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             AUSCERT External Security Bulletin Redistribution

                 McAfee Network Security Manager fixes XSS
                                17 May 2019


        AusCERT Security Bulletin Summary

Product:           McAfee Network Security Manager
Publisher:         McAfee
Operating System:  Windows
Impact/Access:     Cross-site Scripting -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-3602  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

McAfee Security Bulletin - Network Security Manager update fixes a Cross-Site
Scripting vulnerability (CVE-2019-3602)

Security Bulletins ID   : SB10281
Last Modified           : 5/14/2019


First Published: May 14, 2019
|Impact of Vulnerability:|Cross-Site Scripting (XSS) (CWE-79)                 |
|CVE ID:                 |CVE-2019-3602                                       |
|Severity Rating:        |Medium                                              |
|CVSS v3 Base/Temporal   |4.8 / 4.6                                           |
|Scores:                 |                                                    |
|Recommendations:        |Install or upgrade to Network Security Manager (NSM)|
|                        |9.1 Update 5                                        |
|Security Bulletin       |None                                                |
|Replacement:            |                                                    |
|Affected Software:      |NSM prior to 9.1 Update 5                           |
|Location of updated     |http://www.mcafee.com/us/downloads/downloads.aspx   |
|software:               |                                                    |

Article contents:

  o Vulnerability Description
  o Remediation
  o Acknowledgments
  o Frequently Asked Questions (FAQs)
  o Resources
  o Disclaimer

Vulnerability Description
The administrative user interface of NSM did not correctly sanitize
administrator configured custom rules in all scenarios.

Cross Site Scripting (XSS) vulnerability in McAfee Network Security Manager
(NSM) prior to 9.1 Update 5 allows an authenticated administrator to embed an
XSS in the administrator interface via a specially crafted custom rule
containing HTML.
To remediate this issue, go to the Product Downloads site, and download the
applicable product update file:
|Product|Version                |Type  |Release Date|
|NSM    |9.1 Update 5 []|Update|May 14, 2019|

Download and Installation Instructions
See KB56057 for instructions on how to download McAfee products, documentation,
updates, and hotfixes. Review the Release Notes and the Installation Guide,
which you can download from the Documentation tab, for instructions on how to
install these updates.
McAfee credits Adria Alavedra Palacios for reporting this flaw.
Frequently Asked Questions (FAQs)
How do I know if my McAfee product is vulnerable or not
For Appliances:
Use the following instructions for Appliance-based products:

 1. Open the Administrator's User Interface (UI).
 2. Click the About link. The product version displays.

What is CVSS
CVSS, or Common Vulnerability Scoring System, is the result of the National
Infrastructure Advisory Council's effort to standardize a system of assessing
the criticality of a vulnerability. This system offers an unbiased criticality
score between 0 and 10 that customers can use to judge how critical a
vulnerability is and plan accordingly. For more information, visit the CVSS
website at: http://www.first.org/cvss/ .

When calculating CVSS scores, McAfee has adopted a philosophy that fosters
consistency and repeatability. Our guiding principle for CVSS scoring is to
score the exploit under consideration by itself. We consider only the immediate
and direct impact of the exploit under consideration. We do not factor into a
score any potential follow-on exploits that might be made possible by the
successful exploitation of the issue being scored.

What are the CVSS scoring metrics

CVE-2019-3602: NSM prior to 9.1 Update 5 vulnerable to XSS
|Base Score              |4.8             |
|Attack Vector (AV)      |Network (N)     |
|Attack Complexity (AC)  |Low (L)         |
|Privileges Required (PR)|High (H)        |
|User Interaction (UI)   |Required (R)    |
|Scope (S)               |Changed (C)     |
|Confidentiality (C)     |Low (L)         |
|Integrity (I)           |Low (L)         |
|Availability (A)        |None (N)        |
|Temporal Score (Overall)|4.6             |
|Exploitability (E)      |High (H)        |
|Remediation Level (RL)  |Official Fix (O)|
|Report Confidence (RC)  |Confirmed (C)   |

NOTE: The below CVSS version 3.0 vector was used to generate this score.

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