It has been discovered that maliciously crafted minion IDs can cause unwanted directory traversals on the salt-master. The flaw is within the minion id validation which could allow certain minions to authenticate to a master despite not having the correct credentials. To exploit the vulnerability, an attacker must create a salt-minion with an ID containing path seperators that will cause a directory traversal.
|09 Oct 2017||ASA-201710-12||AVG-438||salt||Medium||multiple issues|
This is the complete fix to an earlier vulnerability where not all characters were correctly handled to prevent directory traversal. https://security.archlinux.org/CVE-2017-12791