Vulnerabilities > CVE-2019-3990 - Improper Privilege Management vulnerability in Linuxfoundation Harbor
Attack vector
NETWORK Attack complexity
LOW Privileges required
SINGLE Confidentiality impact
PARTIAL Integrity impact
NONE Availability impact
NONE Summary
A User Enumeration flaw exists in Harbor. The issue is present in the "/users" API endpoint. This endpoint is supposed to be restricted to administrators. This restriction is able to be bypassed and information can be obtained about registered users can be obtained via the "search" functionality.
Vulnerable Configurations
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 | Misc. |
| NASL id | VMWARE_HARBOR_1_9_3.NASL |
| description | The version of VMware Harbor installed on the remote host is 1.7.x or 1.8.x prior to 1.8.6 or 1.9.x prior to 1.9.3. It is, therefore, affected multiple vulnerabilities, including the following: - A privilege escalation vulnerability that allows an authenticated, normal user to gain administrative account privileges by making an API call to modify the email address of a specific user. An attacker can reset the password for that email address to gain access to the administrative account. This vulnerability exists because the affected Harbor API fails to enforce proper permissions and scope on the API request to modify an email address. (CVE-2019-19023) - A Cross-Site Request Forgery (CSRF) vulnerability caused by the Harbor web interface failing to implement protection mechanisms against CSRF. An unauthenticated, remote attacker can exploit this, by luring an authenticated user onto a prepared third-party website, in order to execute any action the platform in the context of the currently authenticated victim. (CVE-2019-19025) - An SQL injection (SQLi) vulnerability which a remote, authenticated user with Project-Admin capabilities can exploit by sending a specially crafted SQL payload in order to read secrets from the underlying database or conduct privilege escalation. (CVE-2019-19029) Note that Nessus has not tested for these issues but has instead relied only on the application |
| last seen | 2020-03-26 |
| modified | 2020-01-14 |
| plugin id | 132856 |
| published | 2020-01-14 |
| reporter | This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/132856 |
| title | VMware Harbor 1.7.x, 1.8.x < 1.8.6 / 1.9.x < 1.9.3 |
| code | |