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+# SaltStack Information Disclosure Leads to Privilege Escalation (CVE-2020-11651)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+SaltStack is a Python-based client-server configuration management tool. A security team disclosed that SaltStack has an authentication bypass vulnerability (CVE-2020-11651) and a directory traversal vulnerability (CVE-2020-11652).
+
+In the CVE-2020-11651, attackers can bypass the Salt Master's validation logic by constructing malicious requests, call unauthorized function features, and consequently achieve remote command execution.
+
+References:
+
+- https://labs.f-secure.com/advisories/saltstack-authorization-bypass
+- https://github.com/rossengeorgiev/salt-security-backports
+- https://github.com/saltstack/salt/blob/a67d76b15615983d467ed81371b38b4a17e4f3b7/tests/integration/master/test_clear_funcs.py
+
+## Environment Setup
+
+Execute the following command to start a SaltStack Master service 2019.2.3:
+
+```
+docker compose up -d
+```
+
+After the server starts, the following ports will be listening:
+
+- 4505/4506: These are the ports for communication between SaltStack Master and minions
+- 8000: This is the Salt API port
+- 2222: This is the SSH server port inside the container
+
+## Vulnerability Reproduction
+
+This document demonstrates the reproduction of CVE-2020-11651 vulnerability.
+
+We can use the following request to execute the `ClearFuncs._prep_auth_info()` method in `salt/master.py`:
+
+```
+{'cmd': '_prep_auth_info'}
+```
+
+Using this method, we can obtain the keys of all users on the target. With these keys, we can execute backend functions with super administrator privileges, such as dispatching tasks.
+
+Using [this POC](https://github.com/dozernz/cve-2020-11651), first obtain the Key, then execute `touch /tmp/success` on the master:
+
+![](1.png)