Improper Access Control Affecting fr.acinq.eclair:eclair-core_2.11 Open this link in a new tab package, versions [,0.3.1)
Proof of concept
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3 Feb 2020
31 Jan 2020
How to fix?
fr.acinq.eclair:eclair-core_2.11 to version 0.3.1 or higher.
fr.acinq.eclair:eclair-core_2.11 is a scala implementation of the Lightning Network.
Affected versions of this package are vulnerable to Improper Access Control. A lightning node accepting a channel must check that the funding transaction output does indeed open the channel proposed. Otherwise an attacker can claim to open a channel but either not pay to the peer, or not pay the full amount. Once that transaction reaches the minimum depth, it can spend funds from the channel. The victim will only notice when it tries to close the channel and none of the commitment or mutual close transactions it has are valid.
NOTE: README.md states "it is beta-quality software and don't put too much money in it."