NGSSoftware Insight Security Research Advisory Name: IBM DB2 Remote Command Execution Privilege Upgrade Systems Affected: DB2 8.1 Enterprise Edition on Windows Severity: High/Low depending on environment Vendor URL: http://www.ibm.com/ Author: David Litchfield [ david@private ] Date Vendor Notified: 6th September 2003 Date of Public Advisory: 9th March 2004 Advisory number: #NISR09032004 Advisory URL: http://www.ngssoftware.com/advisories/db2rmtcmd.txt Description *********** IBM's DB2 is the market share leader for database server software. One of the components, the Remote Command Server, contains a vulnerability that can allow attackers to gain administrative privileges on the server running DB2. Details ******* DB2 with the Remote Command Server, DB2RCMD.EXE, listens on a named pipe DB2REMOTECMD and executes commands sent through it. When a connection is made to the pipe a new process is created, namely db2rcmdc.exe, and this executes the command. Whilst a valid Windows user id and password are required the command executes with the privileges of the "db2admin" account which is an administrator. This essentially means that even a low privileged "Guest" account can run commands remotely with administrative privileges. This can lead to a compromise of the server running DB2. Fix Information *************** IDM have included a fix for this problem in Fixpak 5 - http://www-306.ibm.com/cgi-bin/db2www/data/db2/udb/winos2unix/support/v8fphist.d2w/report . The APAR for this specific issue is IY53894 - http://www-306.ibm.com/cgi-bin/db2www/data/db2/udb/winos2unix/support/aparlib.d2w/display_apar_details?aparno=IY53894 . About NGSSoftware ***************** NGSSoftware design, research and develop intelligent, advanced application security assessment scanners. Based in the United Kingdom, NGSSoftware have offices in the South of London and the East Coast of Scotland. NGSSoftware's sister company NGSConsulting, offers best of breed security consulting services, specialising in application, host and network security assessments. http://www.ngssoftware.com/ Telephone +44 208 401 0070 Fax +44 208 401 0076 enquiries@private
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