The Sandbox Contains Bridge Exploit After Unbacked SAND Minted on Base and BSC
The Sandbox mentioned it has contained a vulnerability within the SAND cross-chain bridge on Base and BNB Smart Chain after an attacker minted unbacked tokens on each networks.
The undertaking put the affect at below 0.01% of the overall SAND provide. It mentioned that tokens on Ethereum (ETH) and Polygon (POL) are unaffected and that no person wallets had been compromised.
Sandbox Becomes Latest Project Reportedly Hit by an Exploit
Blockaid flagged the incident on Saturday. The agency mentioned attackers hijacked LayerZero delegate permissions via the approveAndCall perform.
“~$49B face-value SAND minted up to now throughout ~400+ txs,” Blockaid said.
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The staff mentioned that it has disabled bridging to and from Base and BSC, chopping off any route to maneuver or redeem the minted provide. It mentioned the SAND locked on Ethereum, which backs all bridged tokens, stays intact.
“An attacker was capable of mint unbacked SAND on Base and BSC. We have disabled bridging to and from each networks, so SAND on Base and BSC is at present remoted and can’t be moved or redeemed,” the post learn.
The undertaking instructed holders to not purchase, promote, or commerce SAND on both community, warning that liquidity there may be compromised. It is taking a pre-incident snapshot and getting ready compensation for qualifying liquidity suppliers, with a full autopsy promised.
Korean Exchanges Halt SAND Transfers
Meanwhile, Bithumb suspended SAND deposits and withdrawals at 11:11 a.m. KST, and Upbit followed one minute later. Both cited suspected security incidents below South Korea’s Virtual Asset User Protection Act.
Upbit imposed a halt on the Ethereum model of SAND, which the undertaking has since mentioned was by no means in danger.
The incident fits a wider pattern. DefiLlama has logged 17 separate exploits so far this month, most of them small, with bridges once more the recurring weak level.
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