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fix(purchaseorderline): return 404 on cross-tenant access — close tenant enumeration leak #214

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Merged
CryptoJones merged 1 commit into from
May 19, 2026
Merged

fix(purchaseorderline): return 404 on cross-tenant access — close tenant enumeration leak #214

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13 changes: 10 additions & 3 deletions app/controllers/purchaseorderlinecontroller.js
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Original file line number Diff line number Diff line change
Expand Up @@ -79,8 +79,13 @@ exports.getById = async (req, res) => {
if (!isMaster) {
const authCompanyId = await GetCompanyId(authKey);
const headerCompanyId = await GetCompanyIdByPohId(line.polpoh);
// Cross-tenant access is reported as 404, not 403 — otherwise
// a scoped caller can enumerate which PurchaseOrderLine ids
// are populated across the whole tenant table by status code.
// Same secure-404 pattern as the prior 7 entities (#174 / #188
// / #192 / #196 / #200 / #204 / #210).
if (authCompanyId === -1 || headerCompanyId === -1 || authCompanyId !== headerCompanyId) {
return res.status(403).json({ message: "Invalid Authorization Key." });
return res.status(404).json({ message: "Not found." });
}
}
return res.status(200).json({ message: "Found.", purchaseOrderLine: line });
Expand Down Expand Up @@ -152,8 +157,9 @@ exports.update = async (req, res) => {
if (!isMaster) {
const authCompanyId = await GetCompanyId(authKey);
const headerCompanyId = await GetCompanyIdByPohId(line.polpoh);
// Secure-404 on PATCH for the same reason as GET.
if (authCompanyId === -1 || headerCompanyId === -1 || authCompanyId !== headerCompanyId) {
return res.status(403).json({ message: "Invalid Authorization Key." });
return res.status(404).json({ message: "Not found." });
}
}

Expand Down Expand Up @@ -196,8 +202,9 @@ exports.remove = async (req, res) => {
if (!isMaster) {
const authCompanyId = await GetCompanyId(authKey);
const headerCompanyId = await GetCompanyIdByPohId(line.polpoh);
// Secure-404 on DELETE for the same reason as GET / PATCH.
if (authCompanyId === -1 || headerCompanyId === -1 || authCompanyId !== headerCompanyId) {
return res.status(403).json({ message: "Invalid Authorization Key." });
return res.status(404).json({ message: "Not found." });
}
}

Expand Down
90 changes: 90 additions & 0 deletions tests/api/purchaseorderline.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -102,3 +102,93 @@ describe('PurchaseOrderLine body validation', () => {
expect(res.status).toBe(400);
});
});

describe('PurchaseOrderLine tenant-enumeration defense (secure 404)', () => {
// Two-level cascade: polpoh → header.pohPovId → vendor.povCompId.
// Spy on getCompanyIdByPohId (which itself walks header→vendor)
// so the cascade resolves to a different company than the caller.
test('controller getById: existing-but-not-yours returns 404 to non-master', async () => {
const auth = require('../../app/middleware/auth.js');
const controller = require('../../app/controllers/purchaseorderlinecontroller.js');
const isMasterSpy = vi.spyOn(auth, 'isMaster').mockResolvedValue(false);
const getCompanyIdSpy = vi.spyOn(auth, 'getCompanyId').mockResolvedValue(7);
const getCompanyIdByPohIdSpy = vi.spyOn(auth, 'getCompanyIdByPohId').mockResolvedValue(99);
try {
const db = require('../../app/config/db.config.js');
db.PurchaseOrderLine.findByPk = vi.fn().mockResolvedValue({
polId: 42, polpoh: 13, polArch: false,
});
const req = { get: (h) => (h === 'authKey' ? 'scoped-to-7' : undefined), params: { id: 42 } };
let captured = null;
const res = {
status(code) { this._code = code; return this; },
json(body) { captured = { code: this._code, body }; return this; },
};
await controller.getById(req, res);
expect(captured.code).toBe(404);
expect(captured.body.message).toMatch(/not found/i);
} finally {
isMasterSpy.mockRestore();
getCompanyIdSpy.mockRestore();
getCompanyIdByPohIdSpy.mockRestore();
}
});

test('controller update: existing-but-not-yours returns 404 to non-master', async () => {
const auth = require('../../app/middleware/auth.js');
const controller = require('../../app/controllers/purchaseorderlinecontroller.js');
const isMasterSpy = vi.spyOn(auth, 'isMaster').mockResolvedValue(false);
const getCompanyIdSpy = vi.spyOn(auth, 'getCompanyId').mockResolvedValue(7);
const getCompanyIdByPohIdSpy = vi.spyOn(auth, 'getCompanyIdByPohId').mockResolvedValue(99);
try {
const db = require('../../app/config/db.config.js');
db.PurchaseOrderLine.findByPk = vi.fn().mockResolvedValue({
polId: 42, polpoh: 13, polArch: false, update: vi.fn(),
});
const req = {
get: (h) => (h === 'authKey' ? 'scoped-to-7' : undefined),
params: { id: 42 },
body: { polItemDesc: 'X' },
};
let captured = null;
const res = {
status(code) { this._code = code; return this; },
json(body) { captured = { code: this._code, body }; return this; },
};
await controller.update(req, res);
expect(captured.code).toBe(404);
expect(captured.body.message).toMatch(/not found/i);
} finally {
isMasterSpy.mockRestore();
getCompanyIdSpy.mockRestore();
getCompanyIdByPohIdSpy.mockRestore();
}
});

test('controller remove: existing-but-not-yours returns 404 to non-master', async () => {
const auth = require('../../app/middleware/auth.js');
const controller = require('../../app/controllers/purchaseorderlinecontroller.js');
const isMasterSpy = vi.spyOn(auth, 'isMaster').mockResolvedValue(false);
const getCompanyIdSpy = vi.spyOn(auth, 'getCompanyId').mockResolvedValue(7);
const getCompanyIdByPohIdSpy = vi.spyOn(auth, 'getCompanyIdByPohId').mockResolvedValue(99);
try {
const db = require('../../app/config/db.config.js');
db.PurchaseOrderLine.findByPk = vi.fn().mockResolvedValue({
polId: 42, polpoh: 13, polArch: false, update: vi.fn(),
});
const req = { get: (h) => (h === 'authKey' ? 'scoped-to-7' : undefined), params: { id: 42 } };
let captured = null;
const res = {
status(code) { this._code = code; return this; },
json(body) { captured = { code: this._code, body }; return this; },
};
await controller.remove(req, res);
expect(captured.code).toBe(404);
expect(captured.body.message).toMatch(/not found/i);
} finally {
isMasterSpy.mockRestore();
getCompanyIdSpy.mockRestore();
getCompanyIdByPohIdSpy.mockRestore();
}
});
});