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Kur1sulabKur1sulab/blackbox/hack-ghost-bits-cast-attack/SKILL.md

ghost-bits-cast-attack

Skill3 starsChanged 3 months agoNo licenceView on GitHub

Java "Ghost Bits" / Cast Attack playbook (Black Hat Asia 2026). Use when attacking Java services where 16-bit char is silently narrowed to 8-bit byte to bypass WAF/IDS for SQL injection, deserialization RCE, file upload (Webshell), path traversal, CRLF injection, request smuggling, and SMTP injection. Affects Tomcat, Spring, Jetty, Undertow, Vert.x, Jackson, Fastjson, Apache Commons BCEL, Apache HttpClient, Angus Mail, JDK HttpServer, Lettuce, Jodd, XMLWriter and re-enables many "patched" CVEs through WAF bypass.

2 other projects use a version of this, 2 of them edited.

Trending

Less talk lately.about the whole repository

Dec 2025: 0 mentionsJan 2026: 1 mentionFeb 2026: 4 mentionsMar 2026: 11 mentionsApr 2026: 3 mentionsMay 2026: 6 mentionsJun 2026: 9 mentionsJul 2026: 5 mentionsAug 2026: 14 mentionsSep 2026: 1 mentionOct 2026: 7 mentionsNov 2026: 1 mention
Dec 2025Jun 2026Nov 2026
Mentions a month of the Kur1sulab/blackbox repository that our weekly crawl found. There is no adoption data for this file yet.

Most recently taken up by

Who's talking about Kur1sulab/blackbox

The biggest 5 of 62 mentions linking to the repository that our crawl found. Each line is their own headline.

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Talked about on GitHub, YouTube, Bluesky and the web (62 times).

On GitHub · 32

27 more on GitHub

On YouTube · 20

15 more on YouTube

On Bluesky · 8

3 more on Bluesky

On the web · 2

The file

We split this skill into the rules it gives an agent

5 rules. About 0 are common, 4 are distinctive, and 1 is very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈4

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

No licence file, so all rights are reserved — read it at the source. We count its rules but don't quote them. Read them on GitHub.

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

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