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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4662
       IBM Db2 High Performance Unload is affected by 3RD PARTY - -
                    Unquoted Service Path vulnerability
                             13 December 2019

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

Product:           IBM Db2 High Performance Unload
Publisher:         IBM
Operating System:  AIX
                   Windows
                   Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Increased Privileges            -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-4606  

Original Bulletin: 
   https://www.ibm.com/support/pages/node/1128063

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IBM Db2 High Performance Unload is affected by 3RD PARTY - - Unquoted Service
Path vulnerability

Security Bulletin

Summary

IBM Db2 High Performance Unload has addressed the following
vulnerability:Unquoted Service Path

Vulnerability Details

CVEID: CVE-2019-4606
DESCRIPTION: IBM DB2 High Performance Unload could allow a local attacker to
execute arbitrary code on the system, caused by an untrusted search path
vulnerability. By using a executable file, an attacker could exploit this
vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
168298 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Db2 High Performance Unload load for LUWv6.5
Db2 High Performance Unload load for LUWv6.5.0.0 IF1
Db2 High Performance Unload load for LUWv6.1
Db2 High Performance Unload load for LUWv6.1.0.3
Db2 High Performance Unload load for LUW v6.1.0.2
Db2 High Performance Unload load for LUWv6.1.0.1
Db2 High Performance Unload load for LUWv5.1
Db2 High Performance Unload load for LUWv5.1.0.1

Remediation/Fixes

HPU have solved the problem in the installer, so that the future releases will
not be affected.
For the existing releases and already existing installations on Windows, please
refer to below workaround method for updating the Windows service
appropriately, so that it would not be affected by this problem any more.

Workarounds and Mitigations

Workaround method:
It is based on updating a Windows registry entry corresponding to the HPU
network service.
This registry name is based on the HPU service name which is WinNetServiceXX,
where 'XX' is '51', '61' or '65', depending on the HPU version considered.
Here is the registry entry name: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\WinNetServiceXX
Under this entry, its key named 'ImagePath', containing the path of the binary
associated to the service, is the one to be updated.
It must be changed by rounding the entire path by double-quotes.
Then, in order to have this change taking effect, the HPU network service must
be restarted.

Get Notified about Future Security Bulletins

References

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