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

Summary

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

Vulnerability Details

Third Party Acknowledgement Info:

The vulnerability was reported to IBM by Rich Mirch

Relevant CVE Information:

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&gt; for the current score
CVSS Environmental Score*: Undefined
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 LUW v6.5

Db2 High Performance Unload load for LUW v6.5.0.0 IF1

Db2 High Performance Unload load for LUW v6.1

Db2 High Performance Unload load for LUW v6.1.0.3

Db2 High Performance Unload load for LUW v6.1.0.2

Db2 High Performance Unload load for LUW v6.1.0.1

Db2 High Performance Unload load for LUW v5.1

Db2 High Performance Unload load for LUW v5.1.0.1

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.