Public Vulnerability Reports

Ipswitch IMail Web Calendaring Arbitrary File Read Vulnerability



Ipswitch Collaboration Suite (ICS) is a comprehensive communication and
collaboration solution for Microsoft Windows with a customer base of
over 53 million users. More information is available on the vendor's


Remote exploitation of a directory traversal vulnerability in Ipswitch
Inc.'s Imail Web Calendaring server allows attackers to read arbitrary
files with System privileges.

The problem specifically exists because of a flaw in the handling of
requests for nonexistent javascript (jsp) files. By requesting a
nonexistent jsp file followed by a question mark, several sequences of
".." and then the path to a file on the system, an attacker can read
arbitrary files remotely without any authentication.

The following query demonstrates how the system's boot.ini file may be

GET /bla.jsp?....................boot.ini HTTP/1.0
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
Pragma: no-cache


Successful exploitation allows remote attackers to retrieve arbitrary
files from the target host. Exploitation does not require authentication
and does not require exploit code, as a user can simply type the
malicious query in a web browser.


iDEFENSE has confirmed the existence of this vulnerability in the latest
version of Ipswitch IMAIL, version 8.13. It is suspected that earlier
versions are also vulnerable.


Limit access to the Web Calandaring server by allowing only trusted
hosts to access TCP port 8484, the default port for Web Calandaring. If
the Web Calandaring service is not required, disable it entirely.


The vendor has released the following hotfix to fix this vulnerability
in IMail Server 8.15:

The vendor has released the following hotfix to fix this vulnerability
in IMail Server 8.2:
The vendor has released the following hotfix to fix this vulnerability
in Ipswitch Collaboration Suite 2.0:

The associated vendor advisories are available at:


The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-1252 to this issue. This is a candidate for inclusion in
the CVE list (, which standardizes names for
security problems.


04/25/2005   Initial vendor notification
05/10/2005   Initial vendor response
05/24/2005   Public disclosure


The discoverer of this vulnerability wishes to remain anonymous.

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Copyright © 2005 Verisign, Inc.

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