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

Created by Yuan Li on
Published URL:
https://www.ibm.com/support/pages/node/1079289
1079289

Security Bulletin


Summary

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

Vulnerability Details

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 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.

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

The vulnerability was reported to IBM by Rich Mirch

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
09 December 2019

UID

ibm11079289

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