iDEFENSE Security Advisory 01.19.05: MySQL MaxDB Web Agent Multiple Denial of Service Vulnerabilities

2005-01-20T00:00:00
ID SECURITYVULNS:DOC:7629
Type securityvulns
Reporter Securityvulns
Modified 2005-01-20T00:00:00

Description

MySQL MaxDB Web Agent Multiple Denial of Service Vulnerabilities

iDEFENSE Security Advisory 01.19.05 www.idefense.com/application/poi/display?id=187&type=vulnerabilities January 19, 2005

I. BACKGROUND

MaxDB by MySQL is a re-branded and enhanced version of SAP DB, SAP AG's open source database. MaxDB is a heavy-duty, SAP-certified open source database that offers high availability, scalability and a comprehensive feature set. MaxDB complements the MySQL database server, targeted for large mySAP ERP environments and other applications that require maximum enterprise-level database functionality. Further details are available at:

http://www.mysql.com/products/maxdb/

II. DESCRIPTION

Two remotely exploitable denial of service conditions have been found to exist in MySQL MaxDB and SAP DB Web Agent products.

The first vulnerability specifically exists due to a null pointer dereference in the sapdbwa_GetUserData() function. A remote attacker can request the webdav handler code with invalid parameters to cause a null pointer dereference resulting in a crash of SAP DB Web Agent.

The second vulnerability is due to insufficient handling of malformed HTTP headers. A remote attacker can submit a HTTP request with invalid headers to cause a denial of service.

III. ANALYSIS

A remote attacker can send simple HTTP requests to cause MaxDB Web Agent to crash.

IV. DETECTION

iDEFENSE has confirmed the existence of these vulnerabilities in MySQL MaxDB 7.5.0.0 on Linux and Windows platforms. It is believed that all versions prior to 7.5.0.21 are affected.

V. WORKAROUND

Employ firewalls, access control lists or other TCP/UDP restriction mechanisms to limit access to administrative systems and services.

VI. VENDOR RESPONSE

The vulnerability has been addressed in MaxDB 7.5.00.21.

Updated binaries (version 7.5.00.23) are available from:

http://dev.mysql.com/downloads/maxdb/7.5.00.html

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the following names to these issues:

CAN-2005-0081 MySQL MaxDB Web Agent Null HTTP Header Denial of Service Vulnerability

CAN-2005-0082 MySQL MaxDB Web Agent GetUserData Denial of Service Vulnerability

VIII. DISCLOSURE TIMELINE

08/20/2004 Initial vendor notification 08/24/2004 Initial vendor response 01/19/2005 Public disclosure

IX. CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

Get paid for vulnerability research http://www.idefense.com/poi/teams/vcp.jsp

VII. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDEFENSE. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please email customerservice@idefense.com for permission.

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.