blind-sqli-extraction SKILL.md skillA
blind-sqli-extraction from dreadnode/capabilities is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dreadnode/capabilities/blind-sqli-extraction@git:20260626.23d9b6bPins git:20260626.23d9b6b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dreadnode/capabilities
- Path
capabilities/web-security/skills/blind-sqli-extraction/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260626.23d9b6b, committed Jun 26, 2026
- Size
- 5,977 bytes
- Repository stars
- 22
- License
- MIT
Extract data from boolean and timing-based blind SQL injection points. Use when you have a confirmed injection point with a reliable oracle but no direct output — covers oracle identification, WAF bypass, and efficient extraction via LIKE narrowing and DIV bisection.
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
# Blind SQLi Extraction You have confirmed SQL injection. The application does not return query results directly. You need to extract data one condition at a time through a boolean or timing oracle. ## Pattern - Injectable parameter confirmed (boolean differential or timing differential) - No UNION/error-based output available - Need to extract version, user, schema, or application data - WAF may block common keywords or quote characters ## Workflow ### 1. Identify the Oracle The oracle is the observable difference between TRUE and FALSE conditions. Find it before extracting anything. | Oracle Type | Signal | Example | |---|---|---| | Boolean (response body) | JSON field value changes, result count differs, content present/absent | `paging.total = 5` (TRUE) vs `paging.total = 0` (FALSE) | | Boolean (status code) | 200 vs 500, 200 vs 302 | Inject `' AND 1=1--` vs `' AND 1=0--` | | Boolean (response size) | Byte count delta >10 bytes | TRUE returns full page, FALSE returns empty/error | | Timing | Response time delta >2s | `' AND IF(1=1,SLEEP(3),0)--` vs baseline | …
Read the whole file at its exact version.
How to install
mdr add dreadnode/capabilities/blind-sqli-extraction@sha256:8c34105f1cdf5c8dThe line at the top of this page pins the label git:20260626.23d9b6b, 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_nychtkyfdk2jpxgt)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 26, 2026.
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 (5977 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
dreadnode/capabilities · 22 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_nychtkyfdk2jpxgt GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/blind-sqli-extraction GET https://markdownregistry.com/api/v1/blob/8c34105f1cdf5c8d4f82651380be5165532b88dadee63d71b8bfac1947bd4287
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.