Rule: -- Sid: 2487 -- Summary: This event is generated when an attempt is made to exploit a buffer overflow associated with winzip's processing of certain MIME archive files. -- Impact: A successful attack may permit a buffer overflow that allows the execution of arbitrary code at the privilege level of the user running winzip. -- Detailed Information: Winzip is a program that is used for file compression on Windows hosts. A buffer overflow exists when parsing specific header fields for certain MIME file types. An overly long value passed to specific Content-Type attributes may trigger the buffer overflow and allow the execution of arbitrary code in the context of the user running winzip. -- Affected Systems: Winzip 6.x, 7.x, 8.0, 8.1 SR-1, 8.1, Winzip 9.0 beta versions -- Attack Scenarios: An attacker can entice a user to open a malformed MIME file that will invoke winzip to process it, possibly causing a a buffer overflow and the subsequent execution of arbitrary code on the vulnerable host. -- Ease of Attack: Simple. -- False Positives: None known. -- False Negatives: None known. -- Corrective Action: Upgrade to the latest non-affected version of the software. -- Contributors: Sourcefire Research Team Brian Caswell <bmc@sourcefire.com> Judy Novak <judy.novak@sourcefire.com> -- Additional References Bugtraq: http://securityfocus.com/bid/9758 --
