ETHW Core has confirmed that a contract vulnerability attack against a bridge is not a replay attack against ETHW

EthereumPoW
Sep 18, 2022

--

ETHW Core had confirmed on Sep 16th that the information reported by a security company is not a replay attack against ETHW, but an attack against a bridge contract vulnerability. We have contacted the bridge in every way and informed them of the risks. A typical example is as follows.

The raw data of the TX hash were obtained through one attack.

ethpos:
0x02f90332015c8459682f0085027411b4108304dd08944c36d2919e407f0cc2ee3c993ccf8ac26d9ce64e80b902c423caab4900000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000180000000000000000000000000000000000000000000000000000000000000011500050000a7823d6f1e31569f51861e345b30c6bebf70ebe7000000000000e0f6f6a78083ca3e2a662d6dd1703c939c8ace2e268d88ad09518695c6c3712ac10a214be5109a655671000927c00101806401867f7a4d000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2000000000000000000000000a6439ca0fcba1d0f80df0be6a17220fed9c9038a00000000000000000000000000000000000000000000000ad78ebc5ac62000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000001482faed2da812d2e5cced3c12b3baeb1a522dc67700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000105041c1b1c1c981df6cdaf073d55b78d7f0c7e2b421a569bff677a9464d1d5203672d7b5a3d6af658d14ebc11c26f2547fd0aed01750cca58753a0a79b297bad8a62a71eb6b7ac2099611604eff316e7fe733e9981c1b3890cb04ff9d43612e6f2687227f0226cfa27e4b6cd96a10865e04aa9e0f369dda7548771a094f69bf0a9fa6c27257e22d2b1bbb84beb52ad3966592037b328d352fce375a1fa75cb3fbfd18166f4177a19ad2cc74ce67da68f5ce17b857e6382c3ebf20f76482534135f426f4a74222daa07d9f401cb8baca4339ecd44e285df0e0cb88447a31d08b673cecc67d22c7e6e0ce5afd2ac9439c5a8b68f05077b850cdfdfb79cdaefc5b103bb69360944000000000000000000000000000000000000000000000000000000c080a076e5c582e8a42c62802f548355c1220a2dc6ddcf32b794cc4451b1875e9e79b0a05c49ad726d56865065e362668432f3278f250c0fda5d52875b6f084a9b287034

ethw:
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

The above data shows that the original data of the two TXs are completely different, so this is an attack that exploits the contract vulnerability of the bridge.

ETHW itself has enforced EIP-155, and there is no replay attack from ETHPoS and to ETHPoS, which ETHW Core’s security engineers have planned in advance.

ETHW Core

--

--