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CERT Coordination Center

MailPost vulnerable file system information disclosure via HTTP GET request

Vulnerability Note VU#306086

Original Release Date: 2004-11-03 | Last Revised: 2004-11-03


A vulnerability is reported to exist in MailPost version 5.1.1sv and possibly earlier versions that may permit a remote attacker to verify the existance of files anywhere on the local system.


According to the ProCheckUp report, MailPost contains a vulnerability that may permit a remote attacker to verify the existance of files anywhere on the server's filesystem. By sending a malformed HTTP GET query string to the script, an attacker can determine whether or not a file is present on the target machine.


This information could be used to determine sensitive information about the server's environment.


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

It may be possible to mitigate this vulnerability by modifying the information returned in error messages.

Vendor Information


MailPost Affected

Notified:  August 13, 2004 Updated: November 03, 2004



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector



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

CVE IDs: None
Severity Metric: 3.00
Date Public: 2004-11-03
Date First Published: 2004-11-03
Date Last Updated: 2004-11-03 15:51 UTC
Document Revision: 4

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