Bản vá windows cve-2022-1226

First Published: August 22, 2022

Recent updates to this article

Date	Update
September 27, 2022	Updated with Hotfix 11.6.600.212.
September 14, 2022	Updated that we're working on a complete fix for 11.6.x to be released in October.

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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 11.6.600.212 and 11.9.100	CVE-2022-2330	CWE-611: Improper Restriction of XML External Entity Reference	Medium	6.5 / 5.9
Recommendations	Install or update DLP Endpoint for Windows 11.9.100, or apply the Hotfix 11.6.600.212
Security Bulletin Replacement	None
Location of updated software	Product Downloads site

Article contents:

• Vulnerability Description
• Remediation
• Acknowledgments
• Frequently Asked Questions (FAQs)
• Resources
• Disclaimer

Vulnerability Description
DLP Endpoint for Windows 11.6.600 was originally identified as containing the fix for this issue. Part of the fix was not contained in this release and we have released a hotfix to fully address the issue.

     CVE-2022-2330
Improper Restriction of XML External Entity Reference vulnerability in DLP Endpoint for Windows prior to 11.9.100 allows a remote attacker to cause the DLP Agent to access a local service that the attacker wouldn't usually have access to via a carefully constructed XML file, which the DLP Agent doesn't parse correctly.

NVD CVE-2022-2330   
MITRE CVE-2022-2330

Remediation
To remediate this issue:

• Customers using DLP for Windows 11.9.x should update to 11.9.100.
• Customers using DLP for Windows 11.6.x or earlier should upgrade to 11.9.100, or install 11.6.600.212.

Go to the Product Downloads site, and download the applicable product update file:

Product	Version	Type	Release Date
DLP Endpoint for Windows	11.9.100	Update	August 22, 2022
DLP Endpoint for Windows	11.6.600.212	Hotfix	September 27, 2022

 

Download and Installation Instructions
For instructions to download product updates and hotfixes, see KB56057 - How to download product updates and documentation. Review the Release Notes and Installation Guide for instructions on how to install these updates. All documentation is available at our Product Documentation site.

Acknowledgments
We credit Adrian Karolak for responsibly reporting this flaw.

Frequently Asked Questions (FAQs)

How do I know if my product is vulnerable or not?

For endpoint products:

Use the following instructions for endpoint or client-based products:

1. Right-click the tray shield icon on the Windows taskbar.
2. Select Open Console.
3. In the console, select Action Menu.
4. In the Action Menu, select Product Details. The product version displays.

For DLPe ePO Extension:

Use the following instructions:

1. Log on to the ePO server.
2. Click Menu, Data Protection, DLP Policy.
3. Inside the DLP console click Help, About. The product version displays.

What's CVSS?
Common Vulnerability Scoring System (CVSS) 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 determine how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website.

  When calculating CVSS scores, we adopt 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 don't 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-2022-2330: XXE vulnerability in McAfee DLP Endpoint for Windows

Base Score	6.5
Attack Vector (AV)	Network (N)
Attack Complexity (AC)	Low (L)
Privileges Required (PR)	Low (L)
User Interaction (UI)	None (N)
Scope (S)	Unchanged (U)
Confidentiality (C)	High (H)
Integrity (I)	None (N)
Availability (A)	None (N)
Temporal Score (Overall)	5.9
Exploitability (E)	Proof-of-Concept (P)
Remediation Level (RL)	Official Fix (O)
Report Confidence (RC)	Confirmed (C)

 

NOTE: This CVSS version 3.1 vector is used to generate this score.

Where can I find a list of all Security Bulletins?
All Security Bulletins are published on our Knowledge Center. 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 you?
If you have information about a security issue or vulnerability with a product, follow the instructions provided in KB95563 - Report a vulnerability.

  How do you respond to this and any other reported security flaws?
Our key priority is the security of our customers. If a vulnerability is found within any of our 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.

  We only publish 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.

  To view our PSIRT policy, see KB95564 - About PSIRT.

Resources

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Disclaimer
The information provided in this Security Bulletin is provided as is without warranty of any kind. We disclaim all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall we or our suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits, or special damages, even if we or our suppliers have been advised of the possibility of such damages. Some states don't 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 shouldn't 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 aren't 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 remain at our sole discretion and may be changed or canceled at any time.