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Security audit

佛历查询 - 即刻数据

Security checks for vulnerabilities and agentic risk

Overview

The skill performs the advertised Buddhist calendar lookup, but its script can send the configured API key to an environment-selected request destination that is not disclosed in the skill instructions.

Review before installing. Only use this skill with a Jike API key you are comfortable exposing to this integration, avoid passing keys on the command line, and ensure the runtime environment cannot set JIKE_API_BASE_URL to an untrusted host. The publisher should remove or strictly validate that override, avoid putting the key in URLs if the API supports another method, and narrow the trigger description to Buddhist calendar/date lookups.

A.I.G

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (1)

T09 · Insecure Skill Coding Practices

Error
Location
scripts/calendar_foto_query.py:23
Finding

API Credential Exposure Through a Configurable Request Destination

Content
View full analysis
Remediation
View remediation

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
  • Taint TrackingDirect Taint Flow, Variable-Mediated Taint Flow, Credential Exfiltration Chain
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
Findings (10)

Tainted flow: 'url' from os.environ.get (line 113, credential/environment) → urllib.request.urlopen (network output)

Critical
Category
Data Flow
Confidence
90% confidence
Finding

Credentials or environment variables flow to a network sink. This is a high-confidence indicator of credential exfiltration.

Content

Scanner excerpt · scripts/calendar_foto_query.py (reported line 115)May include surrounding context.

python
"""
    url = f"{API_BASE_URL}{API_PATH}?{urllib.parse.urlencode({'date': date_value, 'appkey': appkey})}"
    try:
        with urllib.request.urlopen(url, timeout=15) as response:
            return json.loads(response.read().decode("utf-8"))
    except urllib.error.HTTPError as exc:
        return {"code": exc.code, "message": f"接口请求失败: HTTP {exc.code}", "data": ""}

Tp4

High
Category
MCP Tool Poisoning
Confidence
92% confidence
Finding

整体上，代码与主要功能描述基本一致：它确实根据阳历日期查询佛历详细信息，并展示佛历日期、说明、节日、斋日、星宿和吉凶等内容，也确实使用即刻数据接口。读取 AppKey、参数解析、错误处理和 JSON 输出都属于实现细节，不构成越权或未声明能力。但声明中的“适用场景”包含“行情查询”，这是与实际代码行为明显不符的额外用途描述，因为代码没有任何行情类接口、字段或逻辑。因此应判定存在描述与行为不一致，但不属于恶意或隐蔽能力，属于声明范围中混入了不相关场景。

Content

No source excerpt is available for this finding.

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

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

Content

Scanner excerpt · scripts/calendar_foto_query.py (reported line 51)May include surrounding context.

python
env_value = os.environ.get(env_name, "").strip()
        if env_value:
            return env_value
    env_file = Path(__file__).parent / ".env"
    if not env_file.exists():
        return ""
    for line in env_file.read_text(encoding="utf-8").splitlines():

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
88% confidence
Finding

The skill declares environment, file-read, and network-capable behavior but does not specify any explicit tool scope such as permissions or allowed-tools. This weakens containment and reviewability, increasing the chance that an agent invokes the skill with broader capabilities than necessary, especially since it accesses an API key and performs outbound requests.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The trigger conditions are overly broad and ambiguous, which can cause the agent to invoke this skill in contexts beyond simple date lookup. Because the skill sends user-supplied query data to a third-party API, broad triggering increases the risk of unnecessary external transmission and accidental handling of unrelated user content.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The markdown instructs use of an external API but does not warn that user query data will be transmitted to a third-party service. This creates a privacy and consent problem: users and downstream agents may disclose dates or surrounding contextual data externally without clear notice or approval.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
78% confidence
Finding

The skill explicitly performs external network transmission to a third-party endpoint using an API key. In this skill's context, outbound access is expected, but it still carries security risk because user-supplied inputs and secrets are involved, and the request example places the appkey in the URL where it may be logged by intermediaries.

Content

Scanner excerpt · SKILL.md (reported line 30)May include surrounding context.

直接调用 API：

text
GET https://api.jikeapi.cn/v1/calendar/foto/detail?appkey=YOUR_APPKEY

AI 使用步骤

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% 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 · _meta.json (reported line 8)May include surrounding context.

json
"title": "佛历查询 - 即刻数据",
  "description": "输入阳历日期，查询佛历日期、完整说明、佛教节日、斋日、星宿和吉凶等信息。",
  "env": "JIKE_CALENDAR_FOTO_QUERY_KEY",
  "api_url": "https://api.jikeapi.cn/v1/calendar/foto/detail",
  "homepage": "https://www.jikeapi.cn/"
}

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The script places the AppKey in the query string, which can leak credentials through logs, browser/history-like tooling, reverse proxies, monitoring systems, and exception traces. Even when using HTTPS, URL query parameters are commonly captured by infrastructure components, increasing the chance of credential exposure.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

The title and description are presented exclusively in Chinese, which can imply a fixed language/locale experience without any stated opt-in or scope limitation. Under the policy rule, language constraints should either offer a user choice or clearly document that the skill is intended for a specific locale.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.