rule: SonicWall exploitation

2021-01-25 11:54:23 +01:00
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+title: SonicWall SSL/VPN Jarrewrite Exploit
+id: 6f55f047-112b-4101-ad32-43913f52db46
+status: experimental
+description: Detects exploitation attempts of the SonicWall Jarrewrite Exploit
+author: Florian Roth
+date: 2021/01/25
+tags:
+    - attack.t1190
+    - attack.initial_access
+references:
+    - https://darrenmartyn.ie/2021/01/24/visualdoor-sonicwall-ssl-vpn-exploit/
+logsource:
+    category: webserver
+detection:
+    selection:
+        c-uri|contains: '/cgi-bin/jarrewrite.sh'
+        c-useragent|contains: 
+            - ':;'
+            - '() {'
+            - '/bin/bash -c'
+    condition: selection
+fields:
+    - c-ip
+    - c-dns
+falsepositives:
+    - Unknown
+level: high