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McAfee Security Bulletin: Web Gateway update fixes vulnerabilities CVE-2015-5600 and CVE-2015-7704
Security Bulletins ID:   SB10164
Last Modified:  1/9/2019


First Published: July 28, 2016
 Impact of Vulnerability:  Denial of Service (CWE-730, OWASP 2004:A9)
 Information Leak / Disclosure (CWE-200)
 CVE Numbers:  CVE-2015-5600
 Severity Rating:  Medium
 CVSS v3 Base / Temporal Scores:  CVE-2015-5600: Base: 5.3, Temporal: 4.6
 CVE-2015-7704: Base: 6.5, Temporal: 5.6
 Recommendations:  Install or update to McAfee Web Gateway (MWG) or
 Security Bulletin Replacement:  None
 Affected Software:  MWG and earlier, and earlier
 Location of Updated Software:  http://www.mcafee.com/us/downloads/downloads.aspx

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Article contents:


Information disclosure.
The OpenSSH sshd daemon does not check the list of keyboard-interactive authentication methods for duplicates. A remote attacker could use this flaw to bypass the MaxAuthTries limit, making it easier to perform password guessing attacks.
Information disclosure and denial of service.
The Network Time Protocol daemon (ntpd) as a client does not correctly check timestamps in Kiss-of-Death packets. A remote attacker could use this flaw to send a crafted Kiss-of-Death packet to an ntpd client that would increase the client's polling interval value and effectively disable synchronization with the server.


Install the updated MWG version using the usual update path using the GUI or yum from the command line.

Go to the Product Downloads site and download the applicable product patch/hotfix files:
Product Type Version Release Date
MWG Maintenance Release July 26, 2016
MWG Maintenance Release July 27, 2016

For more information, see:
  • PD26617 - Web Gateway Release Notes
Download and Installation Instructions
See KB56057 for instructions on how to download McAfee products, documentation, security updates, patches, 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.


None. Install the latest Maintenance Release.


No vulnerability detection signatures are available.



Frequently Asked Questions (FAQs)

How do I know whether 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).
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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, please 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 successful exploitation of the issue being scored
What are the CVSS scoring metrics that have been used?
Base Score 5.3
Attack Vector (AV) Network (N)
Attack Complexity (AC) Low (L)
Privileges Required (PR) None (N)
User Interaction (UI) None (N)
Scope (S) Unchanged (U)
Confidentiality (C) None (N)
Integrity (I) Low (L)
Availability (A) None (N)
Temporal Score (Overall) 4.6
Exploitability (E) Proof of concept Code (P)
Remediation Level (RL) Official Fix (O)
Report Confidence (RC) Reasonable (R)

NOTE: The following CVSS version 3.0 vector was used to generate this score.
Base Score 6.5
Attack Vector (AV) Network (N)
Attack Complexity (AC) Low (L)
Privileges Required (PR) None (N)
User Interaction (UI) None (N)
Scope (S) Unchanged (U)
Confidentiality (C) None (N)
Integrity (I) Low (L)
Availability (A) Low (L)
Temporal Score (Overall) 5.6
Exploitability (E) Proof of concept code (P)
Remediation Level (RL) Official Fix (O)
Report Confidence (RC) Reasonable (R)

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

Where can I find a list of all security bulletins, or how do I report a product vulnerability?
To find a list of all security bulletins, or if you have information about a security issue or vulnerability with a McAfee product, please visit our product security website at: http://www.mcafee.com/us/threat-center/product-security-bulletins.aspx.


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