1## autogenerated on 2025-03-28 15:36:18
2name: crowdsecurity/vpatch-CVE-2020-9054
3description: 'Detects pre-authentication command injection in Zyxel NAS devices via weblogin.cgi'
4rules:
5  - and:
6      - zones:
7          - URI
8        transform:
9          - lowercase
10        match:
11          type: contains
12          value: /cgi-bin/weblogin.cgi
13      - zones:
14          - ARGS
15        variables:
16          - username
17        transform:
18          - lowercase
19        match:
20          type: contains
21          value: "'"
22
23labels:
24  type: exploit
25  service: http
26  confidence: 3
27  spoofable: 0
28  behavior: 'http:exploit'
29  label: 'Zyxel NAS - RCE'
30  classification:
31    - cve.CVE-2020-9054
32    - attack.T1190
33    - cwe.CWE-78
34