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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3789.2 McAfee Security Bulletin - Endpoint Security for Windows update fixes three vulnerabilities (CVE-2019-3652, CVE-2019-3653, and CVE-2020-7251) 14 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: McAfee Endpoint Security for Windows Publisher: McAfee Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-7251 CVE-2019-3653 CVE-2019-3652 Original Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10299 Revision History: February 14 2020: Additional CVE added and product updates released. October 10 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- McAfee Security Bulletin - Endpoint Security for Windows update fixes three vulnerabilities (CVE-2019-3652, CVE-2019-3653, and CVE-2020-7251) Security Bulletins ID: SB10299 Last Modified: 2/13/2020 Summary First Published: October 8, 2019 +----------------------+------------------------------------------------------+ | Impact of |CVE-2019-3652 - Code Injection (CWE-94) | |Vulnerability: |CVE-2019-3653 - Improper Access Control (CWE-287) | | |CVE-2020-7251 - Improper Access Control (CWE-287) | +----------------------+------------------------------------------------------+ | |CVE-2019-3652 | | CVE ID: |CVE-2019-3653 | | |CVE-2020-7251 | +----------------------+------------------------------------------------------+ | |CVE-2019-3652: Medium | | Severity Rating: |CVE-2019-3653: Medium | | |CVE-2020-7251: Medium | +----------------------+------------------------------------------------------+ | CVSS v3 Base/Temporal|CVE-2019-3652: 5.0 / 4.3 | |Scores: |CVE-2019-3653: 5.0 / 4.3 | | |CVE-2020-7251: 5.0 / 4.3 | +----------------------+------------------------------------------------------+ | |Install or update to one of the following Endpoint | | |Security (ENS) versions: | | Recommendations: | | | | o ENS 10.7.0 February 2020 Update | | | o ENS 10.6.1 February 2020 Update | | | o ENS 10.5.5 October 2019 Update | +----------------------+------------------------------------------------------+ | Security Bulletin |Update to CVE-2019-3653 for ENS 10.6.1. | |Replacement: | | +----------------------+------------------------------------------------------+ | |ENS for Windows: | | | | | Affected Software: | o 10.7.x | | | o 10.6.x | | | o 10.5.x | +----------------------+------------------------------------------------------+ | 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 This Security Bulletin covers three vulnerabilities in ENS. To exploit these vulnerabilities, an attacker would need to gain access to the system. The initial fix for this issue in CVE-2019-3653 did not prevent an older version of the ESConfig Tool from modifying the configuration for later versions. CVE-2020-7251 addresses this issue for ENS 10.6.1 and 10.7.0. 1. CVE-2019-3652 - ENS code injection in EPSetup.exe Code Injection vulnerability in EPSetup.exe in McAfee Endpoint Security (ENS) prior to 10.6.1 October 2019 Update allows local user to get their malicious code installed by the ENS installer via code injection into EPSetup.exe by an attacker with access to the installer. https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-3652 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3652 2. CVE-2019-3653 - ESConfig Tool access not controlled Improper access control vulnerability in configuration tool in McAfee Endpoint Security (ENS) prior to 10.6.1 October 2019 Update allows local user to disable security features via unauthorized use of the configuration tool. https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-3653 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3653 3. CVE-2020-7251 - ESConfig Tool able to edit configuration for newer versions Improper access control vulnerability in configuration tool in McAfee Endpoint Security (ENS) prior to 10.6.1 February 2020 Update allows local user to disable security features via unauthorized use of the configuration tool from older versions of ENS. https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7251 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7251 Remediation To remediate these issues: o Customers using ENS 10.7.x should update to ENS 10.7.0 February 2020 Update. o Customers using ENS 10.6.x should either upgrade to ENS 10.7.0 February 2020 Update or update to ENS 10.6.1 February 2020 Update. o Customers using ENS 10.5.x should update to ENS 10.5.5 October 2019 update, or upgrade to ENS 10.6.1 October 2019 update. Go to the Product Downloads site, and download the applicable product update files: +--------------+------------------------+------+---------------+--------------+ |Product |Version |Type |Release Date |Restart | | | | | |Needed? | +--------------+------------------------+------+---------------+--------------+ |ENS for |10.7.0 February 2020 |Update|February 13, |No | |Windows |Update | |2020 | | +--------------+------------------------+------+---------------+--------------+ |ENS for |10.6.1 February 2020 |Update|February 13, |No | |Windows |Update | |2020 | | +--------------+------------------------+------+---------------+--------------+ |ENS for |10.5.5 October 2019 |Update|October 8, 2019|No | |Windows |Update | | | | +--------------+------------------------+------+---------------+--------------+ Download and Installation Instructions See KB56057 for instructions to download McAfee products, documentation, updates, and hotfixes. See the Release Notes and the Installation Guide, which you can download from the Documentation tab, for instructions to install these updates. Acknowledgments CVE-2019-3652: McAfee credits Russell Wells from DRS for reporting this flaw. CVE-2019-3653: McAfee credits Donny Maasland from Fox-IT for reporting this flaw. Frequently Asked Questions (FAQs) How do I know if my McAfee product is vulnerable? 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 taskbar. 2. Click 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, which customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website at: http://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-2019-3652 - ENS code injection in EPSetup.exe +------------------------+--------------------+ |Base Score |5.0 | +------------------------+--------------------+ |Attack Vector (AV) |Local (L) | +------------------------+--------------------+ |Attack Complexity (AC) |High (H) | +------------------------+--------------------+ |Privileges Required (PR)|Low (L) | +------------------------+--------------------+ |User Interaction (UI) |Required (R) | +------------------------+--------------------+ |Scope (S) |Changed (C) | +------------------------+--------------------+ |Confidentiality (C) |Low (L) | +------------------------+--------------------+ |Integrity (I) |Low (L) | +------------------------+--------------------+ |Availability (A) |Low (L) | +------------------------+--------------------+ |Temporal Score (Overall)|4.3 | +------------------------+--------------------+ |Exploitability (E) |Proof-of-Concept (P)| +------------------------+--------------------+ |Remediation Level (RL) |Official Fix (O) | +------------------------+--------------------+ |Report Confidence (RC) |Reasonable (R) | +------------------------+--------------------+ NOTE: The below CVSS version 3.0 vector was used to generate this score. https://nvd.nist.gov/cvss/v3-calculator?vector=AV:L/AC:H/PR:L/UI:R/S:C/C:L/ I:L/A:L/E:P/RL:O/RC:R 2. CVE-2019-3653 - ESConfig Tool access not controlled +------------------------+--------------------+ |Base Score |5.0 | +------------------------+--------------------+ |Attack Vector (AV) |Local (L) | +------------------------+--------------------+ |Attack Complexity (AC) |High (H) | +------------------------+--------------------+ |Privileges Required (PR)|Low (L) | +------------------------+--------------------+ |User Interaction (UI) |Required (R) | +------------------------+--------------------+ |Scope (S) |Unchanged (U) | +------------------------+--------------------+ |Confidentiality (C) |High (H) | +------------------------+--------------------+ |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 3.0 vector was used to generate this score. https://nvd.nist.gov/cvss/v3-calculator?vector=AV:L/AC:H/PR:L/UI:R/S:U/C:H/ I:L/A:N/E:P/RL:O/RC:C 3. CVE-2020-7251 - ESConfig Tool able to edit configuration for newer version +------------------------+--------------------+ |Base Score |5.0 | +------------------------+--------------------+ |Attack Vector (AV) |Local (L) | +------------------------+--------------------+ |Attack Complexity (AC) |High (H) | +------------------------+--------------------+ |Privileges Required (PR)|Low (L) | +------------------------+--------------------+ |User Interaction (UI) |Required (R) | +------------------------+--------------------+ |Scope (S) |Unchanged (U) | +------------------------+--------------------+ |Confidentiality (C) |High (H) | +------------------------+--------------------+ |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) |Reasonable (R) | +------------------------+--------------------+ 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:L/AC:H/PR:L/ UI:R/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 http:// www.mcafee.com/us/threat-center/product-security-bulletins.aspx > 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 http:// www.mcafee.com/us/threat-center/product-security-bulletins.aspx > Report a Security Vulnerability. How does McAfee respond to this and any other reported security flaws? McAfee's key priority is the security of our customers. If a vulnerability is found within any of McAfee software or services, we work closely with the relevant security software development team to make sure 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 http://www.mcafee.com/us/ threat-center/product-security-bulletins.aspx > 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. 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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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