TerraMaster TOS CVE-2020-28188

Detects the exploitation of the TerraMaster TOS vulnerability described in CVE-2020-28188

Sigma rule (View on GitHub)

 1title: TerraMaster TOS CVE-2020-28188
 2id: 15c312b9-00d0-4feb-8870-7d940a4bdc5e
 3status: test
 4description: Detects the exploitation of the TerraMaster TOS vulnerability described in CVE-2020-28188
 5references:
 6    - https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/
 7    - https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/
 8author: Bhabesh Raj
 9date: 2021-01-25
10modified: 2023-01-02
11tags:
12    - attack.t1190
13    - attack.initial-access
14    - cve.2020-28188
15    - detection.emerging-threats
16logsource:
17    category: webserver
18detection:
19    base_url:
20        cs-method: 'GET'
21        cs-uri-query|contains|all:
22            - '/include/makecvs.php'
23            - '?Event='
24    payload:
25        cs-uri-query|contains:
26            - 'curl'
27            - 'wget'
28            - '.py'
29            - '.sh'
30            - 'chmod'
31            - '_GET'
32    condition: base_url and payload
33fields:
34    - c-ip
35    - c-dns
36falsepositives:
37    - Unknown
38level: high

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