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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0894 Advanced Threat Defense update fixes a privilege escalation vulnerability (CVE-2020-7254) (SB10311) 12 March 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: McAfee Advanced Threat Defense Publisher: McAfee Operating System: Network Appliance Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-7254 Original Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10311 - --------------------------BEGIN INCLUDED TEXT-------------------- McAfee Security Bulletin - Advanced Threat Defense update fixes a privilege escalation vulnerability (CVE-2020-7254) Security Bulletins ID : SB10311 Last Modified : 3/10/2020 Summary First Published: March 10, 2020 +---------------------------+-------------------------------------------------+ | |Improper Privilege Management (CWE-269) | |Impact of Vulnerability: |Permissions, Privileges, and Access Control | | |(CWE-264) | +---------------------------+-------------------------------------------------+ |CVE ID: |CVE-2020-7254 | +---------------------------+-------------------------------------------------+ |Severity Rating: |High | +---------------------------+-------------------------------------------------+ |CVSS v3 Base/Temporal |7.7 / 6.9 | |Scores: | | +---------------------------+-------------------------------------------------+ |Recommendations: |Update to Advanced Threat Defense (ATD) 4.8.2 | +---------------------------+-------------------------------------------------+ |Security Bulletin |None | |Replacement: | | +---------------------------+-------------------------------------------------+ |Affected Software: |ATD 4.x prior to 4.8.2 | +---------------------------+-------------------------------------------------+ |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 By default, there is no access to the command line for users and administrators. CVE-2020-7254 Privilege Escalation vulnerability in the command line interface in McAfee Advanced Threat Defense (ATD) 4.x prior to 4.8.2 allows local users to execute arbitrary code via improper access controls on the sudo command. http://web.nvd.nist.gov/view/vuln/detailvulnId=CVE-2020-7254 http://cve.mitre.org/cgi-bin/cvename.cginame=CVE-2020-7254 Remediation To remediate this issue, go to the Product Downloads site, and download the latest version. See the Frequently Asked Questions section for the path to upgrade from older versions to this version. +-------+-------+------+--------------+ |Product|Version|Type |Release Date | +-------+-------+------+--------------+ |ATD |4.8.2 |Update|March 10, 2020| +-------+-------+------+--------------+ 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, which you can download from the Documentation tab, for instructions on how to install these updates. Migration See the Migration Guide for instructions to get to a protected version. IMPORTANT: When upgrading to the appropriate ATD version with the fix, you must use the migration package. Failure to use the correct migration package causes installation failures and requires a reimage of the appliance. Acknowledgments McAfee credits Jerome Nokin from NCIA for responsibly reporting CVE-2020-7254. Frequently Asked Questions (FAQs) How do I know if my McAfee product is vulnerable or not For Appliances: Use the following instructions for Appliance-based products: 1. Open the Administrator's User Interface (UI). 2. Click the About link. The product version displays. Is ATD Update 4.8.2 deployable to all ATD appliance models ATD Update 4.8.2 is applicable to all ATD models - both physical and virtual. Will a fix for CVE-2020-7254 be available for ATD versions earlier than 4.8.2 Customers running ATD and virtual ATD versions 4.8.0 or earlier must upgrade to ATD Update 4.8.2 to obtain the fix for CVE-2020-7254. To remediate against all vulnerabilities listed in this Security Bulletin, it is recommended to upgrade to ATD 4.8.2 What are the steps needed to get to a protected version +----------------+-------------------------+----------------------------------+ | Starting | Total Number of Steps | | | Version | to Upgrade to Fixed | Upgrade Path | | | Version | | +----------------+-------------------------+----------------------------------+ | 3.6.2 | 5 | 3.6.2 > 3.8.0 > 4.2.0 > 4.4.0 > | | | | 4.8.0 | +----------------+-------------------------+----------------------------------+ | 3.8.x | 4 | 3.8.x > 4.2.0 > 4.4.0 > 4.8.0 | +----------------+-------------------------+----------------------------------+ | 4.0.x | 3 | 4.0.x > 4.4.0 > 4.8.0 | +----------------+-------------------------+----------------------------------+ | 4.2.x | 3 | 4.2.0 > 4.4.0 > 4.8.0 | +----------------+-------------------------+----------------------------------+ | 4.4.x | 2 | 4.4.x > 4.8.0 | +----------------+-------------------------+----------------------------------+ | 4.6.0 | 2 | 4.6.0 > 4.8.0 | +----------------+-------------------------+----------------------------------+ | 4.6.2 | 2 | 4.6.2 > 4.8.0 > 4.8.2 | +----------------+-------------------------+----------------------------------+ | 4.8.0 | 1 | 4.8.0 > 4.8.2 | +----------------+-------------------------+----------------------------------+ NOTES: o See Supported Upgrade Paths . o If you are running ATD version 3.8.x or earlier, McAfee strongly recommends a reimage of the ATD appliance directly to version 4.8.0 to minimize the number of upgrade steps and avoid potential upgrade failures. See Migration Criteria . o Installation could take a minimum of 30 minutes and up to two hours. The time depends on the number of virtual machines and the database size in the deployment. What are the migration packages recommended by version +---------+-------------------------------+------------------------------------------------------------------+ | Version | File name | SHA | +---------+-------------------------------+------------------------------------------------------------------+ | 3.8.0 | system-3.8.0.29.58939.msu | 3BC121C870AC49FEF57EF406E40055B8867B3150369F013E4395B5555A65FB3C | +---------+-------------------------------+------------------------------------------------------------------+ | 4.2.x | migration-4.2.0.20.64069.msu | 9CF6A0D7DC9CD8CD713F73FFAD3C81C12A1F3CFD0BF82713D79ABB069FEF1AEF | +---------+-------------------------------+------------------------------------------------------------------+ | 4.4.x | migration-4.4.0.26.a6835a.msu | 0FF4B2434FD24F13F3D23DBFC8C8E63F7F8B979991A2AC87F61B2362447CCF3B | +---------+-------------------------------+------------------------------------------------------------------+ | 4.6.0 | migration-4.6.0.21.517580.msu | E9AD833DCCC47626B7AB48B6440CABC1183709A7F0BFE54AD454DF2D993C99D5 | +---------+-------------------------------+------------------------------------------------------------------+ | 4.6.2 | system-4.6.2.13.8d1e42.msu | ED4A39A9E16237EF863F7E380799C49946DBACE0ABF1D96225723AB4775F7FAF | +---------+-------------------------------+------------------------------------------------------------------+ | 4.8.0 | migration-4.8.0.17.c4d13a.msu | 58AF249F1F248B826127ECC861EBE5D50E61501C27376AB5893FE5E5370620A5 | +---------+-------------------------------+------------------------------------------------------------------+ | 4.8.2 | system-4.8.2.13.cc86f4.msu | 2E95F1A25D7E5369A7DCA795A840B765D221C188 | +---------+-------------------------------+------------------------------------------------------------------+ 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: 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 CVE-2020-7254 - Privilege escalation in Advanced Threat Defense +------------------------+--------------------+ |Base Score |7.7 | +------------------------+--------------------+ |Attack Vector (AV) |Local (L) | +------------------------+--------------------+ |Attack Complexity (AC) |High (H) | +------------------------+--------------------+ |Privileges Required (PR)|Low (L) | +------------------------+--------------------+ |User Interaction (UI) |None (N) | +------------------------+--------------------+ |Scope (S) |Changed (C) | +------------------------+--------------------+ |Confidentiality (C) |Low (L) | +------------------------+--------------------+ |Integrity (I) |High (H) | +------------------------+--------------------+ |Availability (A) |High (H) | +------------------------+--------------------+ |Temporal Score (Overall)|6.9 | +------------------------+--------------------+ |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:H/PR:L/UI:N /S:C/C:L/I:H/A:H/E:P/RL:O/RC:C&version=3.1 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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). 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