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Security audit

Huawei Cloud Bms List

Security checks for vulnerabilities and agentic risk

Overview

The server-listing code is narrowly scoped, but the installation guide asks you to run a downloaded script whose source could not be verified.

Use Huawei's official KooCLI installation instructions instead of the bundled download command until its source is verified. Grant only BMS read access, expose only intended Huawei credentials, and protect exported inventory reports.

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
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • Behavioral ASTexec() Call, eval() Call, Dynamic Import
  • Taint TrackingDirect Taint Flow, Variable-Mediated Taint Flow, Credential Exfiltration Chain
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (5)

Env Variable Harvesting

High
Category
Data Exfiltration
Confidence
70% confidence
Finding

Code enumerates, copies, or searches environment variables for secrets. Bulk environment access can collect credentials unrelated to the skill's stated purpose.

Content

Scanner excerpt · scripts/list_bms.py (reported line 437)May include surrounding context.

python
)

    def _env_credential(markers):
        for key, value in os.environ.items():
            upper = key.upper()
            if not upper.startswith(("HUAWEI", "HW_", "HWC")):
                continue

Env Variable Harvesting

High
Category
Data Exfiltration
Confidence
70% confidence
Finding

Code enumerates, copies, or searches environment variables for secrets. Bulk environment access can collect credentials unrelated to the skill's stated purpose.

Content

Scanner excerpt · tests/test_list_bms.py (reported line 422)May include surrounding context.

python
def _clean_credential_env(self):
        return {
            key: value for key, value in os.environ.items()
            if not key.upper().startswith(("HUAWEI", "HW_", "HWC"))
        }

subprocess module call

Medium
Category
Dangerous Code Execution
Confidence
70% confidence
Finding

subprocess module calls execute external commands. Without careful input validation, this enables command injection.

Content

Scanner excerpt · scripts/list_bms.py (reported line 299)May include surrounding context.

python
cmd.extend(extra)
    cmd.extend(argv)
    try:
        proc = subprocess.run(
            cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
            timeout=120, universal_newlines=True,
        )

Tainted flow: 'cmd' from os.environ.get (line 293, credential/environment) → subprocess.run (code execution)

Medium
Category
Data Flow
Confidence
65% confidence
Finding

Data from a source is assigned to a variable that is later passed to a sink, creating a variable-mediated taint flow.

Content

Scanner excerpt · scripts/list_bms.py (reported line 299)May include surrounding context.

python
cmd.extend(extra)
    cmd.extend(argv)
    try:
        proc = subprocess.run(
            cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
            timeout=120, universal_newlines=True,
        )

Acceptance criteria require Chinese-language status messages without a user language choice or documented locale justification.

Low
Category
Output Handling
Confidence
92% confidence
Finding

The empty-list and permission-error criteria prescribe specific Chinese messages as required output. No language opt-in or justification for a Chinese-only locale constraint is documented in this file.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.