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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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Risk Information

CVE ID: CVE-2012-5990
Tenable Advisory ID: TRA-2013-07
Credit:
Nicholas Miles, Tenable Network Security
CVSSv2 Base / Temporal Score:
4.3 / 3.9
CVSSv2 Vector:
(AV:N/AC:M/Au:N/C:N/I:P/A:N/E:POC/RL:U/RC:C)
Nessus Plugin ID: 69057
Affected Products:
Cisco Wireless Control System (WCS) 7.0.230.0
Cisco Prime Network Control System (NCS) 2.0
Risk Factor:
Medium
Additional Keywords:
CSCud18375
CWE-79

Advisory Timeline

2015-09-14 - [R1] Initial Release