Principle of least privilege for workflow tokens (#3360)

.github/workflows/build-frontends.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ master, release/** ]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/build-ilspy.yml

@@ -6,8 +6,13 @@ on:
   pull_request:
     branches: [ master, release/** ]
 
+permissions:
+  contents: read
+
 jobs:
   Build:
+    permissions:
+      packages: write  # for dotnet nuget push
     runs-on: windows-2022
     strategy:
       fail-fast: false

.github/workflows/codeql-analysis.yml

@@ -6,8 +6,15 @@ on:
   pull_request:
     branches: [ master, release/** ]
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
+    permissions:
+      actions: read  # for github/codeql-action/init to get workflow details
+      security-events: write  # for github/codeql-action/analyze to upload SARIF results
+      
     name: Analyze
     runs-on: ubuntu-latest
 

.github/workflows/generate-bom.yml

@@ -3,6 +3,9 @@ name: Generate BOM
 on:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
 

.github/workflows/lock.yml

@@ -4,8 +4,13 @@ on:
   schedule:
     - cron: '0 0 * * *'
 
+permissions:
+  contents: read
+
 jobs:
   lock:
+    permissions:
+      issues: write  # for dessant/lock-threads to lock issues
     runs-on: ubuntu-latest
     steps:
       - uses: dessant/lock-threads@v5.0.1