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SNS Advisory 77

SNS Advisory 77
Posted Sep 10, 2004
Authored by Keigo Yamazaki, Little eArth Corporation, Jamie Cameron | Site lac.co.jp

SNS Advisory 77 - A vulnerability in Usermin's Web mail function could result in arbitrary command execution upon viewing a specially crafted HTML mail. Affected Versions: Usermin 1.070, 1.080.

tags | advisory, web, arbitrary
SHA-256 | e89bdbe5b952119110222b898006b2ef7e8f0aafe483e152787abb724d0ec24b

SNS Advisory 77

Change Mirror Download
----------------------------------------------------------------------
SNS Advisory No.77
Usermin Remote Arbitrary Shell Command Execution Vulnerability

Problem first discovered on: Sun, 11 Apr 2004
Published on: Tue, 7 Sept 2004
----------------------------------------------------------------------

Severity:
---------
Medium


Overview:
---------
A vulnerability in Usermin's Web mail function could result in
arbitrary OS command execution upon viewing a specially crafted
HTML mail.


Problem Description:
--------------------
Usermin is a web interface that allows all users on a Unix system
to easily receive mails and to perform SSH and mail forwarding
configuration.

A vulnerability exists in Usermin because the module responsible
for mail transmission fails to sanitize HTML mails including a link
to another Usermin module. An attacker could take advantage of this
problem to execute arbitrary OS commands with the privileges of the
Usermin user.


Affected Versions:
------------------
Usermin Version 1.070
Usermin Version 1.080


Solution:
---------
This problem can be addressed by upgrading Usermin to version 1.090.

http://www.webmin.com/

Discovered by:
--------------
Keigo Yamazaki


Acknowledgements:
-----------------
Thanks to:

Mr. Jamie Cameron


Disclaimer:
-----------
The information contained in this advisory may be revised without
prior notice and is provided as it is. Users shall take their own risk
when taking any actions following reading this advisory. LAC Co., Ltd.
shall take no responsibility for any problems, loss or damage caused
by, or by the use of information provided here.

This advisory can be found at the following URL:
Reference:http://www.lac.co.jp/security/csl/intelligence/SNSadvisory_e/77_e.html

------------------------------------------------------------------
Secure Net Service(SNS) Security Advisory <snsadv@lac.co.jp>
Computer Security Laboratory, LAC http://www.lac.co.jp/security/
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