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[R1] Cisco Prime Network Control System (NCS) / Wireless Control System (WCS) login.jsp requestUrl Parameter Reflected XSS

Medium

Synopsis

Cisco Prime Network Control System (NCS) and Wireless Control System (WCS) contains a flaw that allows a reflected cross-site scripting (XSS) attack. This flaw exists because the login.jsp script does not validate input to the 'requestUrl' GET parameter before returning it to users. This may allow a context-dependent attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and the server.

Solution

This has apparently been fixed in a subsequent version of each product. Tenable is working with Cisco to determine exact versions.

Proof of Concept

https://[target]:8082/login.jsp?requestUrl='><script>alert('cross site scripting');</script><div id='

Disclosure Timeline

2012-03-19 - Reported to Cisco PSIRT, who responds and assigns PSIRT-1173906751
2012-04-12 - Independently found by 2nd engineer, reported to Cisco , assigned PSIRT-0669566385
2015-09-14 - Contacted Cisco PSIRT for update on solution (believed to exist, but not obviously public)

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