Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2061.2 Security Bulletin - Data Loss Prevention Endpoint for Windows update fixes one vulnerability (CVE-2021-31832) 14 June 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Data Loss Prevention (DLP) Endpoint Publisher: McAfee Operating System: Windows Impact/Access: Cross-site Scripting -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-31832 Original Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10360 Revision History: June 14 2021: Vendor updated advisory June 10 2021: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletins ID : SB10360 Last Modified : 6/10/2021 Summary First Published: June 8, 2021 Recent updates to this article +-------------------+---------------------------------------------------------+ | Date | Update | +-------------------+---------------------------------------------------------+ | June 10, 2021 | Removed references to needing to update the ePO | | | Extension. | +-------------------+---------------------------------------------------------+ To receive email notification when this Security Bulletin is updated, click Subscribe on the right side of the page. You must be logged on to subscribe. +----------------+---------+--------------+-----------------+--------+--------+ | | | | | |CVSS | | |Impacted | |Impact of |Severity|v3.1 | |Product: |Versions:|CVE ID: |Vulnerabilities: |Ratings:|Base/ | | | | | | |Temporal| | | | | | |Scores: | +----------------+---------+--------------+-----------------+--------+--------+ | | | |CWE-79: Improper | | | |Data Loss | | |Neutralization of| | | |Prevention (DLP)|Prior to |CVE-2021-31832|Input During Web |Medium |5.2 / | |Endpoint for |11.6.200 | |Page Generation | |4.7 | |Windows | | |('Cross-site | | | | | | |Scripting') | | | +----------------+---------+--------------+-----------------+--------+--------+ |Recommendations:|Install or update to DLP Endpoint for Windows 11.6.200 | +----------------+------------------------------------------------------------+ |Security | | |Bulletin |None | |Replacement: | | +----------------+------------------------------------------------------------+ |Location of | | |updated |http://www.mcafee.com/us/downloads/downloads.aspx | |software: | | +----------------+------------------------------------------------------------+ Article contents: o Vulnerability Description o Remediation o Acknowledgments o Frequently Asked Questions (FAQs) o Resources o Disclaimer Vulnerability Description 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/detailvulnId=CVE-2021-31832 https://cve.mitre.org/cgi-bin/cvename.cginame=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 https://docs.mcafee.com . Acknowledgments McAfee credits Ashish Arun Dhone ( LinkedIn ) for responsibly reporting this flaw. 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: 1. Right-click the McAfee 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. 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, visit the CVSS website at: https://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 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-calculatorvector=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 Where can I find a list of all Security Bulletins All Security Bulletins are published on our external PSIRT website at https:// www.mcafee.com/us/threat-center/product-security-bulletins.aspx . To see Security Bulletins for McAfee Enterprise products on this website click Enterprise Security Bulletins . 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 McAfee If you have information about a security issue or vulnerability with a McAfee product, visit the McAfee PSIRT website for instructions at https:// www.mcafee.com/us/threat-center/product-security-bulletins.aspx . To report an issue, click Report a Security Vulnerability . How does McAfee 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 McAfee 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. McAfee only publishes 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. View our PSIRT policy on the McAfee PSIRT website at https://www.mcafee.com/us/ threat-center/product-security-bulletins.aspx by clicking About PSIRT . 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 : o If you are a registered user, type your User ID and Password, and then click Log In . o 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 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 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 canceled at any time - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYMaoxeNLKJtyKPYoAQivNBAAiBf88Dw9q0vHcBsm4DsTR5WD6vQPiAhl ZgI5VLrVjclktz8FC4v+uxZvM0EFOI26cow3JkhQXRETCVRQoJPV2NbYpL7ELLBA G9OLtE48yN480lZUD65i6gNk5uUOThRLJPraeK/d8FwWYgicowWmumZ99MkC3kGW MJ6nlQWpdj5L9LYYeITDB0v1ltH6dK4T1ILLQqChg0M3q/4JpVDk/mcQ5HVcd1Ma XQSNJgxtKuhx/MukYdYdo3HUDNFI45NYs8DztEJ/Sy1X3lDeD1avTZT+PfN+aZqc PKfil6T16aj2RqGgnTGuK9gHkj0FgbdvHKoUVOgqgvjjupGSk1gjNyaIKKHdDSXN DgKDh/Wyy5/xJ9i+UEfjVcEpubFBeKLEkruAa3kQrDg1juon6THOR7JD93mBR9pd f+1ylH7DUw2tAGSSVYoU1wRdz59GoxjX0TZw56HW/gPh6Yw43AdfD5ar557a4Kp5 uZYB24mIoe0gFZ5V6vvlPeExcP0F0/ncWnJuiABlnxETHEcQW+z+xwaK2EwrRoyG 7NG4sCA0dNHAAYshKjo20Onsdsk13usCii8HDefVrQRhpiTjoerh+t02SHATMBvJ FfYUxmeXqeKI61bfSxH4IxGriNWAAzB4Yo6r48z072e1UUioaxwDf5WCy2XJXRCy i0VKdAigka4= =27vo -----END PGP SIGNATURE-----