System: Linux variants
Impact/Access: Access Privileged Data -- Existing Account
Provide Misleading Information -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12163 CVE-2017-12151 CVE-2017-12150
Reference: ESB-2017.3199
ESB-2017.2495
ESB-2017.2398.2
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22015237
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Security Bulletin: Open Source Samba as used in IBM QRadar SIEM is vulnerable
to information exposure. (CVE-2017-12150, CVE-2017-12151, CVE-2017-12163)
PSIRT
Security Bulletin
Document information
More support for: IBM Security QRadar SIEM
Software version: 7.2, 7.3
Operating system(s): Linux
Software edition: All Editions
Reference #: 2015237
Modified date: 03 April 2018
Summary
Open Source Samba Vulnerabilities
Vulnerability Details
CVEID: CVE-2017-12163
DESCRIPTION: Samba could allow a remote authenticated attacker to obtain
sensitive information, caused by a memory leak over SMB1. By sending specially
crafted SMB1 data, an attacker could exploit this vulnerability to cause
portions of server memory contents to be written to a file and obtain sensitive
information.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
132351 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2017-12151
DESCRIPTION: Samba could provide weaker than expected security, caused by the
failure to properly sign and encrypt DFS redirects when the max protocol for
the original connection is set as ''SMB3''. An attacker could exploit this
vulnerability using man-in-the-middle techniques to read and alter confidential
documents.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
132350 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
CVEID: CVE-2017-12150
DESCRIPTION: Samba could allow a remote attacker to obtain sensitive
information, caused by the failure to require SMB signing in SMB1/2/3
connections. An attacker could exploit this vulnerability using
man-in-the-middle techniques to hijack client connections and obtain sensitive
information.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
132349 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
. 7.2.0 to 7.2.8 Patch 10
. 7.3.0 to 7.3.1 Patch 2
Remediation/Fixes
. QRadar/QRM/QVM/QRIF/QNI 7.2.8 Patch 11
. QRadar/QRM/QVM/QRIF/QNI 7.3.1 Patch 3
Workarounds and Mitigations
None
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References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
02 April, 2018: First Publish
*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.
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