Headline
CVE-2022-28936: A malicious node may fake a proposal's header when he is the leader and some transactions cannot be processed · Issue #2307 · FISCO-BCOS/FISCO-BCOS
FISCO-BCOS release-3.0.0-rc2 was discovered to contain an issue where a malicious node can trigger an integer overflow and cause a Denial of Service (DoS) via an unusually large viewchange message packet.
Describe the bug
I setup a group of 10 nodes under 3.0.0-rc2 version. One of the nodes is a malicious one and tries to modify some fields when it sends out some packages. Then I use the following command to test the system:
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceOk 500000 5000 group
Then some transactions cannot be processed successfully.
To Reproduce
Steps to reproduce the behavior:
Expected behavior
All the transactions should be processed correctly.
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FISCO-BCOS release-3.0.0-rc2 was discovered to contain an issue where a malicious node, via an invalid proposal with an invalid header, will cause normal nodes to stop producing new blocks and processing new clients' requests.
FISCO-BCOS release-3.0.0-rc2 was discovered to contain an issue where a malicious node can trigger an integer overflow and cause a Denial of Service (DoS) via an unusually large viewchange message packet.