Osec — Solana: An Auditor’s Introduction (reference)
Educational routing only. This skill does not reproduce the full article or code excerpts. Read the live post for complete detail.
Canonical URL
- Solana: An Auditor’s Introduction — osec.io blog, 14 March 2022.
Publisher: Otter Sec / Otter Audits LLC (smart contract security audits; per site footer).
What the article covers (outline)
The post frames Solana program security from a researcher / auditor lens: how the runtime executes contracts, where trust boundaries sit, and what an attacker can influence.
| Theme | Topics (high level) |
|---|---|
| Execution model | Programs as eBPF ELF loaded via BPF Loader; accounts as pubkey-addressed state; invocations = program id + account list + instruction data; no EVM-style “methods” at the syscall boundary—dispatch via instruction bytes (e.g. enums). Memory map regions (code/stack/heap/inputs) at a glance; Rust reducing typical memory-corruption focus. |
| Entry / deserialization | Common entrypoint and deserialization helpers; distinction between data serialized by the runtime vs fields under attacker control (e.g. instruction data; account list selection)—and metadata enforced by the runtime (signers, writable, owner). Links type confusion / wrong-account issues to lack of execution-level typing (mitigations such as hardcoded pubkeys, discriminators—often formalized today via Anchor). |
| Native programs | System Program and illustrative CreateAccount vs Transfer signer requirements; ownership constraints (e.g. SPL token accounts vs system-owned accounts). |
The introduction explicitly recommends Neodyme’s Security Workshop for hands-on vulnerability classes; this article complements it with fundamentals-first runtime context.
How to combine with blockint
| Need | Skill |
|---|---|
| Hands-on vulnerable levels | neodyme-solana-security-workshop |
| Anchor exploit/mitigation snippets | sealevel-attacks-solana |
| Audit / review workflow | solana-defi-vulnerability-analyst-agent |
| Doc indexes & tooling | solana-onchain-intelligence-resources |
Guardrails
- Staleness — published 2022; Solana runtime, program IDs, and best practices evolve—cross-check Solana documentation and current SIMD / release notes for material facts.
- Not a specification — blog is pedagogical; final authority is source code and on-chain behavior.
- Ethics — use understanding for defense, audits, and responsible disclosure, not theft or unauthorized exploitation.
Goal: a stable pointer to osec.io Solana security intro for runtime-aware Solana security reasoning in blockint.