700dc2254d
Automated security review (HIGH) caught a jail-escape my own review
missed: copy_recursive used fs::metadata (follows symlinks). A symlink
inside the jail pointing to e.g. /etc, then a 'copy' of its parent dir,
would dereference it and pull external content INTO the jail where it
could be read — a read-escape exfiltration. jail() validates only the
top-level src/dest; the recursive walk reintroduced the escape.
Fix: copy_recursive uses symlink_metadata and refuses any symlink
('symlinks are not followed across the jail boundary'). list() likewise
switched to symlink_metadata so it reports the link, never the
dereferenced target's size/type (info leak). Two regression tests added:
copy-symlink-exfil (asserts no external content lands inside) and
list-no-deref. 44/44 tests green. Rolled forward to alpha.4 (vulnerable
alpha.3 superseded).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
44 lines
1.1 KiB
TOML
44 lines
1.1 KiB
TOML
[package]
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name = "corrosion-host-agent"
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version = "2.0.0-alpha.4"
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edition = "2021"
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description = "Corrosion Host Agent — multi-game ops runtime for self-hosted game servers"
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license = "UNLICENSED"
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publish = false
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[[bin]]
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name = "corrosion-host-agent"
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path = "src/main.rs"
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[dependencies]
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tokio = { version = "1", features = ["full"] }
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tokio-util = { version = "0.7", features = ["rt"] }
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futures = "0.3"
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async-nats = "0.37"
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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toml = "0.8"
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sysinfo = "0.33"
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chrono = { version = "0.4", features = ["serde", "clock"] }
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tracing = "0.1"
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tracing-subscriber = { version = "0.3", features = ["env-filter", "fmt"] }
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anyhow = "1"
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clap = { version = "4.5", features = ["derive"] }
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rand = "0.8"
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tokio-tungstenite = "0.24"
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[target.'cfg(unix)'.dependencies]
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libc = "0.2"
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[dev-dependencies]
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tempfile = "3"
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# Size-optimized release: single static binary living next to RAM-heavy game
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# servers. Panic stays 'unwind' so a panicking task surfaces through its
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# JoinHandle instead of killing the whole agent.
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[profile.release]
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opt-level = "s"
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lto = true
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codegen-units = 1
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strip = true
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