Security Bulletin - Data Loss Prevention Endpoint for Windows update fixes one vulnerability (CVE-2021-31832)
Security Bulletins ID:
SB10360
Last Modified: 2022-05-04 19:25:27 Etc/GMT
Last Modified: 2022-05-04 19:25:27 Etc/GMT
Summary
First Published: June 8, 2021
Product: | Impacted Versions: | CVE ID: | Impact of Vulnerabilities: | Severity Ratings: | CVSS v3.1 Base/Temporal Scores: |
Data Loss Prevention (DLP) Endpoint for Windows | Prior to 11.6.200 | CVE-2021-31832 | CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | Medium | 5.2 / 4.7 |
Recommendations: | Install or update to DLP Endpoint for Windows 11.6.200 | ||||
Security Bulletin Replacement: | None | ||||
Location of updated software: | Product Downloads site |
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Article contents:
- Vulnerability Description
- Remediation
- Acknowledgments
- Frequently Asked Questions (FAQs)
- Resources
- Disclaimer
The vulnerability manifests itself in the DLP Endpoint client for Windows when an administrator intentionally injects JavaScript code into the DLP ePolicy Orchestrator (ePO) administrator extension. The ePO server is not recommended to be deployed with its management interface exposed to the internet. As such the privileges required to trigger this vulnerability are High, with the Attack Vector being the local network. Once the policy is applied to the endpoints, it would be possible for an attacker to convince the end user to open a file or visit a site. This end use action would trigger a DLP policy violation, and result in the JavaScript code being executed.
CVE-2021-31832
Improper Neutralization of Input in the ePO administrator extension for McAfee Data Loss Prevention (DLP) Endpoint for Windows prior to 11.6.200 allows a remote ePO DLP administrator to inject JavaScript code into the alert configuration text field. This JavaScript will be executed when an end user triggers a DLP policy on their machine.
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-31832
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31832
Remediation
To remediate this issue, update or upgrade to DLP Endpoint for Windows 11.6.200.
Go to the Product Downloads site, and download the applicable product update file:
Product | Version | Type | Release Date |
DLP Endpoint for Windows | 11.6.200 | Update | June 8, 2021 |
Download and Installation Instructions
For instructions to download McAfee product updates and hotfixes, see: KB56057 - How to download Enterprise product updates and documentation. Review the Release Notes and the Installation Guide for instructions on how to install these updates. All documentation is available at Product Documentation site.
Acknowledgments
We credit
Frequently Asked Questions (FAQs)
How do I know if my McAfee product is vulnerable or not?
For endpoint products:
Use the following instructions for endpoint or client-based products:
- Right-click the McAfee tray shield icon on the Windows taskbar.
- Select Open Console.
- In the console, select Action Menu.
- In the Action Menu, select Product Details. The product version displays.
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.
When calculating CVSS scores, we've 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-2021-31832: Cross site scripting vulnerability in DLP Endpoint for Windows
Base Score | 5.2 |
Attack Vector (AV) | Adjacent Network (A) |
Attack Complexity (AC) | Low (L) |
Privileges Required (PR) | High (H) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | High (H) |
Integrity (I) | Low (L) |
Availability (A) | None (N) |
Temporal Score (Overall) | 4.7 |
Exploitability (E) | Proof-of-Concept (P) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Confirmed (C) |
NOTE: The below CVSS version 3.1 vector was used to generate this score.
https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N/E:P/RL:O/RC:C&version=3.1
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To view our PSIRT policy, see KB95564 - About PSIRT.
Resources
To contact Technical Support, log on to the ServicePortal and go to the Create a Service Request page at https://supportm.trellix.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.
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