Implement security improvements and workflow updates

Added SECURITY.md with details for vulnerability reporting and encryption. Introduced new workflows for dependency review, Scorecard supply-chain security, and CodeQL analysis. Made amendments to docker-publish.yml for better Docker build and publishing process. These enhancements are aimed towards improving the security stance and the efficiency of CI/CD workflows.

.github/workflows/codeql.yml

@@ -0,0 +1,92 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  schedule:
+    - cron: '24 6 * * 3'
+
+permissions:
+  contents: read
+
+jobs:
+  analyze:
+    name: Analyze
+    # Runner size impacts CodeQL analysis time. To learn more, please see:
+    #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+    #   - https://gh.io/supported-runners-and-hardware-resources
+    #   - https://gh.io/using-larger-runners
+    # Consider using larger runners for possible analysis time improvements.
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    timeout-minutes: ${{ (matrix.language == 'swift' && 120) || 360 }}
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go', 'javascript-typescript' ]
+        # CodeQL supports [ 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'swift' ]
+        # Use only 'java-kotlin' to analyze code written in Java, Kotlin or both
+        # Use only 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Harden Runner
+      uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+      with:
+        egress-policy: audit
+
+    - name: Checkout repository
+      uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@05963f47d870e2cb19a537396c1f668a348c7d8f # v3.24.8
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+
+    # Autobuild attempts to build any compiled languages (C/C++, C#, Go, Java, or Swift).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@05963f47d870e2cb19a537396c1f668a348c7d8f # v3.24.8
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #     echo "Run, Build Application using script"
+    #     ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@05963f47d870e2cb19a537396c1f668a348c7d8f # v3.24.8
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/dependency-review.yml

@@ -0,0 +1,27 @@
+# Dependency Review Action
+#
+# This Action will scan dependency manifest files that change as part of a Pull Request,
+# surfacing known-vulnerable versions of the packages declared or updated in the PR.
+# Once installed, if the workflow run is marked as required,
+# PRs introducing known-vulnerable packages will be blocked from merging.
+#
+# Source repository: https://github.com/actions/dependency-review-action
+name: 'Dependency Review'
+on: [pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  dependency-review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
+      - name: 'Checkout Repository'
+        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
+      - name: 'Dependency Review'
+        uses: actions/dependency-review-action@0fa40c3c10055986a88de3baa0d6ec17c5a894b3 # v4.2.3

.github/workflows/docker-publish.yml

@@ -1,8 +1,4 @@
-# SPDX-FileCopyrightText: 2023 Winni Neessen <wn@neessen.dev>
+name: Docker build and publish
-#
-# SPDX-License-Identifier: MIT
-
-name: Publish docker image
 
 # This workflow uses actions that are not certified by GitHub.
 # They are provided by a third-party and are governed by
@@ -11,7 +7,7 @@ name: Publish docker image
 
 on:
   schedule:
-    - cron: '26 12 * * *'
+    - cron: '32 18 * * *'
   push:
     branches: [ "main" ]
     # Publish semver tags as releases.
@@ -26,6 +22,9 @@ env:
   IMAGE_NAME: ${{ github.repository }}
 
 
+permissions:
+  contents: read
+
 jobs:
   build:
 
@@ -38,28 +37,31 @@ jobs:
       id-token: write
 
     steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
 
       # Install the cosign tool except on PR
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
+        uses: sigstore/cosign-installer@e1523de7571e31dbe865fd2e80c5c7c23ae71eb4 #v3.4.0
-        with:
-          cosign-release: 'v2.1.1'
 
       # Set up BuildKit Docker container builder to be able to build
       # multi-platform images and export cache
       # https://github.com/docker/setup-buildx-action
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+        uses: docker/setup-buildx-action@2b51285047da1547ffb1b2203d8be4c0af6b1f20 # v3.2.0
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.1.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -69,7 +71,7 @@ jobs:
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
@@ -77,7 +79,7 @@ jobs:
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
+        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}

.github/workflows/scorecards.yml

@@ -0,0 +1,81 @@
+# SPDX-FileCopyrightText: 2022 Winni Neessen <winni@neessen.dev>
+#
+# SPDX-License-Identifier: CC0-1.0
+
+# This workflow uses actions that are not certified by GitHub. They are provided
+# by a third-party and are governed by separate terms of service, privacy
+# policy, and support documentation.
+
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '34 15 * * 4'
+  push:
+    branches: [ "main" ]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      # Uncomment the permissions below if installing in a private repository.
+      # contents: read
+      # actions: read
+
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
+      - name: "Checkout code"
+        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # v2.3.1
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecard on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
+          # repo_token: ${{ secrets.SCORECARD_TOKEN }}
+
+          # Public repositories:
+          #   - Publish results to OpenSSF REST API for easy access by consumers
+          #   - Allows the repository to include the Scorecard badge.
+          #   - See https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories:
+          #   - `publish_results` will always be set to `false`, regardless
+          #     of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@5d5d22a31266ced268874388b861e4b58bb5c2f3 # v4.3.1
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard.
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@05963f47d870e2cb19a537396c1f668a348c7d8f # v3.24.8
+        with:
+          sarif_file: results.sarif

SECURITY.md

@@ -0,0 +1,38 @@
+<!--
+SPDX-FileCopyrightText: 2021-2024 Winni Neessen <wn@neessen.dev>
+
+SPDX-License-Identifier: CC0-1.0
+-->
+
+# Security Policy
+
+## Reporting a Vulnerability
+
+To report (possible) security issues in js-mailer, please either send a mail to 
+[security@neessen.dev](mailto:security@neessen.dev) or use Github's 
+[private reporting feature](https://github.com/wneessen/js-mailer/security/advisories/new).
+Reports are always welcome. Even if you are not 100% certain that a specific issue you found
+counts as a security issue, we'd love to hear the details, so we can figure out together if
+the issue in question needds to be addressed.
+
+Typically, you will receive an answer within a day or even within a few hours.
+
+## Encryption
+You can send OpenPGP/GPG encrpyted mails to the [security@neessen.dev](mailto:security@neessen.dev) address.
+
+OpenPGP/GPG public key:
+```
+-----BEGIN PGP PUBLIC KEY BLOCK-----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+=nm5C
+-----END PGP PUBLIC KEY BLOCK-----
+```