setpriv tips — authorized privilege-boundary literacy

Last updated: · By the BinBench editorial team · Stars and releases checked via the GitHub API
For legal, authorized and educational use only. Only analyze software you own or have written permission to examine.
Quick answer

setpriv helps authorized labs sample privilege-boundary literacy on hosts they own. Pair with capsh-tips, setcap-tips, getcap-tips, runuser-tips, sg-tips. Prefer lab VMs — never escalate on foreign hosts without permission.

On this page

Snapshot

FieldValue
Surfacesetpriv tip checklist (uid/gid/capability / no-new-privs)
JobAuthorized privilege-boundary literacy
Peercapsh-tips
Peerrunuser-tips
Peersg-tips
Peergetcap-tips

Tip checklist (authorized only)

  1. Confirm you may run setpriv on the lab host (syllabus box you own or were given access to).
  2. Prefer documenting who / why / ticket before any uid/gid/capability change — never poke production without change control.
  3. Record short factual notes; quote short Evidence (uid/gid/capability labels — never passwords or tokens).
  4. Optional: capability peer → capsh-tips / getcap-tips.
  5. Optional: user-switch peer → runuser-tips / sg-tips.
  6. Prefer disposable lab accounts for setpriv drills; quote non-secret labels afterward as Evidence.
  7. Prefer --inh-caps / --bounding-set / --no-new-privs read-backs the syllabus authorizes — avoid inventing escalation cookbooks.
  8. Stop at literacy — no attack or unauthorized privilege-escalation cookbooks.

Allowed framing

  • Classroom labs reviewing setpriv on authorized disposable hosts (setpriv --dump / reuid/regid drills the syllabus provides).
  • Binding short factual notes as Evidence (uid/gid/capability labels — no secrets).
  • Documenting expected vs observed privilege-boundary literacy for authorized inventory notes.
  • Comparing setpriv ↔ peer tip pages under one binder.
  • Testing capability drops only when the syllabus authorizes that drill on lab resources.

Scope we will not cover

  • No crack/pirate/keygen via setpriv.
  • No intentional unauthorized privilege escalation against foreign hosts.
  • No secret-theft or credential harvesting via capability/uid dumps on hosts you do not own.
  • No cookbooks that weaken SELinux/AppArmor or clear no-new-privs on foreign hosts without authorization.

Beginner path (authorized only)

  1. Obtain one syllabus-approved disposable lab host with a usable setpriv toolchain.
  2. Prefer a throwaway lab account before any privilege drill.
  3. With authorization, run a syllabus-approved setpriv --dump; quote non-secret uid/gid/capability labels as Evidence.
  4. Optional: peer tip pages above when the syllabus asks.
  5. Stop at literacy — no attack or unauthorized escalation cookbooks.

Practical notes for authorized labs

  • setpriv adjusts uid/gid/capability / no-new-privs for a command — keep Evidence labels distinct from runuser-tips / sg-tips UX.
  • Pair with capsh-tips / getcap-tips only for syllabus-approved capability literacy on lab hosts.
  • Capability dumps may embed sensitive process context — never paste secrets into notes or git.
  • Prefer documenting uid/gid/capability labels the syllabus authorized without dumping full privileged inspect JSON.
  • Never commit setpriv dumps with secrets to git — even for labs.

FAQ

What is a "setpriv tip" page in BinBench framing?

A checklist for authorized privilege-boundary literacy (setpriv on lab hosts) on hosts you own or were given syllabus access to — not a cookbook for escalating against foreign hosts.

How does this relate to peer tip pages?

Complements capsh-tips / runuser-tips / sg-tips without overwrite. This page zooms on a setpriv tip checklist — it does not overwrite those pages.

Can I run setpriv against hosts I do not own?

No. Authorization first. BinBench will not publish unauthorized privilege drills against foreign hosts.

Does this teach attack PoCs via setpriv?

No. Mentions of attack/bypass appear only as refusals. Authorized literacy only — prefer lab VMs and redacted samples.

Does this teach secret theft via setpriv?

No. Never paste credentials, capability dumps with secrets, or foreign host dumps into notes. Prefer documenting uid/gid/capability labels only.

Sources