38 lines
1.2 KiB
YAML
38 lines
1.2 KiB
YAML
title: DNS RCE CVE-2020-1350
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author: Florian Roth
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date: 2020/07/15
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description: Detects exploitation of DNS RCE bug reported in CVE-2020-1350 by the
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detection of suspicious sub process
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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ParentImage: '*\System32\dns.exe'
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SELECTION_3:
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Image: '*\System32\werfault.exe'
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SELECTION_4:
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Image: '*\System32\conhost.exe'
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SELECTION_5:
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Image: '*\System32\dnscmd.exe'
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condition: (SELECTION_1 and SELECTION_2 and not ((SELECTION_3 or SELECTION_4
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or SELECTION_5)))
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falsepositives:
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- Unknown but benign sub processes of the Windows DNS service dns.exe
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id: b5281f31-f9cc-4d0d-95d0-45b91c45b487
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level: critical
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logsource:
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category: process_creation
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product: windows
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references:
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- https://research.checkpoint.com/2020/resolving-your-way-into-domain-admin-exploiting-a-17-year-old-bug-in-windows-dns-servers/
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- https://blog.menasec.net/2019/02/threat-hunting-24-microsoft-windows-dns.html
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status: experimental
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tags:
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- attack.initial_access
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- attack.t1190
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- attack.execution
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- attack.t1569.002
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yml_filename: win_exploit_cve_2020_1350.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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