oauth-sso SKILL.md skillA
oauth-sso from hellodqy/mastermind-bug-bounty is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hellodqy/mastermind-bug-bounty/oauth-sso@git:20260914.819e838Pins git:20260914.819e838 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hellodqy/mastermind-bug-bounty
- Path
skills/oauth_sso/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260914.819e838, committed Sep 14, 2026
- First version recorded
- Jun 2, 2026
- Size
- 1,062 bytes
- Repository stars
- 14
- License
- none declared
Analyze OAuth/OIDC/SSO flows as identity-chain attack surfaces.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# OAuth / SSO ## Goal 判断登录、授权、回调、token 交换和账号绑定流程是否能导致身份混淆、会话固定、越权登录或权限提升。 ## Tools / Inputs - login URL、authorize URL、redirect_uri、state、code、id_token、callback - 资源索引：`references/INDEX.md`；候选资源：`oauth-oidc-saml-testing.md`；跨漏洞链路再读 `decision-trees.md` ## Constraints 1. 只用测试账号验证身份链。 2. 不修改真实用户绑定状态。 3. 每个 OAuth 异常必须证明最终登录身份或权限变化。 4. state/redirect/token 问题要串到实际账号影响。 5. 发现新 token 后回注 API/JWT 测试。 ## Chain Questions - 谁控制 redirect_uri、state、code、token、account binding？ - 是否能把攻击者会话绑定给受害者？ - 是否能把普通身份升级到管理员或企业身份？ - token 能不能调用后端 API？
Read the whole file at its exact version.
How to install
mdr add hellodqy/mastermind-bug-bounty/oauth-sso@sha256:a1b9cbab64ce247aThe line at the top of this page pins the label git:20260914.819e838, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_puks2gbkkgr5he46)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 2, 2026 and Sep 14, 2026, about one every 35 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.819e838 latest | 2026-09-14 | 819e838 | 1,062 B | A | view · diff |
| git:20260709.c284c01 | 2026-07-09 | c284c01 | 1,009 B | A | view · diff |
| git:20260709.a882698 | 2026-07-09 | a882698 | 975 B | A | view · diff |
| git:20260602.95e27a7 | 2026-06-02 | 95e27a7 | 3,995 B | B | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1062 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
hellodqy/mastermind-bug-bounty · 14 stars · license none declared · pushed 2026-09-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_puks2gbkkgr5he46 GET https://markdownregistry.com/api/v1/resolve?ref=hellodqy/mastermind-bug-bounty/oauth-sso GET https://markdownregistry.com/api/v1/blob/a1b9cbab64ce247aa87f94e281629a640b986d0fd922524991d505a6170963c4
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.