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Vulnerability of Cisco Secure Access Control System: Cross Site Scripting

Synthesis of the vulnerability

An attacker can trigger a Cross Site Scripting of Cisco Secure Access Control System, in order to run JavaScript code in the context of the web site.
Severity of this computer vulnerability: 2/4.
Creation date: 16/02/2017.
Références of this announce: CERTFR-2017-AVI-052, cisco-sa-20170215-acs, CVE-2017-3838, VIGILANCE-VUL-21868.

Description of the vulnerability

The Cisco Secure Access Control System product offers a web service.

However, it does not filter received data before inserting them in generated HTML documents.

An attacker can therefore trigger a Cross Site Scripting of Cisco Secure Access Control System, in order to run JavaScript code in the context of the web site.
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This vulnerability alert impacts software or systems such as Secure ACS.

Our Vigil@nce team determined that the severity of this computer weakness alert is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this computer vulnerability.

Solutions for this threat

Cisco Secure Access Control System: solution CSCvc04838.
The solution is described on the Cisco site:
  https://tools.cisco.com/bugsearch/bug/CSCvc04838
  https://tools.cisco.com/quickview/bug/CSCvc04838
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