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MailDepot 2032 SP2 Session Expiration

MailDepot 2032 SP2 Session Expiration
Posted Sep 30, 2020
Authored by Micha Borrmann

MailDepot version 2032 SP2 (2.2.1242) suffers from a session expiration design issue.

tags | exploit
advisories | CVE-2019-19199
MD5 | 04f7f6eb7e1bcaee1a3ee7cc2f78dcc4

MailDepot 2032 SP2 Session Expiration

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Advisory ID: SYSS-2019-049
Product: MailDepot
Manufacturer: REDDOXX GmbH
Affected Version(s): 2032 SP2 (2.2.1242)
Tested Version(s): 2032 SP2 (2.2.1242)
Vulnerability Type: Insufficient Session Expiration (CWE-613)
Risk Level: Low
Solution Status: Fixed
Manufacturer Notification: 2019-11-19
Solution Date: 2020-06-09
Public Disclosure: 2020-09-29
CVE Reference: CVE-2019-19199
Authors of Advisory: Micha Borrmann (SySS GmbH)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Overview:

REDDOXX MailDepot is an e-mail archiving solution with many features
and an optional web browser user interface.

The manufacturer describes the product as follows (see [1]):

"The email archiving solution works independently from the type of mail
server, supports any type of storage and can therefore be easily
integrated into any existing infrastructure."

Due to the improper server-side invalidation of authentication tokens
when using the logout function, authentication tokens can still be
used.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Vulnerability Details:

After using the logout function, the assigned authentication token for
the REST web service can still be used for many hours, because it
is only invalidated on the client, but not on the server side.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Proof of Concept (PoC):

Storing and reusing the assigned authentication ID can easily be
demonstrated with a modifying web proxy.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Solution:

Install the provided security update.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Disclosure Timeline:

2019-11-18: Detection of the vulnerability
2019-11-19: Vulnerability reported to manufacturer
2019-11-20: Manufacturer confirms vulnerability
2019-11-21: CVE number assigned
2020-06-09: Update was released from the vendor [2]
2020-09-29: Public release of the security advisory

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

References:

[1] REDDOXX MailDepot Product Website
https://www.reddoxx.com/en/products/archiving/
[2] REDDOXX Release Information
https://www.reddoxx.com/reddoxx-appliance-2033-verfuegbar/
[3] SySS Security Advisory SYSS-2019-049
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-049.txt
[4] SySS Responsible Disclosure Policy
https://www.syss.de/en/responsible-disclosure-policy/

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Credits:

This security vulnerability was found by Micha Borrmann of SySS GmbH.

E-Mail: micha.borrmann (at) syss.de
Public Key: https://www.syss.de/fileadmin/dokumente/PGPKeys/Micha_Borrmann.asc
Key Fingerprint: 38BD 7A9C 3EA9 39C5 33F9 94D0 CFC2 D5B0 8EE0 CBB9

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Disclaimer:

The information provided in this security advisory is provided "as is"
and without warranty of any kind. Details of this security advisory
may be updated in order to provide as accurate information as
possible. The latest version of this security advisory is available on
the SySS website.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Copyright:

Creative Commons - Attribution (by) - Version 3.0
URL: http://creativecommons.org/licenses/by/3.0/deed.en
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