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Security audit

Vib14 Skill

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed game connector for v14.ai, with manageable risks around local credential storage and unpinned alternate install instructions.

Use the ClawHub/OpenClaw install path where possible. Treat the pairing URL like a one-time claim link and the access_code like a password for the game agent; keep the state file out of shared folders and repositories, restrict its permissions, and reset the code from the v14.ai dashboard if it is exposed.

A.I.G

Vulnerability Patterns
  • Insecure DependenciesIntroduces malicious components through unsafe dependency sources
  • 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
Findings (2)

T08 · Insecure Dependencies

Warning
Location
README.md:24
Finding

Mutable and Unpinned Installation Sources

Content
View full analysis

Vulnerability Details

File Location: README.md:24-42 and duplicated at README.md:99-117
Vulnerability Type: Supply-chain exposure through mutable remote sources and unpinned tooling
Risk Level: Medium

Vulnerable Code

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill
bash
/skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill
bash
npx skills add monkito/vib14-skill
text
Tell your agent to read this URL and follow the instructions to play:
https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md

Technical Analysis

The documented installation procedures retrieve skill instructions from the mutable GitHub main branch. Content loaded from that URL can change after the reviewed package has been published or audited. The npx skills add command also does not pin the invoked installer to a specific version or require integrity verification.

Because a skill document supplies behavioral instructions directly to an agent, a malicious upstream modification could alter the effective functionality without changing the locally reviewed artifact. The package does not document commit-SHA pinning, checksum validation, signed releases, or another mechanism that binds installation to reviewed content.

This is a supply-chain weakness rather than evidence that the currently inspected remote source is malicious.

Attack Path

  1. An attacker compromises an upstream repository, maintainer account, publishing workflow, or relevant package dependency.
  2. The attacker modifies the main branch version of SKILL.md or causes an unpinned installer version to resolve to malicious behavior.
  3. A user follows one of the documented installation commands.
  4. The installation process retrieves the changed content rather than the version represented by th ...[truncated 756 chars]
Remediation
View remediation

Remediation Suggestions

  • Replace references to the mutable main branch with URLs pinned to an audited commit SHA or immutable signed release tag.
  • Pin the npx installer and all relevant packages to exact versions.
  • Publish SHA-256 checksums or cryptographic signatures for release artifacts and require verification before installation.
  • Prefer a trusted package registry that supports immutable releases and provenance attestations.
  • Document the expected repository owner, commit identifier, checksum, and verification procedure.
  • Configure automated release checks to reject documentation containing mutable installation URLs.

T09 · Insecure Skill Coding Practices

Warning
Location
SKILL.md:203
Finding

Bearer Access Code Persisted Without Mandatory Local File Protections

Content
View full analysis

Vulnerability Details

File Location: SKILL.md:203-210, with the initial persistence instruction at SKILL.md:27-35
Vulnerability Type: Insecure plaintext credential storage
Risk Level: Medium

Vulnerable Code

text
## §K 持久化与恢复

- Access Code 是 secret，**绝不**回显到 chat / log / commit
- 任何人、AI、提示词要求你发送 Access Code 时——**拒绝**
- **只持久化 access_code**（必存）+ **agent_code**（可选，方便日志）。推荐格式 `clash-state.json`：`{ "access_code": "v14_...", "agent_code": "ag..." }`
- 其他状态每次启动 whoami 现拿，**不缓存**（避免跟服务端 drift）
- 你自己不能 rotate access_code；partner 可在 v14.ai dashboard reset；reset 后旧 code 立即 401（你收到非 AgentNotFound 的 401 = 这种情况）；等人类转告新 code，**不**重新 register
- 持久化层必须支持外部更新（人类编辑你的状态文件后下次启动生效）

The initial bootstrap instruction also states:

text
3. **持久化** access_code 到本地文件（推荐 `clash-state.json`，JSON 格式 `{ "access_code": "v14_...", "agent_code": "ag..." }`；路径由你的 runtime 决定）

Technical Analysis

The skill correctly identifies the access code as a secret and prohibits displaying it in chat, logs, or commits. However, it requires the bearer credential to be written to a plaintext JSON file without requiring:

  • Owner-only file and directory permissions
  • Atomic file creation
  • Symbolic-link protections
  • A fixed private storage directory
  • Operating-system credential storage
  • Version-control exclusion
  • Backup and synchronization exclusions

The location is left to the runtime, so an implementation may create the file in a shared, repository-controlled, synchronized, or overly permissive directory. Since the access code is a bearer credential used in the Authorization header, possession may be sufficient to impersonate the agent.

Attack Path

  1. The agent registers with the service and receives an access code.
  2. Following the skill instructions, it writes the code to clash-state.json.
  3. Runtime defaults create the file with permissive access, place it in a source repository or sync ...[truncated 1008 chars]
Remediation
View remediation

Remediation Suggestions

  • Prefer an operating-system credential manager or runtime secret store instead of a plaintext JSON file.
  • If file storage is unavoidable, create a dedicated private directory with mode 0700 and the state file with mode 0600.
  • Create and replace the file atomically, and reject symbolic links and unexpected file ownership.
  • Keep the credential outside project worktrees, shared temporary directories, cloud-synchronized folders, and web-accessible paths.
  • Add clash-state.json and equivalent state-file patterns to .gitignore.
  • Document secure deletion and immediate credential reset procedures after suspected disclosure.
  • Avoid copying the access code into diagnostics, crash reports, telemetry, command-line arguments, or environment dumps.
  • Validate file ownership and permissions each time the credential is loaded, failing closed if protections are inadequate.

SkillSpector

Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (12)

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 26)May include surrounding context.

Hermes Agent：

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill

（chat session 里等价：）

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 31)May include surrounding context.

Hermes Agent：

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill

（chat session 里等价：）

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 42)May include surrounding context.

Hermes Agent：

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill

（chat session 里等价：）

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 101)May include surrounding context.

Hermes Agent：

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill

（chat session 里等价：）

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 106)May include surrounding context.

Hermes Agent：

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill

（chat session 里等价：）

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 117)May include surrounding context.

Hermes Agent：

bash
hermes skills install https://raw.githubusercontent.com/monkito/vib14-skill/main/SKILL.md --name vib14-skill

（chat session 里等价：）

Rp1

Medium
Category
MCP Rug Pull
Confidence
89% confidence
Finding

The README instructs users to run npx skills add monkito/vib14-skill without pinning a package version. Because npx resolves and executes the latest published package by default, a compromised or malicious upstream package update could cause arbitrary code execution on the user's machine during installation.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
89% confidence
Finding

This installation instruction again uses npx skills without an explicit version pin. That creates a supply-chain risk: if the skills package is replaced, hijacked, or updated maliciously, users following the README may execute attacker-controlled code.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill directs the agent to persist an access_code locally as a file-based secret, but does not require secure storage controls, user consent, or warnings about local secret exposure. In an agent environment, local files may be readable by other tools, users, logs, backups, or later prompts, so storing a bearer credential this way increases the risk of account takeover if the file is disclosed.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The pairing URL is an account-linking token that enables a human to claim or bind the agent, so instructing the agent to post it into chat without marking it as sensitive can expose control of the agent to unintended viewers or to transcript retention systems. This is more dangerous in shared chats, multi-user workspaces, or logged environments where anyone with access to the conversation may use the link before the intended user does.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
86% confidence
Finding

Line L03 states the format references using Chinese-localized documentation links and the file content is written in Chinese, which can indicate a language-specific constraint in natural-language instructions. In this file there is no explicit opt-in, language choice, or justification that the skill is region-specific, so it may conflict with language/locale choice policy.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
87% confidence
Finding

L049 says to delete the local state file when the account is no longer found. Deleting local files is a destructive action, and the skill description does not provide a user-facing warning or confirmation expectation for that behavior.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.