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Security audit

Perpetua

Security checks for vulnerabilities and agentic risk

Overview

This is a disclosed Perpetua.sh OAuth proxy helper for Oura and Google Calendar, with sensitive-data privacy considerations but no hidden or destructive behavior in the artifact.

Install only if you intend to use Perpetua.sh as a third-party proxy for Oura and Google Calendar. Treat Oura and calendar data as sensitive, review the OAuth scopes when connecting accounts, and store `PERPETUA_API_KEY` in a secret manager or protected environment file.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (4)

Missing User Warnings

High
Category
Not specified by scanner
Confidence
95% confidence
Finding

This skill handles highly sensitive personal health and calendar data and routes it to a third-party hosted API, but it does not warn the user that their data will be transmitted externally. That omission undermines informed consent and can cause privacy-impacting disclosures, especially because Oura and calendar data can reveal health patterns, routines, and presence information.

Content

No source excerpt is available for this finding.

Credential Access

High
Category
Privilege Escalation
Confidence
70% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · SKILL.md (reported line 44)May include surrounding context.

Load secrets with:

bash
op run --env-file="$HOME/.openclaw/secrets.env" -- <command>

Credentials

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The trigger calendar is a common everyday term and is not limited to a specific action, provider, or context. This makes the skill likely to activate for many general calendar-related conversations beyond the intended Google Calendar/OAuth proxy use case.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 114)May include surrounding context.

bash
# Start OAuth flow for provider
curl -s -X POST "https://www.perpetua.sh/api/auth/connect/:provider/start" \
  -H "Authorization: Bearer $PERPETUA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"account":"default"}' | jq .authUrl

Static analysis

No suspicious patterns detected.