-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Firebird Relational Database Multiple Buffer Overflow Vulnerabilities http://risesecurity.org/advisory/RISE-2007003/ Published: October 3, 2007 Updated: October 3, 2007 INTRODUCTION There exists multiple vulnerabilities within functions of Firebird Relational Database, which when properly exploited can lead to remote compromise of the vulnerable system. These vulnerabilities were confirmed by us in the following versions of Firebird Relational Database, other versions may be also affected. Firebird WI-V2.0.1.12855 Firebird WI-V2.0.0.12748 Firebird WI-V1.5.4.4910 Firebird WI-V1.5.3.4870 Firebird LI-V2.0.1.12855 Firebird LI-V2.0.0.12748 Firebird LI-V1.5.4.4910 Firebird LI-V1.5.3.4870 DETAILS The vulnerable functions do not validate user supplied data when copying it to a stack-based buffer, resulting in a stack-based buffer overflow. The exploitation of these vulnerabilities are trivial and results in remote compromise of the vulnerable system. This is the list of vulnerable functions, some of them contain more than one stack-based buffer overflow vulnerability. 1. INET_connect (Firebird 1.5) 2. SVC_attach (Firebird 1.5) 3. isc_attach_database (Firebird 2.0) 4. isc_create_database (Firebird 2.0) These vulnerabilities can be triggered by sending specially crafted attach, create and service attach requests. Proof of concept codes for these vulnerabilities can be downloaded from our website http://risesecurity.org/. VENDOR The vulnerabilities 1 and 2 were cerrected in Firebird XX-V2.0.0.12748, 3 and 4 were corrected in Firebird XX-V2.0.3.12981. CREDITS These vulnerabilities were discovered by Adriano Lima <adriano@xxxxxxxxxxxxxxxx> and Ramon de Carvalho Valle <ramon@xxxxxxxxxxxxxxxx>. DISCLAIMER The authors reserve the right not to be responsible for the topicality, correctness, completeness or quality of the information provided in this document. Liability claims regarding damage caused by the use of any information provided, including any kind of information which is incomplete or incorrect, will therefore be rejected. APPENDIX Proof of concept codes for these vulnerabilities can be downloaded from our website http://risesecurity.org/. $Id: RISE-2007003.txt 10 2007-10-04 00:58:59Z ramon $ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) iD8DBQFHBFcWhFjK78TGSUERApYoAJ4yaoWo7aunx5WYz64IfGgxoWiKRwCfUnOW A0bgGMII9z8uFrktgk0SSds= =jnE+ -----END PGP SIGNATURE-----
