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Pacu

Open Source

About Pacu

Pacu is an open-source framework designed specifically for offensive security testing within Amazon Web Services (AWS) environments. It enables security professionals, particularly penetration testers, to identify and exploit configuration vulnerabilities in AWS accounts. By leveraging modular functionality, Pacu supports a wide range of attack simulations such as privilege escalation, IAM user backdooring, and exploitation of vulnerable Lambda functions. This makes it a valuable tool for organizations aiming to assess and strengthen their cloud security posture.

The framework is maintained by Rhino Security Labs and is intended for enterprise security teams and consultants focused on cloud security posture management. Its lightweight design requires only Python 3.7+ and pip for installation, with options for Docker deployment to facilitate integration into existing security workflows. Pacu’s extensible module system allows users to expand its capabilities, ensuring adaptability to evolving cloud security challenges. As an open-source tool, it provides transparency and flexibility for organizations committed to rigorous cloud security assessments.

How to evaluate Cloud Security & CSPM

CIOPages Research Team evaluation framework for this category — not an assessment of Pacu. From our Cloud Security Posture Management (CSPM) buyer guide.

25%
Risk Prioritization & Attack-Path Analysis
Context graph that correlates misconfiguration, internet reachability, identity/permissions, vulnerabilities, secrets, and data sensitivity into ranked attack paths to crown-jewel assets; toxic-combination detection; quality of the “fix these 10” output versus raw finding volume; false-positive rate in your own accounts
20%
Coverage Model: Agentless Breadth vs. Runtime Depth
Agentless snapshot/API scanning for fast 100%-estate visibility versus agent/eBPF runtime for in-production threat detection (CDR); container, serverless, and Kubernetes (KSPM) coverage; how the two models combine without double-counting; performance impact and deployment friction
20%
Multi-Cloud & Platform Consolidation (CNAPP)
Depth and parity across AWS, Azure, GCP, OCI, and Kubernetes from one console; how many of CSPM, CIEM, CWPP, DSPM, KSPM, and code/IaC security are genuinely unified on one data model versus bolted-on acquisitions; single policy and one risk score across domains
15%
Identity & Entitlements (CIEM)
Effective-permission analysis across human and machine identities, cross-account and federated role mapping, detection of unused and over-privileged entitlements, least-privilege right-sizing recommendations, and privilege escalation / lateral-movement path discovery
10%
Remediation, Automation & Developer Workflow
Guided and auto-remediation, IaC and pull-request fixes (shift-left to code), guardrails that prevent drift, ticketing/SOAR integration, ownership routing to the right team, and API/Terraform coverage for security-as-code
10%
Compliance, Reporting & SOC Integration
Out-of-the-box frameworks (CIS, PCI DSS, HIPAA, SOC 2, FedRAMP, NIST) with custom policy authoring, audit-ready evidence and drift history, RBAC/SSO on the console, and clean export of correlated cloud risk into the SIEM/SOC rather than a siloed dashboard

Related Buyer Guides

Independent evaluation frameworks for this category.

API Security Platforms
The API is now the primary attack surface, and a WAF pointed at it isn't API security. Evaluate Salt, Akamai (Noname), Imperva, F5, Traceable, Wallarm, Cequence, and Data Theorem on whether they actually discover your shadow APIs and catch BOLA and business-logic abuse at runtime — not just sign endpoints off as “protected.”
Attack Surface Management (ASM / CTEM)
Evaluate Wiz, CrowdStrike Falcon Surface, Microsoft Defender EASM, Cortex Xpanse, Censys, CyCognito, Tenable, and runZero across EASM, CAASM, and platform-embedded camps — judged on discovery accuracy and how cleanly the surface feeds prioritization, not how many assets it claims to find.
Cloud Access Security Broker (CASB)
Evaluate Netskope, Microsoft Defender for Cloud Apps, Zscaler, and Palo Alto for SaaS security, shadow IT discovery, and data protection.

This profile was compiled by CIOPages from public sources with AI assistance, and may be incomplete or out of date. It is informational only and not an endorsement. Represent this vendor? Claim this listing or .

Quick Facts

github.com/RhinoSecurityLabs/pacu
CategoryCybersecurity
SubcategoryCloud Security & CSPM
PricingOpen Source
DeploymentOpen Source
Target SizeEnterprise