Bancor Network Hack 2020
Contents
Bancor Network Hack 2020
A critical bug in three recently deployed versions of the Bancor Network smart contract has led to a loss of user funds.
Due to the bug, all Bancor Network users who did direct swap of their ERC20 assets shortly after the deployment of the smart contracts, made infinite approvals of their tokens to one of these smart contracts. And the smart contracts had a public method that allowed anyone to use these approvals to steal user funds.
It is still unsafe for users to hold tokens in the wallets before they cancel their infinite approvals. Users should use https://approved.zone to see all ERC20 approvals to the vulnerable Bancor smart contracts.
Rescue attempts
Apparently, the Bancor Team or some white hackers discovered this issue before anyone could begin draining user wallets and made attempts to rescue user funds by withdrawing them from user wallets.
Subsequently, two automatic front-runners joined in, helping the Bancor …
A critical bug in three recently deployed versions of the Bancor Network smart contract has led to a loss of user funds.
Due to the bug, all Bancor Network users who did direct swap of their ERC20 assets shortly after the deployment of the smart contracts, made infinite approvals of their tokens to one of these smart contracts. And the smart contracts had a public method that allowed anyone to use these approvals to steal user funds.
It is still unsafe for users to hold tokens in the wallets before they cancel their infinite approvals. Users should use https://approved.zone to see all ERC20 approvals to the vulnerable Bancor smart contracts.
Rescue attempts
Apparently, the Bancor Team or some white hackers discovered this issue before anyone could begin draining user wallets and made attempts to rescue user funds by withdrawing them from user wallets.
Subsequently, two automatic front-runners joined in, helping the Bancor …
IoC
03dbfdc1c043afbc24537bb12a9ead5779b242da26e9acdf00e7cc967e3b9d81
052ede4c2a04670be329db369c4563283391a3ea
14fa61fd261ab950b9ce07685180a9555ab5d665
1ad1099487b11879e6116ca1ceee486d1efa7b00
29142513a7926a326ee726f167cb611a8c2f579255dd9d0d8fc598a369836347
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923cab01e6a4639664aa64b76396eec0ea7d3a5f
9799b475dec92bd99bbdd943013325c36157f383
[email protected]
[email protected]
c07cfb0ad175bdb0c23b53e4fe8c8a61924d45760d0214c976dd84c656d7774b
dba03739b4a29594fd3c89881caffa1862ce4bd630ed5f849b9f22707332e59e
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f17e0025cfa680a1bd3e5c41ef44bf8d716724e0b626ba658b111451bf0e0815
https://approved.zone
https://explore.duneanalytics.com/public/dashboards/mEUEd9rQCPjeMkryEIgbtC0YUZwOXESQPTkkqdPX
052ede4c2a04670be329db369c4563283391a3ea
14fa61fd261ab950b9ce07685180a9555ab5d665
1ad1099487b11879e6116ca1ceee486d1efa7b00
29142513a7926a326ee726f167cb611a8c2f579255dd9d0d8fc598a369836347
5f58058C0eC971492166763c8C22632B583F667f
854b21385544c44121f912aedf4419335004f8ec
8dfeb86c7c962577ded19ab2050ac78654fea9f7
923cab01e6a4639664aa64b76396eec0ea7d3a5f
9799b475dec92bd99bbdd943013325c36157f383
[email protected]
[email protected]
c07cfb0ad175bdb0c23b53e4fe8c8a61924d45760d0214c976dd84c656d7774b
dba03739b4a29594fd3c89881caffa1862ce4bd630ed5f849b9f22707332e59e
e1c94a9af2d5685a1bee89b40d3e7f8e047b9d6a6ef8fc1075e956afd793ef45
f17e0025cfa680a1bd3e5c41ef44bf8d716724e0b626ba658b111451bf0e0815
https://approved.zone
https://explore.duneanalytics.com/public/dashboards/mEUEd9rQCPjeMkryEIgbtC0YUZwOXESQPTkkqdPX