exchange-sharepoint
Microsoft Exchange and SharePoint attack techniques — enumeration, ProxyLogon/ProxyShell/ProxyToken exploitation, mailbox access, SharePoint file exfiltration.
Skill by LeoWSY-hashblue
Chalk Labs
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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
Reviews
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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.
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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
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-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)