Vulnerabilities > CVE-2019-12794 - Improper Privilege Management vulnerability in Misp 2.4.108
Attack vector
NETWORK Attack complexity
HIGH Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
An issue was discovered in MISP 2.4.108. Organization admins could reset credentials for site admins (organization admins have the inherent ability to reset passwords for all of their organization's users). This, however, could be abused in a situation where the host organization of an instance creates organization admins. An organization admin could set a password manually for the site admin or simply use the API key of the site admin to impersonate them. The potential for abuse only occurs when the host organization creates lower-privilege organization admins instead of the usual site admins. Also, only organization admins of the same organization as the site admin could abuse this.
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.