Onderwerp: Multiple Vulnerabilities In P-Synch Password Management

Multiple Vulnerabilities In P-Synch Password Management
-------------------------------------------------------
The other night I came across a server running P-Synch.
I had never heard of it so i was curious to poke around
on it a bit. Within an hour i found the vulns listed below.
Im pretty sure there are other more serious vulns in
P-Synch, but they are very picky about who they give thier
software to, even an evaluation version. So was not able
to test any further. However i encourage any admins running
P-Synch to poke around on it, just to be on the safe side.



Description
-------------------------------------------------------
P-Synch Total Password Management Solution
by M-TECH
P-Synch is a total password management solution. It is
intended to reduce the cost of ownership of password systems,
and simultaneously improve the security of password protected
systems. This is done through: -Password Synchronization.
-Enforcing an enterprise wide password strength policy.
-Allowing authenticated users to reset their own forgotten
passwords and enable their locked out accounts. -Streamlining
help desk call resolution for password resets. P-Synch is
available for both internal use, on the corporate Intranet,
as well as for the Internet deployment in B2B and B2C
applications.

http://www.securityfocus.com/products/837



Problems
-------------------------------------------------------
All of these problems are simple, self explanatory vulns
so, i'm sure the below examples will speak for themselves.
Once again this application was NOT thoroughly researced.
So anyone with a copy of P-Synch might wanna explore it
further.



Path Disclosure Vulnerability
-------------------------------------------------------
https://path/to/psynch/nph-psa.exe?lang=
https://path/to/psynch/nph-psf.exe?lang=


Code Injection Vulnerability
-------------------------------------------------------
https://path/to/psynch/nph-psf.exe?css=">[VBScript, JScript etc]
https://path/to/psynch/nph-psa.exe?css=">[VBScript, JScript etc]


File Include Vulnerability
-------------------------------------------------------
https://path/to/psynch/nph-psf.exe?c.../somesite/file
https://path/to/psynch/nph-psa.exe?c.../somesite/file



Credits
-------------------------------------------------------
All credits go to JeiAr of GulfTech Computers and CSA
Security Research http://www.gulftech.org

In-Reply-To: <20030529052621.31678.qmail@www.securityfocus.com>

The following can be taken as an official response from the vendor:
M-Tech Information Technology, Inc. (http://mtechIT.com/) to this
"vulnerability:"

1) The actual risk of these issues to production deployments of
P-Synch is nil, as users do not normally, or in our experience ever,
access P-Synch by clicking a URL on a third-party web server.

Cross-site scripting attacks only affect the web browser of
users who click a maliciously-constructed URL to a valid
application URL, and this mode of attacking user browsers is
simply not relevant to a normal P-Synch deployment.

Users access P-Synch in one of several ways, none of which
expose their browser to cross-site scripting attacks:

a) By typing a well known URL, such as "password" in their browser,
and relying on the DNS infrastructure of their organization
(e.g., password --> password.acme.com --> P-Synch server).

b) By triggering transparent password synchronization with a native
password change on some system (and where no browser is involved).

c) Using an IVR system and telephone (again, no browser).

d) By clicking on a link to P-Synch on their corporate Intranet,
which is highly unlikely to be compromised by a mangled URL.

2) A fix for both issues has been available to M-Tech customers
for some time. Despite extremely low risk, M-Tech was already
aware, in particular of the path disclosure issue, and had already
resolved it.

3) Path disclosure is trivial in this case. The fact that P-Synch
was installed on "C:\Program Files\P-Synch" is hardly sensitive
and security through obscurity is obviously a falsehood. The
P-Synch application is hardened, and knowledge on the part of
an intruder that the software is installed in a given directory,
on a machine that should in normal deployments have no filesystem
shares or other remote access mechanisms, is meaningless.

4) The contents of the filesystem of the P-Synch server are not
affected. For example, issuing a URL such as:

http://demobox/demo/psdemo/nph-psf.exe?css=c:\test.dat

will simply cause a web browser that follows this link to get
an HTML page that includes the text:

<style type="text/css" media="all">
@import "c:\test.dat";
</STYLE>

The original poster never made an effort to notify M-Tech of the
"discovered vulnerability," and does not have a legitimate copy of P-Synch
(presumably because he refused to sign a license agreement which many
customers and prospects sign daily to get a free evaluation copy of the
software). As there are extremely few P-Synch deployments facing the
Internet, it is very unlikely that the poster "came across" P-Synch by
accident.

Customers and prospects are encouraged to contact M-Tech for
more detailed information about this issue, and to download
patches if they feel the vulnerability is worth addressing.


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>From: JeiAr <jeiar@kmfms.com>
>To: bugtraq@securityfocus.com
>Subject: Multiple Vulnerabilities In P-Synch Password Management
>
>
>
>Multiple Vulnerabilities In P-Synch Password Management
>-------------------------------------------------------
>The other night I came across a server running P-Synch.
>I had never heard of it so i was curious to poke around
>on it a bit. Within an hour i found the vulns listed below.
>Im pretty sure there are other more serious vulns in
>P-Synch, but they are very picky about who they give thier
>software to, even an evaluation version. So was not able
>to test any further. However i encourage any admins running
>P-Synch to poke around on it, just to be on the safe side.
>
>
>
>Description
>-------------------------------------------------------
>P-Synch Total Password Management Solution
>by M-TECH
>P-Synch is a total password management solution. It is
>intended to reduce the cost of ownership of password systems,
>and simultaneously improve the security of password protected
>systems. This is done through: -Password Synchronization.
>-Enforcing an enterprise wide password strength policy.
>-Allowing authenticated users to reset their own forgotten
>passwords and enable their locked out accounts. -Streamlining
>help desk call resolution for password resets. P-Synch is
>available for both internal use, on the corporate Intranet,
>as well as for the Internet deployment in B2B and B2C
>applications.
>
>http://www.securityfocus.com/products/837
>
>
>
>Problems
>-------------------------------------------------------
>All of these problems are simple, self explanatory vulns
>so, i'm sure the below examples will speak for themselves.
>Once again this application was NOT thoroughly researced.
>So anyone with a copy of P-Synch might wanna explore it
>further.
>
>
>
>Path Disclosure Vulnerability
>-------------------------------------------------------
>https://path/to/psynch/nph-psa.exe?lang=
>https://path/to/psynch/nph-psf.exe?lang=
>
>
>Code Injection Vulnerability
>-------------------------------------------------------
>https://path/to/psynch/nph-psf.exe?css=">[VBScript, JScript etc]
>https://path/to/psynch/nph-psa.exe?css=">[VBScript, JScript etc]
>
>
>File Include Vulnerability
>-------------------------------------------------------
>https://path/to/psynch/nph-psf.exe?c.../somesite/file
>https://path/to/psynch/nph-psa.exe?c.../somesite/file
>
>
>
>Credits
>-------------------------------------------------------
>All credits go to JeiAr of GulfTech Computers and CSA
>Security Research http://www.gulftech.org
>