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IBM DB2 Multiple Vulnerabilities
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Secunia Advisory:
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SA29784
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Release Date:
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2008-04-16
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Last Update:
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2008-07-31
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Critical:
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Less critical
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Impact:
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Unknown
Manipulation of data
Privilege escalation
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Where:
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Local system
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Solution Status:
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Partial Fix
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| Software: | DB2 Universal Database 8.x
IBM DB2 9.x
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| | CVE reference: | CVE-2007-5664 (Secunia mirror)
CVE-2007-5758 (Secunia mirror)
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Description:
Some vulnerabilities have been reported in IBM DB2, where one has an unknown impact, while others can be exploited by malicious, local users to perform certain actions with escalated privileges or gain escalated privileges.
1) A boundary error within the set-uid root db2dasrrm program can be exploited to cause a stack-based buffer overflow by setting the DASPROF environment variable to a specially crafted, overly long string.
Successful exploitation allows execution of arbitrary code with root privileges.
2) The "dasRecoveryIndex", "dasRecoveryIndex.tmp", ".dasRecoveryIndex.lock", and "dasRecoveryIndex.cor" files are created insecurely when the db2dasrrm program is started. This can be exploited via symlink attacks to overwrite arbitrary files with root privileges.
Successful exploitation requires access to an account that is allowed to start and stop the DB2 Administration Server (e.g. "dasusr1" or the "db2adm1" group).
These vulnerabilities are reported in version 9.1 (Fix Pack 4 and Fix Pack 3) on Linux. Other versions may also be affected.
3) An unspecified error exists related to the DB2FMP process. No further information is currently available.
4) A boundary error can be exploited to cause a buffer overflow in the DAS server process, which allows execution of arbitrary code with escalated privileges.
5) Two vulnerabilities can be exploited to overwrite arbitrary files or to execute arbitrary code on an affected system.
For more information see vulnerabilities #2 and #3 in:
SA29022
Vulnerabilities #3 to #5 are reported in versions prior to 9.5 Fixpak 1.
Solution:
Update to the latest versions.
Version 8 FixPak 16:
http://www-1.ibm.com/support/docview.wss?uid=swg21256235
NOTE: Reportedly, vulnerability #2 is not fixed in version 8.x.
Version 9.1 Fix Pack 4a:
http://www-1.ibm.com/support/docview.wss?uid=swg21255572
Version 9.5 Fix Pack 1:
http://www-1.ibm.com/support/docview.wss?uid=swg21287889
Provided and/or discovered by:
1) Discovered by an anonymous person and reported via iDefense Labs.
2) Joshua J. Drake, iDefense Labs.
Changelog:
2008-04-22: Added vulnerability #3 and link to "Original Advisory" section.
2008-05-16: Added vulnerability #4 and #5. Updated "Original Advisory" and "Other References" section.
2008-07-31: Updated "Solution" section with information about vulnerability #2 in DB2 8.x. Added link to "Original Advisory" section.
Original Advisory:
IBM (IZ19155):
ftp://ftp.software.ibm.com/ps/product...lish-us/aparlist/db2_v95/APARLIST.TXT
http://www-1.ibm.com/support/docview.wss?uid=swg1IZ12379
http://www-1.ibm.com/support/docview.wss?uid=swg1IZ10776
http://www-1.ibm.com/support/docview.wss?uid=swg1IZ10917
http://www-1.ibm.com/support/docview.wss?uid=swg1IZ07125
iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=689
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=688
Other References:
SA29022:
http://secunia.com/advisories/29022/
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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