Headline
GHSA-84x2-2qv6-qg56: Nervos CKB P2P DoS Attacks
The P2P protocols lack of rate limit. For example, in relay protocol, when a node receives a broadcasted tx_hashes, it will mark it in memory to avoid duplicated requests. code → .
It is easy to establish a DoS attach by generating random tx hashes.
Impact
It affects all nodes connected to the P2P network.
Workarounds
Apply rate limit on the data sent to CKB P2P port.
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- GitHub Advisory Database
- GitHub Reviewed
- GHSA-84x2-2qv6-qg56
Nervos CKB P2P DoS Attacks
Critical severity GitHub Reviewed Published Jun 5, 2020 in nervosnetwork/ckb • Updated Feb 2, 2024
Package
Affected versions
< 0.34.0
Description
The P2P protocols lack of rate limit. For example, in relay protocol, when a node receives a broadcasted tx_hashes, it will mark it in memory to avoid duplicated requests. code → .
It is easy to establish a DoS attach by generating random tx hashes.
Impact
It affects all nodes connected to the P2P network.
Workarounds
Apply rate limit on the data sent to CKB P2P port.
References
- GHSA-84x2-2qv6-qg56
- nervosnetwork/ckb@c5eb547
Published to the GitHub Advisory Database
Feb 2, 2024