exchange-sharepoint

Microsoft Exchange and SharePoint attack techniques — enumeration, ProxyLogon/ProxyShell/ProxyToken exploitation, mailbox access, SharePoint file exfiltration.

Skill by LeoWSY-hashblue

IndexedMIT★ 3

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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/leowsy-hashblue-exchange-sharepoint

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Microsoft Exchange and SharePoint attack techniques — enumeration, ProxyLogon/ProxyShell/ProxyToken exploitation, mailbox access, SharePoint file exfiltration.

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools: No tools found
Secrets: None asked for
Install scripts: None found

Network hosts it talks to 1

codeload.github.com · found in install command

Files it touches

~/.claude/skills/exchange-sharepoint

What's inside

Skill name: exchange-sharepoint
Description: Microsoft Exchange and SharePoint attack techniques — enumeration, ProxyLogon/ProxyShell/ProxyToken exploitation, mailbox access, SharePoint file exfiltration.
License: MIT
Instructions: 25 lines in SKILL.md · view on GitHub

Files (4)

SKILL.md
exchange-enum-access.md · reference/
proxylogon-proxyshell-token.md · reference/
sharepoint-attacks.md · reference/

SKILL.md (first lines)

# Exchange & SharePoint Attacks

Target Microsoft collaboration infrastructure in enterprise environments.

## Techniques

| Target | Vectors |
|--------|---------|
| **Exchange** | Version fingerprint, NTLM info leak, OAB user enum, ProxyLogon (CVE-2021-26855), ProxyShell (CVE-2021-34473), ProxyToken (CVE-2021-33766), EWS mailbox access, GAL dump |
| **SharePoint** | REST API enumeration, site/user/document access, sensitive file search, CSOM access |

## Workflow

1. Fingerprint Exchange/SharePoint version and exposed endpoints
2. Check for unauthenticated vulnerabilities (Proxy* chain)
3. If authenticated: enumerate mailboxes, exfiltrate email, search SharePoint for credentials
4. Pivot: Exchange often runs on high-privilege server; use for lateral movement to AD

## Reference

- `reference/exchange-enum-access.md` — fingerprinting, user enumeration, mailbox access, GAL dump
- `reference/proxylogon-proxyshell-token.md` — CVE-2021-26855, CVE-2021-34473, CVE-2021-33766 exploitation
- `reference/sharepoint-attacks.md` — site/document enumeration, sensitive file search, file download

From LeoWSY-hashblue/-communitytools-custom, MIT.

Signals

Stars: 3
Forks: 1
Open issues: 0
Last commit (this folder): May 26, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License: MIT
Repository: github.com/LeoWSY-hashblue/-communitytools-custom
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: GitHub github-graphql

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Cite this page

exchange-sharepoint skill. Agent Mart. https://agentmart.dev/skills/leowsy-hashblue-exchange-sharepoint (last updated 2026-10-24)