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
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:
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.
A remote attacker can send simple HTTP requests to cause MaxDB Web Agent to crash.
iDEFENSE has confirmed the existence of these vulnerabilities in MySQL MaxDB 184.108.40.206 on Linux and Windows platforms. It is believed that all versions prior to 220.127.116.11 are affected.
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:
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
The discoverer of this vulnerability wishes to remain anonymous.
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VII. LEGAL NOTICES
Copyright (c) 2005 iDEFENSE, Inc.
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