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Multiple DoS in
JAR files manipulation
procedures
April 17th 2008
Risk Level:
High
Affected versions:
All versions of IBM DB2
Database Server on
Windows platform.
Remote exploitable:
Yes (Authentication to
Database Server is
needed)
Credits:
These vulnerabilities were
discovered and
researched by Ariel
Sanchez of Application
Security Inc.
Details:
DB2 has multiple vulnerabilities
which can lead to Denial of Service
(DoS) attacks against the instance.
When RECOVERJAR and REMOVE_JAR procedures
are called with a specially crafted parameter
the DB2 instance crashes.
Any DB2 database user can exploit these
vulnerabilities since PUBLIC permissions
are granted to both procedures by default.
The RECOVERJAR and REMOVE_JAR procedures
are installed by default.
Impact:
Any remote authenticated attacker
can crash the DB2 instance.
Vendor Status:
Vendor was contacted and
a patch was released.
Fix:
To fix the problem apply
the FP16(v8), FP4a(v9.1)
and FP1(v9.5):
http://www-1.ibm.com/support/docview.wss?rs=71&uid=swg21256235
http://www-1.ibm.com/support/docview.wss?rs=71&uid=swg21255572
http://www-1.ibm.com/support/docview.wss?rs=71&uid=swg21287889
APAR:
IZ08945 - V8 FP16
IZ08512 - V9.1 FP4a
IZ15496 - V9.5 FP1
Timeline:
Vendor Notification -
9/11/2007
Vendor Response -
11/14/2007
Fix - 4/15/2008
Public Disclosure -
4/17/2008
--
Application Security,
Inc's database security
solutions have helped
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their databases from all
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threats
while also ensuring that
those organizations meet
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compliance
and audit requirements.
Disclaimer: The
information in the
advisory is believed to
be accurate
at the time of
publishing based on
currently available
information. Use
of the information
constitutes acceptance
for use in an AS IS
condition.
There are no warranties
with regard to this
information. Neither the
author nor the publisher
accepts any liability
for any direct,
indirect, or
consequential loss or
damage arising from use
of, or
reliance on, this
information.
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