913d62c280
Group D — three independent security primitives hardening (post-audit 2026-05-02).
kei-runtime — atom invoke RCE allowlist:
- invoke.rs: is_safe_crate_name validator (regex ^kei-[a-z][a-z0-9-]+$);
rejects /, \\, .., :, absolute paths, empty, >128 chars.
InvalidAtom error variant.
stdout/stderr capped at 16 MiB (was unbounded).
- main.rs: InvalidAtom mapped to exit code 2.
- tests/invoke_exit_codes_smoke.rs: invoke_unsafe_crate_name_exits_2 added.
- Closes: any user able to write atoms/*.md with crate_name: "rm" or "sudo"
triggered arbitrary command execution.
kei-graph-stream — WebSocket bearer + Origin:
- auth.rs (new, 142 LOC): token load + bearer extraction + Origin allowlist +
ConstantTimeEq compare; 8 unit tests.
- ws.rs: ws_handler validates Origin + bearer before upgrade (403/401 on failure).
- main.rs: --public-bind-i-accept-the-leak flag required for non-loopback bind;
else bail!() with explicit error.
- tests/smoke.rs: rewritten with Origin + bearer headers via connect_async_with_config.
- Closes: WebSocket /stream had zero auth, zero Origin check; browser CSWSH could
subscribe to agent activity broadcast; KEI_GRAPH_STREAM_BIND env silently
accepted any SocketAddr.
kei-compute-baremetal — SSH option injection (CVE-2023-51385 class):
- ssh.rs: is_safe_user + is_safe_host validators (alphanumeric + -_.; reject leading -;
max 64 chars; no @, :, /, \\, space).
- ssh.rs: -- sentinel before user@host argv (OpenSSH 9.6+ stops flag parsing).
- ssh.rs: StrictHostKeyChecking=yes default; KEI_BAREMETAL_ACCEPT_NEW=1 for TOFU.
- error.rs: InvalidRegion variant.
- provider.rs: validators applied in target_for_spec + target_for_handle.
- Closes: spec.region "-oProxyCommand=evil" triggered local RCE before TCP connect.
Test results: 29 passed; 0 failed across all three crates. cargo check clean.
Findings: RCE allowlist (Wave-A) + WebSocket auth (Wave-B) + SSH injection (Wave-B)
were unique-per-retest discoveries. None present in original wave-1 audit.
Note: kei-compute-baremetal/src/provider.rs at 300 LOC (was 268; +32 from validators).
Pre-existing >200 LOC violation, fix scope was security-additions only. Follow-up:
split provider.rs into provider.rs (<200) + provider_tests.rs.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
37 lines
1.1 KiB
TOML
37 lines
1.1 KiB
TOML
[package]
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name = "kei-runtime"
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version = "0.1.0"
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edition.workspace = true
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rust-version.workspace = true
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description = "Atom invocation runtime + schema linter"
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authors = ["Denis Parfionovich <info@greendragon.info>"]
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[[bin]]
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name = "kei-runtime"
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path = "src/main.rs"
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[lib]
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name = "kei_runtime"
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path = "src/lib.rs"
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[dependencies]
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clap = { workspace = true }
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serde = { workspace = true }
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serde_json = { workspace = true }
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# SSRF + IMDS hardening: disable default features (resolve-http, cli) so the
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# validator has no HTTP resolver by default. We configure a file-only
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# resolver explicitly in `validate.rs`.
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jsonschema = { version = "0.18", default-features = false, features = ["resolve-file"] }
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anyhow = { workspace = true }
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walkdir = { workspace = true }
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serde_yaml_ng = { workspace = true }
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kei-atom-discovery = { path = "../kei-atom-discovery" }
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url = { workspace = true }
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[dev-dependencies]
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tempfile = { workspace = true }
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[package.metadata.keisei]
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backend = "none"
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description = "Atom invocation runtime + schema linter"
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authors = ["Denis Parfionovich <info@greendragon.info>"]
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