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Category:   Application (Generic)  >   CA Arcot WebFort Vendors:   CA
CA Arcot WebFort Versatile Authentication Server Input Validation Flaws Permit Cross-Site Scripting and URL Redirection Attacks
SecurityTracker Alert ID:  1025444
SecurityTracker URL:  http://securitytracker.com/id/1025444
CVE Reference:   CVE-2011-1825, CVE-2011-1826   (Links to External Site)
Date:  Apr 27 2011
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 6.2.5
Description:   Two vulnerabilities were reported in CA Arcot WebFort Versatile Authentication Server. A remote user can conduct cross-site scripting attacks.

The software does not properly filter HTML code from user-supplied input before displaying the input [CVE-2011-1825]. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the CA Arcot WebFort software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

A remote user can redirect the target user's browser to a different site [CVE-2011-1826].

The Administrative Console is affected. End-user pages are not affected.

Daniel Stirnimann, Compass Security AG, reported these vulnerabilities.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the CA Arcot WebFort software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

A remote user can redirect the target user's browser to a different site.

Solution:   The vendor has issued a fix (6.2.5).

The vendor's advisory is available at:

https://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID={A71F5839-D214-4719-B918-4476E4537998}

Vendor URL:  support.ca.com/irj/portal/anonymous/phpsupcontent?contentID={A71F5839-D214-4719-B918-4476E4537998} (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Red Hat Enterprise), UNIX (Solaris - SunOS), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  [Full-disclosure] CA20110426-01: Security Notice for CA Arcot WebFort Versatile Authentication Server

-----BEGIN PGP SIGNED MESSAGE-----

CA20110426-01: Security Notice for CA Arcot WebFort Versatile
Authentication Server

Issued: April 26, 2011

CA Technologies support is alerting customers to multiple security
risks with CA Arcot WebFort Versatile Authentication Server. Two
vulnerabilities exist that can allow a remote attacker to potentially
compromise web user security.

The first set of vulnerabilities, CVE-2011-1825, occur due to
insufficient handling of request parameters sent to the Arcot
Administrative Console. An attacker, who can convince a user to
follow a URL or view a webpage, can potentially conduct cross-site
scripting attacks.

The second vulnerability, CVE-2011-1826, occurs due to insufficient
filtering of a request parameter sent to the Arcot Administrative
Console. An attacker, who can convince a user to follow a URL or view
a webpage, can use redirection to potentially carry out additional
web based attacks.

Note: These vulnerabilities only affect the Administrative Console
and do not apply to end user facing pages.

Risk Rating

Medium

Platform

Windows
Solaris
Red Hat Enterprise Linux

Affected Products

CA Arcot WebFort Versatile Authentication Server (VAS) prior to 6.2.5

Non-Affected Products

CA Arcot WebFort Versatile Authentication Server (VAS) 6.2.5

How to determine if the installation is affected

Check the CA Arcot WebFort Versatile Authentication Server log file
to determine the installed release version.

1) Using Windows Explorer, navigate to the following directory

"%ARCOT_HOME%\logs"

2) Open the file "arcotwebfortstartup.log" and search for the below
string to find the version.

"STARTING Arcot WebFort"

Installations with a version prior to 6.2.5 are affected.

Solution

Upgrade to CA Arcot WebFort Versatile Authentication Server (VAS)
6.2.5.

Customers can contact support@arcot.com for additional support.

Workaround

To reduce exposure, administrators should access the Administrative
Console by bookmark and not follow any links or view any other
websites prior to visiting the console.

References

CVE-2011-1825 - WebFort XSS
CVE-2011-1826 - WebFort Redirect

CA20110426-01: Security Notice for CA Arcot WebFort Versatile
Authentication Server
(url line wraps)
https://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID={A
71F5839-D214-4719-B918-4476E4537998}

Acknowledgement

CVE-2011-1825, CVE-2011-1826 - Daniel Stirnimann, Compass Security AG

Change History

Version 1.0: Initial Release

If additional information is required, please contact CA Technologies
Support at http://support.ca.com/

If you discover a vulnerability in CA Technologies products, please
report your findings to the CA Technologies Product Vulnerability
Response Team.
(url line wraps)
https://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=17
7782

Regards,

Kevin Kotas
CA Product Vulnerability Response Team

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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