IBM DB2 UDB Arbitrary file overwrite in SYSPROC.NNSTAT procedure

2008.04.30
Credit: Team SHATTER
Risk: High
Local: Yes
Remote: Yes


CVSS Base Score: 8.5/10
Impact Subscore: 10/10
Exploitability Subscore: 6.8/10
Exploit range: Remote
Attack complexity: Medium
Authentication: Single time
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Team SHATTER Security Advisory IBM DB2 UDB Arbitrary file overwrite in SYSPROC.NNSTAT procedure April 17th 2008 Risk Level: High Affected versions: All versions of IBM DB2 Database Server. Remotely exploitable: Yes (Authentication to Database Server is needed) Credits: This vulnerability was discovered and researched by Cesar Cerrudo of Application Security Inc. Details: NNSTAT procedure retrieves currently available statistics on one or more nicknames. By supplying an existing file as a log file parameter, arbitrary files can be overwritten on the system. The NNSTAT procedure is installed by default. Impact: Any low privileged user can exploit this vulnerability to execute arbitrary code. 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: IZ06976 - V8 FP16 IZ06977 - V9.1 FP4a IZ10776 - 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 over 900 organizations secure their databases from all internal and external threats while also ensuring that those organizations meet or exceed regulatory 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFICHZ29EOAcmTuFN0RAgqDAKDUQdPaRINjA6b6vXUe3QZbuaKlBwCfZowx 1MlfPobx4kUeE5IcLMTxOjk= =XaFf -----END PGP SIGNATURE-----


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