Vulnerability Note VU#596046

MailPost vulnerable to cross-site scripting via an executable requested with a trailing slash appended to the filename

Overview

A cross-site scripting vulnerability is reported to exist in MailPost version 5.1.1sv and possibly earlier versions.

I. Description

According to a report by ProCheckUp, MailPost is vulnerable to a Cross-Site Scripting attack by adding a trailing '/' character to the executable filename. The application fails and returns error information to the client without any filtering, this information includes user input and discloses the webroot path of the server.

II. Impact

The victim site may present malicious content to their visitors. This could be used to "sniff" sensitive data from within the web page and cookie files, including passwords, credit card numbers, and any arbitrary information the user inputs.

III. Solution

The CERT/CC is currently unaware of a practical solution to this problem.

It may be possible to configure the error pages of the application to mitigate this vulnerability.

Systems Affected

Vendor	Status	Date Updated
MailPost	Vulnerable	3-Nov-2004

References

http://www.procheckup.com/security_info/vuln_pr0411.html

Credit

Thanks to ProCheckUp for reporting this vulnerability.

This document was written by Jason A Rafail and is based on information provided by ProCheckUp.

Other Information

Date Public	11/03/2004
Date First Published	11/03/2004 11:41:25 AM
Date Last Updated	11/03/2004
CERT Advisory
CVE Name
US-CERT Technical Alerts
Metric	13.50
Document Revision	2

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