Check Point Advisories

Qualcomm WorldMail IMAP Literal Token Parsing Buffer Overflow (CVE-2005-4267)

Vulnerability
Protection

Check Point Reference:	CPAI-2005-352
Date Published:	5 Nov 2009
Severity:	Critical
Last Updated:	Thursday 05 November, 2009
Source:
Industry Reference:	CVE-2005-4267
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The Internet Message Access Protocol (IMAP) allows the access and manipulation of electronic mail. A buffer overflow vulnerability exists in the IMAP service component of Qualcomm WorldMail. The flaw is caused by insufficient boundary checks when processing IMAP commands. An unauthenticated attacker may leverage this vulnerability to inject and execute arbitrary code on the target host. In a simple attack case, aimed at creating a denial of service condition, the affected IMAP service will terminate. If the service is not configured to restart automatically, then IMAP functionality will be unavailable until the server is restarted manually. In a more sophisticated attack scenario, where the malicious user is successful in injecting and executing supplied code, the behavior of the target system is dependent on the nature the injected code. Any code injected into the vulnerable component would execute in the security context of the service process, normally System. The functionality of the IMAP service will generally stop after such an attack.

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 Qualcomm WorldMail IMAP Literal Token Parsing 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: IMAP Protocol Violation.
Attack Information: Qualcomm WorldMail IMAP literal token parsing buffer overflow