[NT] VPOP3 Web Mail Cross-Site Scripting Vulnerability

From: SecuriTeam (support_at_securiteam.com)
Date: 10/20/03

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      VPOP3 Web Mail Cross-Site Scripting Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.pscs.co.uk/products/vpop3/index.html> VPOP3 is "an Internet
    email server and gateway for small and medium sized businesses". A
    security vulnerability in the product allows remote attackers to steal the
    authentication cookie stored by the server, by inserting malicious HTML
    and/or JavaScript into the login page.

    DETAILS

    Vulnerable systems:
     * VPOP3 version 2.0.0e
     * VPOP3 version 2.0.0f

    Immune systems:
     * VPOP3 version 2.0.0g

    By requesting a specially crafted URL, it is possible to cause the VPOP3's
    Web Mail server to return arbitrary HTML and/or JavaScript, by using a URL
    such as:
    http://192.168.1.212:5108/index.html?redirect=admin/index.html";%0Dalert(document.cookie);%0D//

    It is possible to steal the cookie (used for authentication) from a user
    (preferably the administrator) and to impersonate him.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:expert@securiteam.com>
    SecurITeam Experts.

    ========================================

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