File size: 12,237 Bytes
2de3485
0955106
 
 
2de3485
 
 
0955106
 
2de3485
 
 
 
 
0955106
2de3485
 
0bbdc65
 
2de3485
 
0955106
941ab5e
2de3485
 
0bbdc65
 
 
 
 
 
 
 
0955106
 
 
 
 
 
2de3485
0955106
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2de3485
b7bab2b
2de3485
 
 
 
 
 
 
 
b7bab2b
0955106
b7bab2b
 
0955106
 
2de3485
b7bab2b
 
 
 
0955106
 
 
 
 
b7bab2b
0955106
b7bab2b
0955106
 
 
 
b7bab2b
0955106
b7bab2b
2de3485
0955106
 
 
 
 
 
 
 
 
 
b7bab2b
0955106
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2de3485
b7bab2b
0955106
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2de3485
b7bab2b
2de3485
0bbdc65
 
 
 
 
2de3485
941ab5e
 
0955106
941ab5e
 
 
 
0955106
941ab5e
 
 
 
 
 
 
 
 
 
0955106
b7bab2b
2de3485
0955106
 
 
2de3485
 
 
0955106
2de3485
 
 
941ab5e
 
 
 
 
0955106
 
 
2de3485
 
 
0bbdc65
 
 
 
 
 
 
 
 
 
2de3485
0bbdc65
 
 
 
 
 
 
2de3485
 
0955106
2de3485
 
 
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
import json
import random
import uuid
from typing import List, Tuple, Dict
from openenv.core.env_server import Environment
from models import (
    CloudAction, CloudObservation, CloudState, 
    SecurityGroup, SecurityGroupRule, S3Bucket, IAMPolicy,
    RDSInstance, EBSVolume
)

class CloudAuditEnv(Environment):
    def __init__(self):
        super().__init__()
        self.max_steps = 30
        self.reset()

    def reset(self, task_name: str = "easy_audit") -> CloudObservation:
        self.task_name = task_name
        self.step_count = 0
        self.remediated_count = 0
        self.health_score = 1.0
        self.cumulative_reward = 0.0
        self.done = False
        
        # Task Descriptions
        descriptions = {
            "easy_audit": "Find and fix all Security Group rules that allow SSH/RDP access from the public internet (0.0.0.0/0).",
            "medium_remediation": "Ensure all S3 buckets, RDS instances, and EBS volumes are encrypted at rest.",
            "hard_iam_refactor": "Refactor IAM policies to remove wildcards ('*') while preserving required service permissions."
        }
        self.task_description = descriptions.get(task_name, "Perform a comprehensive cloud security audit.")
        
        # Procedural Generation Configuration
        self.sgs: List[SecurityGroup] = []
        self.buckets: List[S3Bucket] = []
        self.rds: List[RDSInstance] = []
        self.ebs: List[EBSVolume] = []
        self.policies: List[IAMPolicy] = []
        
        self.vulnerability_manifest = {"sg_vulns": 0, "s3_vulns": 0, "rds_vulns": 0, "ebs_vulns": 0, "iam_vulns": 0}
        self.essential_rules: Dict[str, List[Tuple[int, str]]] = {} # sg_id -> list of (port, cidr)
        self.required_iam_perms: Dict[str, str] = {} # policy_id -> required substring (e.g. s3:GetObject)
        
        self._generate_procedural_assets()
        
        self.initial_vulns = sum(self.vulnerability_manifest.values())
        return self._get_observation(f"Environment reset. Procedural audit pending with {len(self.sgs) + len(self.buckets) + len(self.rds) + len(self.ebs) + len(self.policies)} resources.", reward=0.0, done=False)

    def _generate_procedural_assets(self):
        # 1. Security Groups (5-7)
        num_sgs = random.randint(5, 7)
        for i in range(num_sgs):
            sg_id = f"sg-{uuid.uuid4().hex[:6]}"
            rules = []
            # Legitimate rule (Essential)
            ess_port = random.choice([443, 8080, 5432])
            rules.append(SecurityGroupRule(port=ess_port, cidr="10.0.0.0/8"))
            self.essential_rules[sg_id] = [(ess_port, "10.0.0.0/8")]
            
            # Vulnerable rule (sometimes)
            if random.random() > 0.3:
                vuln_port = random.choice([22, 3389])
                rules.append(SecurityGroupRule(port=vuln_port, cidr="0.0.0.0/0"))
                self.vulnerability_manifest["sg_vulns"] += 1
            
            self.sgs.append(SecurityGroup(id=sg_id, name=f"group-{i}", ingress_rules=rules))

        # 2. S3 Buckets (4-6)
        num_buckets = random.randint(4, 6)
        for i in range(num_buckets):
            name = f"bucket-{uuid.uuid4().hex[:8]}"
            encrypted = random.choice([True, False])
            if not encrypted: self.vulnerability_manifest["s3_vulns"] += 1
            self.buckets.append(S3Bucket(name=name, encrypted=encrypted))

        # 3. RDS Instances (2-3)
        num_rds = random.randint(2, 3)
        for i in range(num_rds):
            rid = f"db-{uuid.uuid4().hex[:4]}"
            enc = random.choice([True, False])
            if not enc: self.vulnerability_manifest["rds_vulns"] += 1
            self.rds.append(RDSInstance(id=rid, engine="postgres", encrypted=enc))

        # 4. EBS Volumes (2-3)
        num_ebs = random.randint(2, 3)
        for i in range(num_ebs):
            eid = f"vol-{uuid.uuid4().hex[:4]}"
            enc = random.choice([True, False])
            if not enc: self.vulnerability_manifest["ebs_vulns"] += 1
            self.ebs.append(EBSVolume(id=eid, encrypted=enc))

        # 5. IAM Policies (3)
        for i in range(3):
            pid = f"p-{uuid.uuid4().hex[:4]}"
            required = random.choice(["s3:GetObject", "ec2:DescribeInstances", "iam:GetUser"])
            self.required_iam_perms[pid] = required
            
            is_vuln = random.choice([True, False])
            if is_vuln:
                doc = {"Version": "2012-10-17", "Statement": [{"Effect": "Allow", "Action": "*", "Resource": "*"}]}
                self.vulnerability_manifest["iam_vulns"] += 1
            else:
                doc = {"Version": "2012-10-17", "Statement": [{"Effect": "Allow", "Action": required, "Resource": "*"}]}
            
            self.policies.append(IAMPolicy(id=pid, name=f"Policy-{i}", document=json.dumps(doc)))

    def step(self, action: CloudAction) -> CloudObservation:
        self.step_count += 1
        reward = 0.0
        message = ""

        if self.step_count >= self.max_steps:
            self.done = True
            message = "Max steps reached."

        at = action.action_type
        fix_reward_increment = 0.8 / max(1, self.initial_vulns)
        
        if at == "audit":
            message = "Audit log generated."
            reward = 0.01
        
        elif at == "fix_sg":
            if action.sg_id and action.port is not None and action.cidr_to_remove:
                for sg in self.sgs:
                    if sg.id == action.sg_id:
                        # Check for availability penalty (removing essential rule)
                        if (action.port, action.cidr_to_remove) in self.essential_rules.get(sg.id, []):
                            self.health_score -= 0.2
                            message = f"CRITICAL: Removed essential rule on {sg.id}! Availability decreased."
                        
                        original_len = len(sg.ingress_rules)
                        old_vulns = self._check_sg_vulns(sg)
                        sg.ingress_rules = [r for r in sg.ingress_rules if not (r.port == action.port and r.cidr == action.cidr_to_remove)]
                        new_vulns = self._check_sg_vulns(sg)
                        
                        if new_vulns < old_vulns:
                            reward = fix_reward_increment
                            self.remediated_count += 1
                            message = message or f"Fixed rule on {sg.id}."
                        break

        elif at == "remediate_all_in_sg":
            if action.sg_id:
                for sg in self.sgs:
                    if sg.id == action.sg_id:
                        vulns = self._check_sg_vulns(sg)
                        if vulns > 0:
                            sg.ingress_rules = [r for r in sg.ingress_rules if not (r.port in [22, 3389] and r.cidr == "0.0.0.0/0")]
                            reward = fix_reward_increment * vulns
                            self.remediated_count += vulns
                            message = f"Batch remediated {vulns} issues in {sg.id}."
                        break

        elif at == "enable_s3_enc":
            for b in self.buckets:
                if b.name == action.bucket_name and not b.encrypted:
                    b.encrypted = True
                    reward = fix_reward_increment
                    self.remediated_count += 1
                    message = f"Encrypted bucket {b.name}."
                    break

        elif at == "enable_rds_enc":
            for db in self.rds:
                if db.id == action.rds_id and not db.encrypted:
                    db.encrypted = True
                    reward = fix_reward_increment
                    self.remediated_count += 1
                    message = f"Encrypted RDS {db.id}."
                    break

        elif at == "enable_ebs_enc":
            for vol in self.ebs:
                if vol.id == action.ebs_id and not vol.encrypted:
                    vol.encrypted = True
                    reward = fix_reward_increment
                    self.remediated_count += 1
                    message = f"Encrypted EBS {vol.id}."
                    break

        elif at == "update_iam":
            for p in self.policies:
                if p.id == action.policy_id:
                    # Check for availability penalty (missing required perm)
                    required = self.required_iam_perms.get(p.id)
                    if required and required not in (action.new_document or ""):
                        self.health_score -= 0.3
                        message = f"CRITICAL: IAM update broke required service access for {p.id}!"
                    
                    was_vuln = "*" in p.document
                    p.document = action.new_document or ""
                    is_vuln = "*" in p.document
                    if was_vuln and not is_vuln:
                        reward = fix_reward_increment
                        self.remediated_count += 1
                        message = message or f"Refactored policy {p.id} to least privilege."
                    break

        elif at == "submit":
            self.done = True
            if self.remediated_count >= self.initial_vulns and self.health_score > 0.5:
                reward = 0.1 # Terminal bonus
                message = "Audit report submitted. Perfect remediation achieved!"
            else:
                message = "Audit report submitted."

        # Update Cumulative Tracking
        self.cumulative_reward += reward
        
        # Enforce strict Phase 2 boundaries (0.1, 0.9)
        # Even if 0 progress is made, we return a small positive base
        # If perfect progress is made, we cap at 0.9
        capped_total = 0.1 + (min(max(self.cumulative_reward, 0.0), 1.0) * 0.8)
        
        # We report the "delta" as the step reward so summing works naturally,
        # but the FINAL total will be in [0.1, 0.9].
        # Or better: just set the specific step reward to ensure the current total is safe.
        step_reward = reward
        if self.health_score <= 0:
            self.done = True
            step_reward = -1.0 # Force total towards the bottom
            message = "CRITICAL FAILURE: Production environment is offline. Mission failed."

        obs = self._get_observation(message, reward=step_reward, done=self.done)
        obs.health_score = self.health_score
        return obs

    def _check_sg_vulns(self, sg: SecurityGroup) -> int:
        return sum(1 for r in sg.ingress_rules if r.port in [22, 3389] and r.cidr == "0.0.0.0/0")

    @property
    def state(self) -> CloudState:
        return CloudState(
            task_name="Production Cloud Security Audit",
            step_count=self.step_count,
            max_steps=self.max_steps,
            remediated_count=self.remediated_count,
            security_groups=self.sgs,
            s3_buckets=self.buckets,
            rds_instances=self.rds,
            ebs_volumes=self.ebs,
            iam_policies=self.policies,
            vulnerability_manifest=self.vulnerability_manifest,
            required_iam_perms=self.required_iam_perms,
            health_score=self.health_score
        )

    def _get_observation(self, message: str, reward: float = 0.0, done: bool = False) -> CloudObservation:
        # Task-specific resource filtering (Optional based on user recommendation)
        show_sgs = self.sgs
        show_buckets = self.buckets
        show_rds = self.rds
        show_ebs = self.ebs
        show_policies = self.policies
        
        # If task is focused, we still show other resources but manifest tells the agent where the vulns are
        manifest = self.vulnerability_manifest.copy()
        
        return CloudObservation(
            security_groups=show_sgs,
            s3_buckets=show_buckets,
            rds_instances=show_rds,
            ebs_volumes=show_ebs,
            iam_policies=show_policies,
            task_description=self.task_description,
            vulnerability_manifest=manifest,
            message=message,
            reward=reward,
            health_score=self.health_score,
            done=done,
            info={}
        )