攻撃トランザクション:
0x26aa86261c834e837f6be93b2d589724ed5ae644bc8f4b8af2207e6bd70828f9
攻撃 スマートコントラクト はオープンソースです。
ステップ 1: 0x054e がトランザクションを送信し、ウォレット (0x41b8) の 0x0eba に管理者ロールを付与します。
次に、0x0eba が「DAO コントラクト」ロールを 0x1c93 に付与します。
最後に、0x1c93 (XXX) が withdrawFromUser 関数を呼び出し、XXX コントラクトに資金を転送します。
興味深いことに、被害者 0x41b8 は 0x054e によって作成されています。
要約すると、0x054e は被害者 0x41b8 ウォレットを作成します。次に、0x054e が 0x0eba に管理者ロールを付与し、0x0eba が「DAO コントラクト」ロールを 0x1c93 に付与します。最後に、0x1c93 が被害者から資金を引き出します。
Drift Protocol Incident: Multisig Governance Compromise via Durable Nonce Exploitation
On April 1, 2026 (UTC), Drift Protocol on Solana suffered a $285.3M loss after an attacker exploited Solana's durable nonce mechanism to delay the execution of phished multisig approvals, ultimately transferring administrative control of the protocol's 2-of-5 Squads governance with zero timelock. With full admin privileges, the attacker created a malicious collateral market (CVT), inflated its oracle price, relaxed withdrawal protections, and drained USDC, JLP, SOL, cbBTC, and other assets through 31 rapid withdrawals in approximately 12 minutes. This incident highlights how durable nonce-based delayed execution can decouple signer intent from on-chain execution, bypassing the temporal assumptions that multisig security implicitly relies on.
Weekly Web3 Security Incident Roundup | Mar 23 – Mar 29, 2026
This BlockSec weekly security report covers eight DeFi attack incidents detected between March 23 and March 29, 2026, across Ethereum and BNB Chain, with total estimated losses of approximately $1.53M. Incidents include a $679K flawed burn mechanism exploit on the BCE token, a $512K spot-price manipulation attack on Cyrus Finance's PancakeSwap V3 liquidity withdrawal, a $133.5K flash-loan-driven referral reward manipulation on a TUR staking contract, and multiple integer overflow, reentrancy, and accounting error vulnerabilities in DeFi protocols. The report provides detailed vulnerability analysis and attack transaction breakdowns for each incident.
Newsletter - March 2026
In March 2026, the DeFi ecosystem experienced three major security incidents. Resolv Protocol lost ~$80M due to compromised privileged infrastructure keys, BitcoinReserveOffering suffered ~$2.7M from a double-minting logic flaw, and Venus Protocol incurred ~$2.15M following a donation attack combined with market manipulation.
