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McAfee Security Bulletin: McAfee Agent patch fixes a vulnerability in its remote log viewing functionality
Security Bulletins ID:   SB10130
Last Modified:  4/7/2017
Rated:


Summary

 Impact of Vulnerability:  Path Traversal (CWE-21)
 Directory Traversal (CWE-22)
 Insecure Direct Object References (CWE-932, OWASP 2013:A4)
 CVE Numbers:  CVE-2015-7237
 Severity Rating:  Medium
 Base / Overall CVSS v2 Scores:  4.3 / 3.4
 Base / Overall CVSS v3 Scores:  4.7 / 4.2  (Pre-ratification)
 Recommendations:  Install or update to MA 5.0.2
 Security Bulletin Replacement:  None
 Affected Software:  MA 5.0.0 and MA 5.0.1
 Location of Updated Software:  http://www.mcafee.com/us/downloads/downloads.aspx

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Article contents:

Description

This McAfee Agent patch addresses a vulnerability in the remote log viewing functionality where the inputs passed to the URL were not completely validated.
 
CVE-2015-7237
Directory traversal vulnerability in the remote log viewing functionality in McAfee Agent (MA) 5.x before 5.0.2 allows remote attackers to obtain sensitive information via unspecified vectors.
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7237
 
CWE-21
Path Traversal
https://cwe.mitre.org/data/definitions/21.html
 
CWE-22
Directory Traversal
https://cwe.mitre.org/data/definitions/22.html
 
OWASP 2013:A4
Insecure Direct Object Reference
https://www.owasp.org/index.php/OWASP_Top_10
https://www.owasp.org/index.php/Top_10_2013-A4-Insecure_Direct_Object_References

Remediation

Update or install the following McAfee Agent version to remediate this vulnerability.

Go to the Product Downloads site and download the applicable product patch files:
 
Product Type Version File Name Release Date
McAfee Agent 5.0.2 for Windows              Patch 5.0.2 MA502WIN.zip August 31, 2015
McAfee Agent 5.0.2 for Linux  Patch 5.0.2 MA502LNX.zip August 31, 2015
McAfee Agent 5.0.2 for Mac OS Patch 5.0.2 MA502MAC.zip August 31, 2015
McAfee Agent 5.0.2 for Windows Embedded Patch 5.0.2 MA502WIN_Embedded.zip August 31, 2015

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.

Product Specific Notes

This vulnerability is encountered only if the following two conditions are met. Please note that these are not enabled by default:
  • The McAfee Agent remote log viewing functionality is enabled.
  • Access to remote logs is not restricted to ePO administrators.
If both of the above conditions are satisfied, a malicious user can pass unexpected inputs to McAfee Agent using the URL.
 
Affected Components:
  • McAfee Agent remote log viewing functionality

Workaround

Using any one of the following approaches will mitigate the issue:
  • Disable McAfee Agent's remote log viewing functionality through policy.
  • Restrict remote log access to ePO administrators only.

Mitigations

None.

Acknowledgements

None.

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.
For DLPe ePO Extension:
Use the following instructions:
  1. Log on to ePO server.
  2. Click Menu, Data Protection, DLP Policy.
  3. Inside the DLP console click the Help menu item, About. 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 March 2015. CVSS v2 will be replaced with CVSS v3 when v3 is fully approved.
https://www.first.org/cvss/v3/development
https://www.first.org/cvss/calculator/3.0
 
What are the CVSS scoring metrics that have been used?
 
CVSS v2 scoring:
 
 Base Score 4.3
 Related exploit range (AccessVector) Network (N)
 Attack complexity (AccessComplexity) Medium (M)
 Level of authentication needed (Authentication) None (N)
 Confidentiality impact Partial (P)
 Integrity impact None (N)
 Availability impact None (N)
 Temporal Score (Overall) 3.4
 Availability of exploit (Exploitability) Proof of concept code (POC)
 Type of fix available (RemediationLevel) Official Fix (OF)
 Level of verification that vulnerability exists (ReportConfidence) Confirmed (C)

NOTE: The below CVSS version 2.0 vector was used to generate this score.
http://nvd.nist.gov/cvss.cfm?calculator&version=2&vector=(AV:N/AC:M/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C)

Alternate CVSS v3 Scoring:
 
 Base Score 4.7
 Attack Vector (AV) Network (N)
 Attack Complexity (AC) Low (L)
 Privileges Required (PR) None (N)
 User Interaction (UI) Required (R)
 Scope (S) Changed (C)
Confidentiality (C) Low (L)
Integrity (I) None (N)
Availability (A) None (N)
 Temporal Score (Overall) 4.2
 Exploitability (E) Proof-of-Concept (P)
 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.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C

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.

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 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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