ZDI-07-057: Firebird process_packet() Remote Stack Overflow Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-07-057.html October 10, 2007
-- CVE ID: CVE-2007-4992
-- Affected Vendor: Firebird
-- Affected Products: Firebird SQL 2.0.2
-- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since October 9, 2007 by Digital Vaccine protection filter ID 5627. For further product information on the TippingPoint IPS:
-- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Firebird SQL server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the database service fbserver.exe, which binds to TCP port 3050. When processing an overly long request, a stack buffer can be overflowed through a vulnerable call to sprintf() within the function process_packet(). If properly exploited, remote control of the affected system can be attained with SYSTEM credentials.
-- Vendor Response: Firebird has issued an update to correct this vulnerability. More details can be found at:
-- Disclosure Timeline: 2007.09.14 - Vulnerability reported to vendor 2007.10.09 - Digital Vaccine released to TippingPoint customers 2007.10.10 - Coordinated public release of advisory
-- Credit: This vulnerability was discovered by an anonymous researcher.
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