From ceb6cbcaa5c3be1272ae78266ba51700d917fca8 Mon Sep 17 00:00:00 2001 From: Translator Date: Thu, 12 Feb 2026 19:47:27 +0000 Subject: [PATCH] Translated ['src/pentesting-cloud/aws-security/aws-privilege-escalation/ --- .../aws-bedrock-privesc/README.md | 113 ++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 src/pentesting-cloud/aws-security/aws-privilege-escalation/aws-bedrock-privesc/README.md diff --git a/src/pentesting-cloud/aws-security/aws-privilege-escalation/aws-bedrock-privesc/README.md b/src/pentesting-cloud/aws-security/aws-privilege-escalation/aws-bedrock-privesc/README.md new file mode 100644 index 000000000..c98e7f993 --- /dev/null +++ b/src/pentesting-cloud/aws-security/aws-privilege-escalation/aws-bedrock-privesc/README.md @@ -0,0 +1,113 @@ +# AWS - Bedrock PrivEsc + +{{#include ../../../../banners/hacktricks-training.md}} + +## Amazon Bedrock AgentCore + +### `bedrock-agentcore:StartCodeInterpreterSession` + `bedrock-agentcore:InvokeCodeInterpreter` - Code Interpreter Execution-Role Pivot + +AgentCore Code Interpreter je upravljano izvršno okruženje. **Custom Code Interpreters** se mogu konfigurisati sa **`executionRoleArn`** koji „obezbeđuje dozvole za Code Interpreter da pristupi AWS services“. + +Ako **lower-privileged IAM principal** može **start + invoke** Code Interpreter sesiju koja je konfigurisana sa **more privileged execution role**, pozivalac može efektivno **pivot into the execution role’s permissions** (lateral movement / privilege escalation u zavisnosti od opsega role). + +> [!NOTE] +> Ovo je tipično pitanje **misconfiguration / excessive permissions** (dodeljivanje širokih dozvola interpreter execution role i/ili dodeljivanje širokog invoke pristupa). +> AWS izričito upozorava da se izbegne privilege escalation tako što će execution roles imati **jednake ili manje** privilegije od identiteta kojima je dozvoljeno invoke. + +#### Preduslovi (common misconfiguration) + +- Postoji **custom code interpreter** sa preterano privilegovanim **execution role** (npr: pristup osetljivim S3/Secrets/SSM ili IAM-admin-like sposobnostima). +- Korisnik (developer/auditor/CI identity) ima dozvole za: +- pokretanje sesija: `bedrock-agentcore:StartCodeInterpreterSession` +- pozivanje alata: `bedrock-agentcore:InvokeCodeInterpreter` +- (Opcionalno) Korisnik takođe može kreirati interpretere: `bedrock-agentcore:CreateCodeInterpreter` (omogućava im da kreiraju novog interpreter-a konfigurisanu sa execution role, u zavisnosti od org guardrails). + +#### Recon (identify custom interpreters and execution role usage) + +Lista interpretera (control-plane) i pregled njihove konfiguracije: +```bash +aws bedrock-agentcore-control list-code-interpreters +aws bedrock-agentcore-control get-code-interpreter --code-interpreter-id +```` +> The create-code-interpreter command podržava `--execution-role-arn` koji definiše koje AWS dozvole će interpreter imati. + +#### Korak 1 - Pokrenite sesiju (ovo vraća `sessionId`, ne interactive shell) +```bash +SESSION_ID=$( +aws bedrock-agentcore start-code-interpreter-session \ +--code-interpreter-identifier \ +--name "arte-oussama" \ +--query sessionId \ +--output text +) + +echo "SessionId: $SESSION_ID" +``` +#### Korak 2 - Pokretanje izvršavanja koda (Boto3 ili signed HTTPS) + +Ne postoji **interaktivni python shell** iz `start-code-interpreter-session`. Izvršavanje se dešava putem **InvokeCodeInterpreter**. + +**Opcija A - Boto3 primer (izvršavanje Python koda + provera identiteta):** +```python +import boto3 + +client = boto3.client("bedrock-agentcore", region_name="") + +# Execute python inside the Code Interpreter session +resp = client.invoke_code_interpreter( +codeInterpreterIdentifier="", +sessionId="", +name="executeCode", +arguments={ +"language": "python", +"code": "import boto3; print(boto3.client('sts').get_caller_identity())" +} +) + +# Response is streamed; print events for visibility +for event in resp.get("stream", []): +print(event) +``` +Ako je interpreter podešen sa execution role, izlaz `sts:GetCallerIdentity()` treba da odražava identitet te role (not the low-priv caller), demonstrirajući pivot. + +**Opcija B - Potpisani HTTPS poziv (awscurl):** +```bash +awscurl -X POST \ +"https://bedrock-agentcore..amazonaws.com/code-interpreters//tools/invoke" \ +-H "Content-Type: application/json" \ +-H "Accept: application/json" \ +-H "x-amzn-code-interpreter-session-id: " \ +--service bedrock-agentcore \ +--region \ +-d '{ +"name": "executeCode", +"arguments": { +"language": "python", +"code": "print(\"Hello from AgentCore\")" +} +}' +``` +#### Uticaj + +* **Lateral movement** na bilo koji AWS pristup koji interpreter execution role ima. +* **Privilege escalation** ako interpreter execution role ima više privilegija od pozivaoca. +* Teže otkrivanje ako CloudTrail data events za interpreter invocations nisu omogućeni (invocations možda neće biti registrovane podrazumevano, zavisno od konfiguracije). + +#### Ublažavanje / Ojačavanje + +* **Least privilege** na interpreter `executionRoleArn` (postupajte sa njim kao sa Lambda execution roles / CI roles). +* **Restrict who can invoke** (`bedrock-agentcore:InvokeCodeInterpreter`) i ko može da započne sesije. +* Koristite **SCPs** da odbijete InvokeCodeInterpreter osim za odobrene agent runtime roles (može biti neophodno sprovođenje na nivou organizacije). +* Omogućite odgovarajuće **CloudTrail data events** za AgentCore gde je primenljivo; postavite upozorenja na neočekivane invocations i kreiranje sesija. + +## Referencije + +- [Sonrai: AWS AgentCore privilege escalation path (SCP mitigation)](https://sonraisecurity.com/blog/aws-agentcore-privilege-escalation-bedrock-scp-fix/) +- [Sonrai: Credential exfiltration paths in AWS code interpreters (MMDS)](https://sonraisecurity.com/blog/sandboxed-to-compromised-new-research-exposes-credential-exfiltration-paths-in-aws-code-interpreters/) +- [AWS CLI: create-code-interpreter (`--execution-role-arn`)](https://docs.aws.amazon.com/cli/latest/reference/bedrock-agentcore-control/create-code-interpreter.html) +- [AWS CLI: start-code-interpreter-session (returns `sessionId`)](https://docs.aws.amazon.com/cli/latest/reference/bedrock-agentcore/start-code-interpreter-session.html) +- [AWS Dev Guide: Code Interpreter API reference examples (Boto3 + awscurl invoke)](https://docs.aws.amazon.com/bedrock-agentcore/latest/devguide/code-interpreter-api-reference-examples.html) +- [AWS Dev Guide: Security credentials management (MMDS + privilege escalation warning)](https://docs.aws.amazon.com/bedrock-agentcore/latest/devguide/security-credentials-management.html) + + +{{#include ../../../../banners/hacktricks-training.md}}