Check Point Advisories

Sybase SQL Anywhere MobiLink Crafted Strings Buffer Overflow (CVE-2008-0912)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-259
Date Published:	29 Oct 2009
Severity:	Critical
Last Updated:	Tuesday 25 October, 2011
Source:
Industry Reference:	CVE-2008-0912
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Sybase MobiLink is a database-to-database synchronization application included in Sybase SQL Anywhere. It allows mobile devices to synchronize with a central consolidated database such as SQL Anywhere, Oracle, IBM DB2, and so on. There exists a buffer overflow vulnerability in the MobiLink component of Sybase SQL Anywhere. The flaw is due to boundary error when processing overly long strings in received network messages. A remote unauthenticated attacker can leverage this vulnerability to create a denial of service condition to the affected server, or inject and execute arbitrary code with privileges of currently logged-in user. In a simple attack case aimed at creating a denial of service condition, the affected Sybase MobiLink server will terminate. In a sophisticated attack scenario where the malicious user is successful in injecting and executing supplied code, the behaviour of the system is dependent on the nature the injected code. Any code injected into the vulnerable component would execute in the security context of the logged-in user.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Sybase SQL Anywhere MobiLink Crafted Strings Buffer Overflow protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Database Protection Violation.
Attack Information: Sybase SQL Anywhere MobiLink crafted strings buffer overflow