[NT] Firebird process_packet() Remote Stack Overflow Vulnerability

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Firebird process_packet() Remote Stack Overflow Vulnerability
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SUMMARY

A vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Firebird SQL server. Authentication is not
required to exploit this vulnerability.

DETAILS

Vulnerable Systems:
* Firebird SQL version 2.0.2

Immune Systems:
* Firebird SQL version 2.0.3

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:
<http://www.firebirdsql.org/rlsnotes/Firebird-2.0.3-ReleaseNotes.pdf>

http://www.firebirdsql.org/rlsnotes/Firebird-2.0.3-ReleaseNotes.pdf

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

CVE Information:
<http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4992>
CVE-2007-4992

ADDITIONAL INFORMATION

The information has been provided by <mailto:zdi-disclosures@3com.com>
The Zero Day Initiative (ZDI).
The original article can be found at:
<http://www.zerodayinitiative.com/advisories/ZDI-07-057.html>

http://www.zerodayinitiative.com/advisories/ZDI-07-057.html

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