TippingPoint Zero Day Initiative
 

Marshal MailMarshal ARJ Extraction Directory Traversal Vulnerability

ZDI-06-039: November 10th, 2006

CVE ID

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 3877, 3878. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Marshal MailMarshal (formerly of NetIQ). Authentication is not required to exploit this vulnerability.

The specific flaw exists within the extraction and scanning of ARJ compressed attachments. Due to incorrect sandboxing of extracted filenames that contain directory traversal modifiers such as "../", an attacker can cause an executable to be created in an arbitrary location.

While currently existing files can not be over written, an attacker may leverage this vulnerability in a number of ways. For example, by placing a malicious binary in the "all users" startup folder.

Vendor Response

NetIQ has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2006-07-17 - Vulnerability reported to vendor
    2006-11-10 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous