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McAfee Security Bulletin: HP Integrated Lights-Out firmware update fixes Denial of Service vulnerability on Web Gateway appliances
Security Bulletins ID:   SB10138
Last Modified:  12/20/2018


 Impact of Vulnerability:  Denial of Service
 CVE Numbers:  CVE-2015-5435
 Severity Rating:  Medium
 Base / Overall CVSS v2 Scores:  4.0 / 3.0
 Base / Overall CVSS v3 Scores:  4.9 / 4.3
 Recommendations:  Install HP Integrated Lights-Out firmware update.
 Security Bulletin Replacement:  None
 Affected Software:  See the McAfee Product Vulnerability Status lists below
 Location of Updated Software:  https://contentsecurity.mcafee.com/

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Article contents:


An unspecified vulnerability in HP Integrated Lights-Out (iLO) firmware 3 before 1.85 and 4 before 2.22 allows remote authenticated users to cause a denial of service via unknown vectors.

Please refer to HP for more information and software updates regarding this vulnerability:

This vulnerability can cause a denial of Service attack.
McAfee Product Vulnerability Status

Investigation into all McAfee products is ongoing. This security bulletin will be updated as additional information is available. Not every version of the "vulnerable and updated" products are vulnerable. See the Product Specific Notes section below for details.
Vulnerable and Updated
  1. McAfee Web Gateway Appliances (MWG)
For a description of each product, see: http://www.mcafee.com/us/apps/products-az.aspx.


Download and Installation Instructions:

HP has made the following firmware updates available to resolve this vulnerability. iLO 3 version 1.85 and iLO 4 version 2.22 are available at the following location. McAfee customers that are using any McAfee SaaS product please note that McAfee will update these products in our data centers.


Product Specific Notes

McAfee Web Gateway
The official firmware patch fixes the vulnerability. For more details and installation instructions, see KB85822.


None. Install the recommended update.



Frequently Asked Questions (FAQs)

How do I know whether my McAfee product is vulnerable or not?

For Endpoint products:
Use the following instructions for endpoint or client based products:
  1. Right-click on the McAfee tray shield icon on the Windows task bar.
  2. Select Open Console.
  3. In the console, select Action Menu.
  4. In the Action Menu, select Product Details. The product version is displayed.
For ePO / Server products:
Use the following instructions for server based products:
  • Check the version and build of ePO that is installed. For more information on how to check the version, see: KB52634.
  • Or, create a query in ePO for the product version of the product installed within your organization.
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 is displayed.
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 v2 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.

CVSS v3 scoring is in final review as of September 4, 2015. CVSS v2 will be replaced with CVSS v3 when v3 is fully approved. Security bulletins will have scores for both versions for at least 6 months after v3 is fully approved.
What are the CVSS scoring metrics that have been used?
CVE-2015-5435: Unspecified vulnerability
 Base Score 4.0
 Related exploit range (AccessVector) Network
 Attack complexity (AccessComplexity) Low
 Level of authentication needed (Authentication) Single
 Confidentiality impact None
 Integrity impact None
 Availability impact Partial
 Temporal Score (Overall) 3.0
 Availability of exploit (Exploitability) Unproven
 Type of fix available (RemediationLevel) Official Fix
 Level of verification that vulnerability exists (ReportConfidence) Confident

NOTE: The below CVSS version 2.0 vector was used to generate this score.

Alternate CVSS v3 Scoring:
CVE-2015-5435: Unspecified vulnerability
 Base Score 4.9
 Attack Vector (AV) Network (N)
 Attack Complexity (AC) Low (L)
 Privileges Required (PR) High (H)
 User Interaction (UI) None (N)
 Scope (S) Unchanged (U)
Confidentiality (C) None (N)
Integrity (I) None (N)
Availability (A) High (H)
 Temporal Score (Overall) 4.3
 Exploitability (E) Unproven (U)
 Remediation Level (RL) Official Fix (O)
 Report Confidence (RC) Confirmed (C)

NOTE: The below CVSS version 3.0 (beta) 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.


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.


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 foregoing 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 cancelled at any time.

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