Vulnerabilities > CVE-2020-7257 - Improper Privilege Management vulnerability in Mcafee Endpoint Security
Attack vector
LOCAL Attack complexity
HIGH Privileges required
LOW Confidentiality impact
NONE Integrity impact
HIGH Availability impact
HIGH Summary
Privilege escalation vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows local users to cause the deletion and creation of files they would not normally have permission to through altering the target of symbolic links whilst an anti-virus scan was in progress. This is timing dependent.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 7 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Restful Privilege Elevation Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
Nessus
| NASL family | Windows |
| NASL id | MCAFEE_ENS_SB10309.NASL |
| description | The version of the McAfee Endpoint Security (ENS) for Windows installed on the remote Windows host is 10.5.x prior to 10.5.5 Security Hotfix 129256, 10.6.x prior to 10.6.1 April 2020 Update, or 10.7.x prior to 10.7.0 April 2020 Update. It is, therefore, affected by multiple vulnerabilities: - A Symbolic link manipulation vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows authenticated local user to potentially gain an escalation of privileges by pointing the link to files which the user would not normally have permission to alter via carefully creating symbolic links from the ENS log file directory. (CVE-2020-7250) - A privilege escalation vulnerability in the administrative user interface in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows local users to gain elevated privileges due to a configuration error.Privilege escalation vulnerability in the administrative user interface in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows local users to gain elevated privileges via a configuration error. (CVE-2020-7255) - A privilege escalation vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows local users to cause the deletion and creation of files they would not normally have permission to through altering the target of symbolic links whilst an anti-virus scan was in progress. This is timing dependent. (CVE-2020-7257) It is also affected by additional vulnerabilities; see the vendor advisory for more information |
| last seen | 2020-05-16 |
| modified | 2020-04-24 |
| plugin id | 135972 |
| published | 2020-04-24 |
| reporter | This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/135972 |
| title | McAfee Endpoint Security for Windows 10.5.x < 10.5.5 Security Hotfix 129256 / 10.6.x < 10.6.1 April 2020 Update / 10.7.x < 10.7.0 April 2020 Update Multiple Vulnerabilities (SB10309) |