ESB-2017.2283 - [Win][Linux][HP-UX][Solaris][AIX] IBM Db2: Reduced security - Remote/unauthenticated 2017-09-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2283
 Security Bulletin: IBM Db2 is vulnerable to an unauthorized command that
       allows the database to be activated when authentication type
                         is CLIENT (CVE-2017-1520)
                             11 September 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Db2
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1520  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22007186

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Security Bulletin: IBM Db2 is vulnerable to an unauthorized command that
allows the database to be activated when authentication type is CLIENT
(CVE-2017-1520)

Security Bulletin

Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7, 10.1, 10.5, 11.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Software edition: Advanced Enterprise Server, Advanced Workgroup Server, 
Enterprise Server, Express, Express-C, Personal, Workgroup Server

Reference #: 2007186

Modified date: 08 September 2017

Summary

For a CLIENT authentication type, a user without proper authority can activate
database. The database becomes activated, but requires authentication to 
proceed further. This does not allow unauthorized access to the database. This
issue applies to the application side.

Vulnerability Details

CVEID: CVE-2017-1520

DESCRIPTION: IBM Db2 is vulnerable to an unauthorized command that allows the
database to be activated when authentication type is CLIENT.

CVSS Base Score: 3.7

CVSS Temporal Score: See 
https://exchange.xforce.ibmcloud.com/vulnerabilities/129830 for the current 
score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, and V11.1 editions on all 
platforms are affected.

Remediation/Fixes

The recommended solution is to apply the appropriate fix for this 
vulnerability.

FIX:

Customers running any vulnerable fixpack level of an affected Program, V9.7, 
V10.1, V10.5, and V11.1, can download the special build containing the interim
fix for this issue from Fix Central. These special builds are available based
on the most recent fixpack level for each impacted release: DB2 V9.7 FP11, 
V10.1 FP6, V10.5 FP8 and V11.1.2.2 FP2. They can be applied to any affected 
fixpack level of the appropriate release to remediate this vulnerability.

Release Fixed in fix pack 	APAR 	Download URL

V9.7 	TBD 			IT21974 Special Build for V9.7 FP11:

					AIX 64-bit

					HP-UX 64-bit

					Linux 32-bit, x86-32

					Linux 64-bit, x86-64

					Linux 64-bit, POWER big endian

					Linux 64-bit, System z, System z9 or zSeries

					Solaris 64-bit, SPARC

					Solaris 64-bit, x86-64

					Windows 32-bit, x86

					Windows 64-bit, x86

V10.1 	TBD 			IT21973 Special Build for V10.1 FP6:

					AIX 64-bit

					HP-UX 64-bit

					Linux 32-bit, x86-32

					Linux 64-bit, x86-64

					Linux 64-bit, POWER big endian

					Linux 64-bit, System z, System z9 or zSeries

					Solaris 64-bit, SPARC

					Solaris 64-bit, x86-64

					Windows 32-bit, x86

					Windows 64-bit, x86

V10.5 	TBD 			IT21462 Special Build for V10.5 FP8:

					AIX 64-bit

					HP-UX 64-bit

					Linux 32-bit, x86-32

					Linux 64-bit, x86-64

					Linux 64-bit, POWER big endian

					Linux 64-bit, POWER little endian

					Linux 64-bit, System z, System z9 or zSeries

					Solaris 64-bit, SPARC

					Solaris 64-bit, x86-64

					Windows 32-bit, x86

					Windows 64-bit, x86

					Inspur

V11.1.2.2 TBD 			IT21459 Special Build for V11.1.2.2 FP2:

					AIX 64-bit

					Linux 32-bit, x86-32

					Linux 64-bit, x86-64

					Linux 64-bit, POWER little endian

					Linux 64-bit, System z, System z9 or zSeries

					Windows 32-bit, x86

					Windows 64-bit, x86

Workarounds and Mitigations

Do not use CLIENT authentication type.

References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

September 7, 2017: Original version published.

September 8, 2017: Added link to nt32 version.

*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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