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Nuclei Templates

STARTTLS Mail Server Detection

ID: starttls-mail-detect

Severity: info

Author: r3dg33k,userdehghani

Tags: mail,starttls,network,detect,smtp,detection,tcp

Description

Section titled “Description”

STARTTLS is an email protocol command that tells an email server that an email client, including an email client running in a web browser, wants to turn an existing insecure connection into a secure one.

YAML Source

Section titled “YAML Source”
id: starttls-mail-detect


info:
  name: STARTTLS Mail Server Detection
  author: r3dg33k,userdehghani
  severity: info
  description: |
    STARTTLS is an email protocol command that tells an email server that an email client, including an email client running in a web browser, wants to turn an existing insecure connection into a secure one.
  metadata:
    max-request: 1
  tags: mail,starttls,network,detect,smtp,detection,tcp


tcp:
  - inputs:
      - data: "65686c6f20636865636b746c730a"
        type: hex
    read-size: 2048


    host:
      - "{{Hostname}}"
    port: 25,2525,465,587


    matchers:
      - type: word
        words:
          - "250-STARTTLS"
# digest: 4a0a00473045022100c401a8ec59ac73158cba6e06dd58843d53796dbf867c728609f2686decbd8d5402202db66f68732ec1f1d8da0ed63b6c951971fb0f3d2762542452f58e15c5a91eb9:922c64590222798bb761d5b6d8e72950

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 "network/detection/starttls-mail-detect.yaml"

View on Github