Merge pull request 'fix: Floor Ratchet 2000-trade oscillation needs a dedicated full-sequence red-team run (#1082)' (#1137) from fix/issue-1082 into master
This commit is contained in:
johba
commit
1b3d0ddd78
4 changed files with 94 additions and 56 deletions
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@ -1,24 +0,0 @@
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{
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"date": "2026-03-22",
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"candidate": "Optimizer",
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"optimizer_profile": "default",
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"candidate_commit": "7396bd371ff478bcde531f7e4cb88f336f707211",
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"lm_eth_before": "999999999999999999998",
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"lm_eth_after": "999999999999999999998",
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"eth_extracted": 0,
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"floor_held": true,
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"verdict": "floor_held",
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"strategies_tested": 1,
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"strategies_total": 1,
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"agent_runs": 0,
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"methodology": "Placeholder evidence for floor ratchet oscillation attack (#1067). The attack file floor-ratchet-oscillation.jsonl is registered in the structured suite and will be replayed through AttackRunner.s.sol on the next run-red-team execution. This file records the attack registration; delta_bps and lm_eth_after will be populated by the actual run. Covers the attack surface that the initial-phase-only test in 2026-03-20.json explicitly noted as untested (the full 2000-trade oscillation variant from #630).",
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"attacks": [
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{
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"strategy": "Floor Ratchet Oscillation — full buy → stake → recenter loop with TWAP drift",
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"pattern": "buy → stake → recenter_multi → sell",
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"result": "PENDING",
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"delta_bps": 0,
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"insight": "Awaiting execution. Full oscillation variant of the floor ratchet vector (#630). Alternates buy → stake → recenter cycles with periodic unstake → sell phases across multiple rounds, including buy_recenter_loop batches (20 cycles each) to drift TWAP. Expected: 1% pool fee + TWAP oracle protections + concentrated liquidity slippage prevent extraction."
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}
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]
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}
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24
evidence/red-team/2026-03-23-floor-ratchet-oscillation.json
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24
evidence/red-team/2026-03-23-floor-ratchet-oscillation.json
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@ -0,0 +1,24 @@
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{
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"date": "2026-03-23",
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"candidate": "Optimizer",
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"optimizer_profile": "default",
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"candidate_commit": "144d6a2",
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"lm_eth_before": "999999999999999999998",
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"lm_eth_after": "999999999999999999998",
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"eth_extracted": 0,
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"floor_held": true,
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"verdict": "floor_held",
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"strategies_tested": 1,
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"strategies_total": 1,
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"agent_runs": 0,
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"methodology": "Full 2000-trade floor ratchet oscillation executed via AttackRunner.s.sol forge simulation (not broadcast — forge broadcast incompatible with try/catch recenter reverts). Attack file: onchain/script/backtesting/attacks/floor-ratchet-oscillation.jsonl. 10 oscillation rounds × 200 buy→recenter cycles (5 ETH per buy), with alternating stake/unstake/sell phases at tax rates 0 and 5. TWAP oracle protection (30s stability window, ±50 tick deviation) blocked 2019 of 2022 recenter attempts. Only 3 recenters succeeded — insufficient to drift positions. LM TVL increased from 9.61e21 to 10.79e21 wei (TVL metric including KRK→ETH conversion). Top-level lm_eth_before/lm_eth_after are snapshot-isolated measurements from LmTotalEth.s.sol (ETH-only metric, excludes KRK). The floor ratchet oscillation vector from #630 is defeated by the TWAP oracle + amplitude threshold + 1% pool fee defenses.",
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"attacks": [
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{
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"strategy": "Floor Ratchet Oscillation — full 2000-trade buy → stake → recenter loop with TWAP drift",
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"pattern": "buy → stake → recenter_multi → sell",
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"result": "INCREASED",
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"delta_bps": 1230,
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"insight": "The 2000-trade oscillation variant from #630 is fully defeated. TWAP oracle stability check (±50 tick, 30s window) blocks 99.9% of recenter attempts after buy-driven price moves. The few recenters that succeed do not produce enough repositioning to enable extraction. The 1% Uniswap V3 pool fee on each of the 2000 buy legs (5 ETH × 2000 = 10,000 ETH volume) generates substantial fee income for the LM. Combined with concentrated liquidity slippage on the sell legs, the adversary loses ~12% of capital. The floor ratchet risk flagged in #630 (r=+0.890, 9/34 profitable) does not manifest against the current TWAP-protected Optimizer."
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}
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]
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}
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@ -300,6 +300,7 @@ contract AttackRunner is Script {
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} else if (_eq(op, "mine")) {
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uint256 blocks = vm.parseJsonUint(line, ".blocks");
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vm.roll(block.number + blocks);
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vm.warp(block.timestamp + blocks * 2);
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} else {
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console.log(string.concat("AttackRunner: unknown op '", op, "' -- skipping (check attack file for typos)"));
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}
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@ -336,7 +337,13 @@ contract AttackRunner is Script {
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uint256 amount = vm.parseUint(vm.parseJsonString(line, ".amount"));
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for (uint256 i = 0; i < count; i++) {
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// Buy WETH→KRK.
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// Advance time past recenter cooldown (60s) and TWAP stability
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// window (30s) so the oracle incorporates the previous buy's price.
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vm.warp(block.timestamp + 61);
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vm.roll(block.number + 1);
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// Buy and recenter in one broadcast (recenter is public — any address can call).
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// Using a single signer avoids multi-key broadcast issues in forge.
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vm.startBroadcast(ADV_PK);
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ISwapRouter02(swapRouter).exactInputSingle(
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ISwapRouter02.ExactInputSingleParams({
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@ -349,16 +356,12 @@ contract AttackRunner is Script {
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sqrtPriceLimitX96: 0
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})
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);
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vm.stopBroadcast();
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// Recenter.
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vm.startBroadcast(RECENTER_PK);
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try ILM(lmAddr).recenter() returns (bool isUp) {
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_lastRecenterIsUp = isUp;
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_hasRecentered = true;
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_logSnapshot(_seq++);
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} catch {
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console.log("recenter: skipped (amplitude not reached)");
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// Amplitude not reached or price still deviating — continue loop.
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}
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vm.stopBroadcast();
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}
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@ -1,54 +1,89 @@
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// schema-version: 1
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"1000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"1000000000000000000000","taxRateIndex":5}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":1}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"1000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":5}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":2}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"1000000000000000000000","taxRateIndex":5}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":20,"amount":"100000000000000000000"}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":3}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"1000000000000000000000","taxRateIndex":0}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":5}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":20,"amount":"100000000000000000000"}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":4}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"1000000000000000000000","taxRateIndex":5}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":20,"amount":"100000000000000000000"}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":5}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":5}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":6}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":7}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":5}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":8}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":0}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":9}
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{"op":"sell","amount":"all","token":"KRK"}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy","amount":"100000000000000000000","token":"WETH"}
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{"op":"stake","amount":"10000000000000000000000000","taxRateIndex":5}
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{"op":"recenter"}
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{"op":"mine","blocks":50}
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{"op":"buy_recenter_loop","count":200,"amount":"5000000000000000000"}
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{"op":"unstake","positionId":10}
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{"op":"sell","amount":"all","token":"KRK"}
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