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Commits
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ee684a29a9 |
feat(sandbox): presets — additive workload allowance bundles (#387)
* feat(sandbox): introduce presets - additive workload allowance bundles Presets are named, additive-only bundles of sandbox allowances for a specific workload (git hooks tooling, Astro/Vite/Next.js dev servers). They solve the per-workload tuning friction from #384 without weakening the default posture: no built-in profile references a preset, presets cannot carry deny rules or profile booleans (strict YAML decoding), and mandatory denies still win everywhere except the existing exact-match suppression. - Preset schema with metadata (author, labels) and schema_version gating - Registry over ordered sources (embedded builtin, user dir); builtin wins name collisions; source abstraction is the extension point for a future hosted registry and SafeDep cloud sync - Official presets: git, astro, vite, nextjs (with threat notes) - Overlay/runtime integration: pmg sandbox allow preset=<name> and --sandbox-allow preset=<name>, stored by reference, resolved at apply time, missing presets warn (fail closed) instead of aborting - Profile integration: presets: [...] list resolved after inherits - CLI: pmg sandbox preset list (metadata filters, --json), show (prints YAML with threat notes), lint - Docs: user guide (docs/sandbox-presets.md) and design spec Closes #384 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * fix(sandbox): address review findings on presets - Presets never modify deny lists: a profile authored deny now survives a preset allowing the same path (deny-beats-allow keeps it enforced). Regression test added. - Profile inspection commands (show, diff, lint) construct the profile registry with the user-aware preset registry so they agree with runtime resolution of custom profiles referencing user presets. - Handle stderr write error when warning about unresolvable presets. - Compute preset show underline from the uncolored header. - Use path.Join for embed.FS reads (slash-separated on all platforms). - Clarify in docs that lint-staged/astro are examples of preset workloads. - Drop the design spec from the PR per review. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * fix(sandbox): harden preset precedence against authored denies Addresses external security review findings on the preset mechanism: - Bubblewrap: a mandatory write-denied path listed in allow_read lost its protection when a later writable parent bind covered it (bwrap last mount wins) - exactly the git preset shape (allow_read .git/config + allow_write .git/**). The mandatory deny now re-binds the path read-only after all writable mounts instead of being skipped. Regression test asserts mount ordering. Landlock and Seatbelt were unaffected (tests added for the same policy shape on Landlock). - Environment: ScrubEnv is allow-wins, so a preset environment allowance could override a profile-authored deny. Preset env allowances overlapping an authored deny pattern are now dropped at application time (conservative bidirectional glob overlap, fail closed). Surviving entries still opt out of built-in credential scrubbing as intended. - Network: removed allow_outbound from the preset schema. Both platform translators are all-or-nothing for outbound (one allow rule means blanket network access), so a preset outbound entry would silently change network posture far beyond what its YAML conveys. Strict decoding rejects the key. - Added a dual-path expansion equivalence test (profile presets: field vs overlay/--sandbox-allow) and documented the precedence guarantees in docs/sandbox-presets.md. Explicit --sandbox-allow and pmg sandbox allow overrides keep their existing semantics. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * docs(sandbox): document env and preset allowances in allow command and overlay docs pmg sandbox allow help, the --sandbox-allow flag usage, and the project overlay docs enumerated only read/write/exec/net types. Add env and preset to all of them, with an overlay example for persisting an env allowance and a note on why env entries are not auto-promoted by --last. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * chore(sandbox): trim preset code comments to corner cases and minimal godocs Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * fix(sandbox): exact glob intersection for preset env deny overlap The bidirectional literal-text heuristic missed overlapping globs with different literal structure: preset allow AWS_*_KEY and authored deny AWS_SECRET_* both match AWS_SECRET_ACCESS_KEY but neither pattern matches the other's text, so the allowance merged and allow-wins scrubbing exposed the variable. EnvPatternsOverlap now computes exact intersection non-emptiness for the name glob dialect (case-insensitive, '*' any sequence, '?' single char) via memoized DP. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * fix(sandbox): preset env allowances are exact names, not globs Glob-vs-glob intersection is a losing game: every dialect extension (character classes today) silently reopens the deny-bypass hole. Restricting preset environment allowances to literal variable names makes the authored-deny precedence check exact by construction: each deny pattern is evaluated against the concrete name with the same matcher ScrubEnv uses at runtime, so the decision cannot diverge from enforcement regardless of deny dialect. Removes the glob intersection machinery. Profile and --sandbox-allow env globs are unaffected. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * fix(sandbox): reject mandatory-deny targets in preset paths Preset validation relied on IsSensitiveProjectTarget, which covers fewer files than util.DANGEROUS_FILES. A preset naming .git-credentials, .pgpass, .docker/config.json or .config/gh exactly would exact-match suppress the mandatory deny; .git/config in allow_write would suppress the write protection. Preset paths are now checked against DANGEROUS_FILES (single source of truth), .git/hooks is rejected in any direction, and .git/config is rejected for write/exec while read stays allowed for git repo discovery. Docs state the two deliberate opt-outs precisely. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * feat(sandbox): preset init and edit commands for community authoring pmg sandbox preset init scaffolds a valid user preset (metadata flags, threat-note template, starter rule) and refuses built-in names since builtins win resolution. pmg sandbox preset edit opens the file via the shared editor package and validates the result, warning when a user preset is shadowed by a built-in. Docs lead with the scaffolded flow and spell out builtin-vs-community provenance in preset list. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn * refactor(sandbox): move mandatory-target matching into util Preset path validation re-encoded knowledge util already owns: the dangerous-files comparison and hardcoded .git/config and .git/hooks strings. util now exports GitConfigPath, GitHooksPath (also used by GetMandatoryDenyPatterns), PathCoveredBy and DangerousFileMatch, and preset validation consumes them so the mandatory deny policy has a single definition. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PETCfE4crLcmodosz12qRn --------- Co-authored-by: Claude <noreply@anthropic.com> |
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5131c3f641 |
feat(sandbox): ExecutionContext plumbing and fail-closed lockdown contract (#371)
* feat(sandbox): ExecutionContext plumbing and fail-closed lockdown contract
Network lockdown needs the PMG proxy's address, which is only known at
spawn time. Thread an ExecutionContext from the proxy flow through the
runner and executor into every sandbox driver, and enforce the
network_via_proxy_only fail-closed contract: lockdown without a running
loopback proxy, or on a driver that cannot enforce it, is a hard error —
never a silent fallback to unrestricted network.
- sandbox.ExecutionContext{ProxyAddr} + 4-arg Sandbox.Execute
- sandbox.ValidateLockdown validates the proxy address (loopback only)
with usefulerror code SandboxRequiresProxy
- Seatbelt validates lockdown before translation (translation itself
lands next); bubblewrap and landlock reject lockdown as unsupported
until Linux enforcement is implemented
- executor.WithExecutionContext, runner.ExecuteOptions.SandboxProxyAddr,
proxy flow passes the live proxy address
- ApplySandbox also validates centrally before invoking the driver
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PqMU5GNBbQvQct9nxek1VS
* fix(sandbox): require numeric in-range proxy port in ValidateLockdown
The validated port string is embedded into generated sandbox profiles,
so service names, zero, and out-of-range ports are refused.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PqMU5GNBbQvQct9nxek1VS
* fix(sandbox): fail closed on Seatbelt lockdown until translation lands
A lockdown policy that passed proxy validation would silently receive
the pre-lockdown network rules from the translator. Reject it until the
lockdown profile translation is implemented, keeping the window between
plumbing and enforcement fail-closed.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PqMU5GNBbQvQct9nxek1VS
* chore: review feedback — drop redundant comment, simplify stub help text
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PqMU5GNBbQvQct9nxek1VS
---------
Co-authored-by: Claude <noreply@anthropic.com>
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Abhisek DattaandGitHub
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c7244f921a |
feat: Add support for environment protection (scrubbing) (#327)
* feat: Add support for environment variable protection for sandbox * chore: Update dangerous env var list * fix: Split profiles for improved environment protection * fix: pipx sandbox profile separation * chore: Show sandbox scrub info on error exit * fix: Code review fixes * test: Add e2e for sandbox environment scrubbing |
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Abhisek DattaandGitHub
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b8588e3df4 |
feat: Add Sandbox Inspection and Debugging Commands (#261)
* feat: add sandbox DX commands * fix: Linter errors * fix: Sandbox deny log parsing * fix: Sandbox docs * refactor: Maintain SSOT across pkg dependencies * fix: Linter errors |
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Abhisek DattaandGitHub
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d993d57e3d |
feat: Add support for sandbox diagnostic log (#245)
* feat: Add support for sandbox diagnostic log * fix: Normalize and prioritise sandbox violations * fix: Code review fixes |
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9693428171 |
feat: Experimental Sandbox Support (#101)
* feat: Sandbox implementation with seatbelt * refactor: Remove concept of PM_CACHE * fix: Misc fixes * refactor: Sandbox for separation of boundaries * fix: Apply API * fix: Add support for sandbox cleanup * test: Add variable interpolation test * fix: Misc cleanup fixes * chore: Cleanup sandbox registry * chore: Cleanup sandbox policy * chore: Cleanup sandbox * fix: Misc cleanup fixes * fix: Remove violation mode * fix: Update config template * chore: Go mod cleanup * fix: Handle the case when package manager policy is explicitly disabled * fix: Sandbox executor * Apply suggestions from code review Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Signed-off-by: Abhisek Datta <abhisek.datta@gmail.com> * test: Remove unused var * test: Add test for seatbelt sandbox driver * fix: Sandbox profile loader from file should use path for caching * test: Add policy test * feat: Add support for config templates * fix: Seatbelt translator handle glob * fix: Merge conflicts * fix: Fix sandbox policy generator for MacOS min permissions * fix: Sandbox path handling bugs * fix: Deny read to dangerous directories * fix: Deny read to dangerous directories * add sandbox e2e (#112) * fix: Sandbox E2E test * fix: Code review fixes * fix: Code review fixes * doc: Add sandbox debugging guide * doc: Update sandbox doc * docs: Add sandbox usage doc * fix: Use better error for sandbox without policy * fix: Add sandbox for npx * fix: Enable PTY for npm --------- Signed-off-by: Abhisek Datta <abhisek.datta@gmail.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Sahil Bansal <bansalsahil315@gmail.com> |