Vulnerability identifier: #VU27494
Vulnerability risk: Critical
Exploitation vector: Network
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the salt-master process "ClearFuncs" class does not properly validate method calls. A remote non-authenticated attacker can bypass authentication process and gain access some methods without authentication. These methods can be used to retrieve user tokens from the salt master and/or run arbitrary commands on salt minion as root.
Note: this vulnerability is being actively exploited in the wild.
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Vulnerable software versions
Salt: 2019.2 - 2019.2.3, 3000 - 3000.1
Fixed software versions
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?