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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.4021 Endpoint Security for Windows update fixes three vulnerabilities 12 November 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Endpoint Security (ENS) for Windows Publisher: McAfee Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Cross-site Scripting -- Existing Account Denial of Service -- Existing Account Provide Misleading Information -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-7333 CVE-2020-7332 CVE-2020-7331 Original Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10335 - --------------------------BEGIN INCLUDED TEXT-------------------- McAfee Security Bulletin - Endpoint Security for Windows update fixes three vulnerabilities (CVE-2020-7331, CVE-2020-7332, and CVE-2020-7333) Security Bulletins ID : SB10335 Last Modified : 11/10/2020 Summary First Published: November 10, 2020 +----------------+-----------+-------------+----------------+--------+--------+ | | | | | |CVSS | | |Impacted | |Impact of |Severity|v3.1 | |Product: |Versions: |CVE ID: |Vulnerabilities:|Ratings:|Base/ | | | | | | |Temporal| | | | | | |Scores: | +----------------+-----------+-------------+----------------+--------+--------+ | |ENS 10.7.0 | | | | | |Endpoint |September | | | | | |Security (ENS) |2020 Update| |CWE-428: | |7.8 / | |for Windows | |CVE-2020-7331|Unquoted Search |High |7.0 | | |ENS 10.6.1 | |Path or Element | | | | |September | | | | | | |2020 Update| | | | | +----------------+-----------+-------------+----------------+--------+--------+ | |ENS 10.7.0 | | | | | | |September | |CWE-352: | | | | |2020 Update| |Cross-Site | |7.0 / | |ENS for Windows | |CVE-2020-7332|Request Forgery |High |6.3 | | |ENS 10.6.1 | |(CSRF) | | | | |September | | | | | | |2020 Update| | | | | +----------------+-----------+-------------+----------------+--------+--------+ | |ENS 10.7.0 | |CWE-79: | |4.8 / | |ENS for Windows |September |CVE-2020-7333|Cross-site |Medium |4.3 | | |2020 Update| |Scripting (XSS) | | | +----------------+-----------+-------------+----------------+--------+--------+ |Recommendations:|Install or update to ENS 10.6.1 November 2020 Update or ENS | | |10.7.0 November 2020 Update | +----------------+------------------------------------------------------------+ |Security | | |Bulletin |None | |Replacement: | | +----------------+------------------------------------------------------------+ |Location of | | |updated |http://www.mcafee.com/us/downloads/downloads.aspx | |software: | | +----------------+------------------------------------------------------------+ 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. Article contents: o Vulnerability Description o Remediation o Acknowledgments o Frequently Asked Questions (FAQs) o Resources o Disclaimer Vulnerability Description 1. CVE-2020-7331 Unquoted service executable path in McAfee Endpoint Security (ENS) prior to 10.7.0 November 2020 Update allows local users to cause a denial of service and malicious file execution via carefully crafted and named executable files. https://web.nvd.nist.gov/view/vuln/detailvulnId=CVE-2020-7331 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-7331 2. CVE-2020-7332 Cross Site Request Forgery vulnerability in the firewall ePO extension of McAfee Endpoint Security (ENS) prior to 10.7.0 November 2020 Update allows an attacker to execute arbitrary HTML code due to incorrect security configuration. https://web.nvd.nist.gov/view/vuln/detailvulnId=CVE-2020-7332 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-7332 3. CVE-2020-7333 Cross site scripting vulnerability in the firewall ePO extension of McAfee Endpoint Security (ENS) prior to 10.7.0 November 2020 Update allows administrators to inject arbitrary web script or HTML via the configuration wizard. https://web.nvd.nist.gov/view/vuln/detailvulnId=CVE-2020-7333 https://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-7333 Remediation To remediate this issue: o Customers using ENS 10.7.0: Update to ENS 10.7.0 November 2020 Update. o Customers using ENS 10.6.1 and earlier releases: Upgrade to ENS 10.7.0 November 2020 Update or update to ENS 10.6.1 November 2020 Update. Go to the Product Downloads site , and download the applicable product update file: +-------+---------------------------+------+-----------------+ |Product|Version |Type |Release Date | +-------+---------------------------+------+-----------------+ |ENS for|10.7.0 November 2020 Update|Update|November 10, 2020| |Windows| | | | +-------+---------------------------+------+-----------------+ |ENS for|10.6.1 November 2020 Update|Update|November 10, 2020| |Windows| | | | +-------+---------------------------+------+-----------------+ Download and Installation Instructions See KB56057 for instructions on how to download McAfee products, documentation, updates, and hotfixes. 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 CVE-2020-7331: McAfee credits Lockheed Martin Red Team for responsibly reporting this flaw. Frequently Asked Questions (FAQs) How do I know if my McAfee product is vulnerable or not For Endpoint Security on Windows: Use the following instructions for endpoint or client-based products: 1. Right-click the McAfee tray shield icon on the Windows taskbar. 2. Select McAfee Endpoint Security . 3. In the console, select Action Menu . 4. In the Action Menu, select About . 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 1. CVE-2020-7331: Unquoted Service Path +------------------------+--------------------+ |Base Score |7.8 | +------------------------+--------------------+ |Attack Vector (AV) |Local (L) | +------------------------+--------------------+ |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) |High (H) | +------------------------+--------------------+ |Availability (A) |High (H) | +------------------------+--------------------+ |Temporal Score (Overall)|7.0 | +------------------------+--------------------+ |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:L/AC:L/PR:L/ UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C&version=3.1 2. CVE-2020-7332: Cross-Site Request Forgery (CSRF) +------------------------+--------------------+ |Base Score |7.0 | +------------------------+--------------------+ |Attack Vector (AV) |Adjacent (A) | +------------------------+--------------------+ |Attack Complexity (AC) |Low (L) | +------------------------+--------------------+ |Privileges Required (PR)|Low (L) | +------------------------+--------------------+ |User Interaction (UI) |Required (R) | +------------------------+--------------------+ |Scope (S) |Unchanged (U) | +------------------------+--------------------+ |Confidentiality (C) |High (H) | +------------------------+--------------------+ |Integrity (I) |High (H) | +------------------------+--------------------+ |Availability (A) |Low (L) | +------------------------+--------------------+ |Temporal Score (Overall)|6.3 | +------------------------+--------------------+ |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:L/ UI:R/S:U/C:H/I:H/A:L/E:P/RL:O/RC:C&version=3.1 3. CVE-2020-7333: Cross-site Scripting (XSS) +------------------------+--------------------+ |Base Score |4.8 | +------------------------+--------------------+ |Attack Vector (AV) |Network (N) | +------------------------+--------------------+ |Attack Complexity (AC) |Low (L) | +------------------------+--------------------+ |Privileges Required (PR)|High (H) | +------------------------+--------------------+ |User Interaction (UI) |Required (R) | +------------------------+--------------------+ |Scope (S) |Changed (C) | +------------------------+--------------------+ |Confidentiality (C) |Low (L) | +------------------------+--------------------+ |Integrity (I) |Low (L) | +------------------------+--------------------+ |Availability (A) |None (N) | +------------------------+--------------------+ |Temporal Score (Overall)|4.3 | +------------------------+--------------------+ |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:N/AC:L/PR:H/ UI:R/S:C/C:L/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. 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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). 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