T09 · Insecure Skill Coding Practices
Warning
- Location
v2-lib.js:80- Finding
Output Discovery May Return an Unrelated Dia Work File
- Content
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onlyCtxs.includes(c)); for (const ctx of ctxs) { const wd = path.join(contextsDir, ctx, 'work'); for (const f of walk(wd)) { let st; try { st = fs.statSync(f); } catch { continue; } if (st.mtimeMs < sinceMs) continue; if (path.basename(f) === name) return f; if (!f.includes('/artifacts/') && st.mtimeMs > bestM) { bestM = st.mtimeMs; best = f; } } } return best; } ``` The v1 fallback contains the same behavior: ```js function findOutput(name, sinceMs) { let best = null, bestM = 0; let ctxs = []; try { ctxs = fs.readdirSync(CONTEXTS); } catch { return null; } for (const ctx of ctxs) { const wd = path.join(CONTEXTS, ctx, 'work'); for (const f of walk(wd)) { let st; try { st = fs.statSync(f); } catch { continue; } if (st.mtimeMs < sinceMs) continue; if (path.basename(f) === name) return f; if (!f.includes('/artifacts/') && st.mtimeMs > bestM) { bestM = st.mtimeMs; best = f; } } } return best; } ``` ### Technical Analysis Each request generates a unique expected filename such as `dia_out_1730000000000.md`. However, if that exact filename is not found, `findOutput()` returns the newest non-artifact file modified after `sinceMs`. Consequently, filename uniqueness is not enforced as a security or integrity boundary. Any other recent file in a scanned Dia work directory can be treated as the requested response. The behavior is i ...[truncated 2165 chars]- Remediation
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