Juniper Secure Access Input Validation Holes Permit Cross-Site Scripting Attacks
SecurityTracker Alert ID: 1024090|
SecurityTracker URL: http://securitytracker.com/id/1024090
(Links to External Site)
Updated: Jun 18 2010|
Original Entry Date: Jun 11 2010
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information|
Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes |
Version(s): prior to 6.5R3.1 (build 15255)|
A vulnerability was reported in Juniper Secure Access (IVE). A remote user can conduct cross-site scripting attacks.|
The web interface does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target authenticated user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the web interface 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.
The vendor was notified on October 12, 2009.
Richard Brain of ProCheckUp Ltd (www.procheckup.com) reported this vulnerability.
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the web interface, 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.|
The vendor has issued a fix (6.5R3.1 (build 15255))|
The vendor's advisory is available at:
Vendor URL: www.juniper.net/ (Links to External Site)
Input validation error|
Source Message Contents
Subject: PR09-17: Juniper Secure Access seriers (Juniper IVE) authenticated XSS & REDIRECTION|
PR09-17: Juniper Secure Access series (Juniper IVE) authenticated XSS &
Vulnerability found: 12th October 2009
Vendor informed: 12 October 2009
Severity: Medium (Script injection)
There are multiple authenticated Cross-site Scripting vulnerability on
Junipers, IVE web interface.
Procheckup has found by making a malformed authenticated request to the
IVE Web interface, that vanilla cross site scripting (XSS) attacks are
Successfully tested on:
Juniper Networks IVE
version 6.5R1 (Build 14599)
version 6.5R2 (Build 14951)
Proof of concepts:
1) The configuration program is vulnerable to a GET cookie XSS attack
GET /dana/nc/ncrun.cgi?launch_nc=1 HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)
Cookie: DSPREAUTH=; DSFirstAccess=1255332662; DSHCSTARTED=x;
DSASSERTREF=x; DSLastAccess=1255332662; lastRealm=Users;
DSSIGNIN=url_default; DSOSMLOGIN=x; DSIVS=; DSCheckBrowser=x;
RESULTS (PART OF)
<PARAM NAME="AutoStart" VALUE="false"><param name="locale" value="en">
<param name="upgradeMode" value="">
<param name="Parameter1" value="split-tunneling-routes=">
<param name="Parameter2" value="split-tunneling-mode=1">
<param name="Parameter3" value="nc_auto_uninstall_mode=0">
An attacker may be able to cause execution of malicious scripting code
in the browser of a user who clicks on a link or visits a malicious
webpage. The malicious code would run in the security context of the
This type of attack can result in non-persistent defacement of the
target site, or the redirection of confidential information (i.e.:
passwords or session IDs) to unauthorised third parties.
Update to version 6.5R3.1 (build 15255) or a later version.
Credits: Richard Brain of ProCheckUp Ltd (www.procheckup.com)
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