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McAfee Security Bulletin - Network Security Manager update fixes Authentication Bypass vulnerability (CVE-2019-3597)
Boletines de seguridad ID:   SB10275
Última modificación:  3/22/2019
Calificado:


Resumen

First Published: March 20, 2019
 
 Impact of Vulnerability: Authentication Bypass (CWE-592)
 CVE ID: CVE-2019-3597
 Severity Rating: Medium
 CVSS v3 Base/Temporal Scores: 6.5 / 6.2
 Recommendations: Install or update to Network Security Manager (NSM) 9.1.7.75.2 or later, 9.2.7.31 or later
 Security Bulletin Replacement: None
 Affected Software: NSM prior to 9.1.7.75.2, 9.2.7.31
 Location of updated software: http://www.mcafee.com/us/downloads/downloads.aspx
 
Article contents: Vulnerability Description
CVE-2019-3597
Authentication Bypass vulnerability in McAfee Network Security Manager (NSM) 9.x allows unauthenticated users to gain administrator rights via incorrect handling of expired GUI sessions.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-3597  
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3597
Remediation
McAfee strongly recommends that you install the latest update for your version of NSM.

Go to the Product Downloads site, and download the applicable product update/hotfix file:
 
Product Version Type Release Date
NSM 9.1.7.75.2 Hotfix February 7, 2019
NSM 9.2 Update 2 (9.2.7.31) Update March 20, 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.
Acknowledgments
McAfee credits Graziano Felline from CRIF SPA – Security Management 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-2019-3597: NSM Authentication Bypass
 
Base Score 6.5
Attack Vector (AV) Network (N)
Attack Complexity (AC) Low (L)
Privileges Required (PR) Low (L)
User Interaction (UI) Required (R)
Scope (S) Changed (C)
Confidentiality (C) Low (L)
Integrity (I) Low (L)
Availability (A) Low (L)
Temporal Score (Overall) 6.2
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.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L/E:H/RL:O/RC:C

Where can I find a list of all Security Bulletins?
All Security Bulletins are published on our external PSIRT website at http://www.mcafee.com/us/threat-center/product-security-bulletins.aspx > Security Bulletins. Security Bulletins are retired (removed) once a product is both End of Sale and End of Support (End of Life).
 
How do I report a product vulnerability to McAfee?
If you have information about a security issue or vulnerability with a McAfee product, visit the McAfee PSIRT website for instructions at http://www.mcafee.com/us/threat-center/product-security-bulletins.aspx > Report a Security Vulnerability.
 
How does McAfee respond to this and any other reported security flaws?
McAfee's key priority is the security of our customers. If a vulnerability is found within any of McAfee's software or services, we work closely with the relevant security software development team to ensure the rapid and effective development of a fix and communication plan.
 
McAfee only publishes Security Bulletins if they include something actionable such as a workaround, mitigation, version update, or hotfix; otherwise we would simply be informing the hacker community that our products are a target, putting our customers at greater risk. For products that are updated automatically, a non-actionable Security Bulletin might be published to acknowledge the discoverer.
 
View our PSIRT policy on the McAfee PSIRT website at http://www.mcafee.com/us/threat-center/product-security-bulletins.aspx > About PSIRT.
Resources
To contact Technical Support, log on to the ServicePortal and go to the Create a Service Request page at https://support.mcafee.com/ServicePortal/faces/serviceRequests/createSR:
  • If you are a registered user, type your User ID and Password, and then click Log In.
  • If you are not a registered user, click Register and complete the required fields. Your password and logon instructions will be emailed to you.
Disclaimer
The information provided in this Security Bulletin is provided as is without warranty of any kind. McAfee disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall McAfee or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if McAfee or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the preceding limitation may not apply.
 
Any future product release dates mentioned in this Security Bulletin are intended to outline our general product direction, and they should not be relied on in making a purchasing decision. The product release dates are for information purposes only, and may not be incorporated into any contract. The product release dates are not a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remains at our sole discretion and may be changed or canceled at any time.

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