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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== 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 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. 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