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AUSCERT External Security Bulletin Redistribution
IBM Db2 High Performance Unload is affected by 3RD PARTY - -
Unquoted Service Path vulnerability
13 December 2019
AusCERT Security Bulletin Summary
Product: IBM Db2 High Performance Unload
Operating System: AIX
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
CVE Names: CVE-2019-4606
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IBM Db2 High Performance Unload is affected by 3RD PARTY - - Unquoted Service
IBM Db2 High Performance Unload has addressed the following
vulnerability:Unquoted Service Path
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 LUWv18.104.22.168 IF1
Db2 High Performance Unload load for LUWv6.1
Db2 High Performance Unload load for LUWv22.214.171.124
Db2 High Performance Unload load for LUW v126.96.36.199
Db2 High Performance Unload load for LUWv188.8.131.52
Db2 High Performance Unload load for LUWv5.1
Db2 High Performance Unload load for LUWv184.108.40.206
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
It is based on updating a Windows registry entry corresponding to the HPU
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\
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
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