{"id":26701651,"url":"https://github.com/compcode1/wireshark-nmap-email","last_synced_at":"2025-03-27T01:29:44.524Z","repository":{"id":283161059,"uuid":"950875412","full_name":"Compcode1/wireshark-nmap-email","owner":"Compcode1","description":"This project analyzes the transmission of emails between two devices on the same network:  ","archived":false,"fork":false,"pushed_at":"2025-03-18T20:51:31.000Z","size":28,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-03-18T21:34:03.245Z","etag":null,"topics":["email","nmap","wireshark"],"latest_commit_sha":null,"homepage":"","language":"Jupyter Notebook","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-3.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Compcode1.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2025-03-18T20:17:44.000Z","updated_at":"2025-03-18T20:52:47.000Z","dependencies_parsed_at":"2025-03-18T21:45:20.364Z","dependency_job_id":null,"html_url":"https://github.com/Compcode1/wireshark-nmap-email","commit_stats":null,"previous_names":["compcode1/wireshark-nmap-email"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Compcode1%2Fwireshark-nmap-email","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Compcode1%2Fwireshark-nmap-email/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Compcode1%2Fwireshark-nmap-email/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Compcode1%2Fwireshark-nmap-email/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Compcode1","download_url":"https://codeload.github.com/Compcode1/wireshark-nmap-email/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":245764320,"owners_count":20668387,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["email","nmap","wireshark"],"created_at":"2025-03-27T01:29:44.104Z","updated_at":"2025-03-27T01:29:44.518Z","avatar_url":"https://github.com/Compcode1.png","language":"Jupyter Notebook","readme":"This project analyzed **email transmission security using Nmap \u0026 Wireshark**, focusing on:\n- **DNS resolution of Gmail’s mail servers**\n- **TLS and QUIC encryption behavior**\n- **Nmap scanning of Gmail’s SMTP/IMAP/POP3 servers**\n- **IPv4 vs. IPv6 security settings**\n- **Network security misconfigurations and potential attack vectors**\n\n---\n\n## **1️⃣ Key Findings**\n### **🟢 DNS Resolution Analysis**\n- Gmail’s mail server (`smtp.gmail.com`) resolved via DNS queries.\n- The MacBook → Gmail resolution step was **not fully captured** due to network limitations.\n\n### **🟢 Email Encryption: TLS vs. QUIC**\n- Gmail’s web interface (browser-based) used **QUIC** encryption.\n- Gmail’s mail servers (SMTP/IMAP) used **TLS 1.0, 1.1, 1.2, and 1.3**.\n- **TLS 1.0 \u0026 1.1 remain enabled, despite security deprecations**.\n\n### **🟢 Nmap Scan of Gmail’s Mail Servers**\n- **IPv4 and IPv6 scans revealed identical encryption settings.**\n- **Legacy ciphers (3DES) were still present**, though unlikely used.\n- **IPv6 was prioritized in our network, leading to an initial oversight in scanning.**\n\n---\n\n## **2️⃣ Lessons Learned**\n✅ **Ensure Wireshark and Nmap scans are aligned to the correct IP version (IPv4 vs. IPv6).**  \n✅ **QUIC vs. TLS differences impact visibility in packet captures.**  \n✅ **Nmap confirms security policies that Wireshark cannot directly observe.**  \n✅ **Capturing MacBook traffic from the Dell was not straightforward and would require a different setup.**  \n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcompcode1%2Fwireshark-nmap-email","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcompcode1%2Fwireshark-nmap-email","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcompcode1%2Fwireshark-nmap-email/lists"}