unboundcompute/security-agent-skills · skills/auditing-session-lifecycle-and-fixation/SKILL.md

auditing-session-lifecycle-and-fixation skillA

auditing-session-lifecycle-and-fixation is agent-read markdown (skill) from unboundcompute/security-agent-skills: Audit how an application issues, rotates, and destroys session identifiers, so an attacker cannot fixate or outlive a session. Covers a session identifier not regenerated at login or privilege change, a logout that clears the client cookie but leaves the server session valid, a session that never expires or has no idle or absolute timeout, an identifier accepted from a URL or a header an attacker can seed, a session cookie missing the secure, http-only, or same-site attributes, and a cookie scop.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add unboundcompute/security-agent-skills/auditing-session-lifecycle-and-fixation@git:20260823.e797ed0
Exact content
mdr add unboundcompute/security-agent-skills/auditing-session-lifecycle-and-fixation@sha256:534cb98745407772

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_hnnokjok7gc4dkvl.svg)](https://markdownregistry.com/a/art_hnnokjok7gc4dkvl)

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Versions

versioncommittedcommitsizeaudit
git:20260823.e797ed0 latest2026-08-23 e797ed0 10,118 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10118 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

GitHub

unboundcompute/security-agent-skills · 5 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hnnokjok7gc4dkvl
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-session-lifecycle-and-fixation
GET https://markdownregistry.com/api/v1/blob/534cb98745407772689fb00ee2e7425d86c92ecea0c2887380d988e19ba940a0

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.