ESB-2018.0183 - [Cisco] Cisco Web Security Appliance: Cross-site scripting - Remote with user interaction 2018-01-18

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0183
 Cisco Web Security Appliance Reflected Cross-Site Scripting Vulnerability
                              18 January 2018

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        AusCERT Security Bulletin Summary
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Product:           Cisco Web Security Appliance
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Cross-site Scripting -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0093  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-wsa1

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Cisco Security Advisory

Cisco Web Security Appliance Reflected Cross-Site Scripting Vulnerability

Medium

Advisory ID: cisco-sa-20180117-wsa1

First Published: 2018 January 17 16:00 GMT

Version 1.0: Final

Workarounds: No workarounds available

Cisco Bug IDs:

CSCvf37392

CVSS Score:

Base 6.1

Base 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X

CVE-2018-0093

CWE-79

Summary

A vulnerability in the web-based management interface of Cisco Web Security 
Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a 
reflected cross-site scripting (XSS) attack against a user of the web-based 
management interface of an affected device.

The vulnerability is due to insufficient validation of user-supplied input by
the web-based management interface of an affected device. An attacker could 
exploit this vulnerability by persuading a user of the interface to click a 
crafted link. A successful exploit could allow the attacker to execute 
arbitrary script code in the context of the interface or allow the attacker to
access sensitive browser-based information.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-wsa1

Affected Products

Vulnerable Products

This vulnerability affects Cisco Web Security Appliance. For information about
affected software releases, consult the Cisco bug ID(s) at the top of this 
advisory.

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this 
vulnerability.

Workarounds

There are no workarounds that address this vulnerability.

Fixed Software

For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.

When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade 
solution.

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software 
configurations will continue to be supported properly by the new release. If 
the information is not clear, customers are advised to contact the Cisco 
Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described 
in this advisory.

Source

This vulnerability was found during internal security testing.

URL

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-wsa1

Revision History

Version Description Section Status Date

1.0 Initial public release. Final 2018-January-17

LEGAL DISCLAIMER

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A standalone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy and may lack important information or
contain factual errors. The information in this document is intended for end 
users of Cisco products.

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