nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, two peer-facing consensus request handlers assume that the history index is always available and call blockchain.history_store.history_index().unwrap() directly. That assumption is false by construction. HistoryStoreProxy::history_index() explicitly returns None for the valid HistoryStoreProxy::WithoutIndex state. when a full node is syncing or otherwise running without the history index, a remote peer can send RequestTransactionsProof or RequestTransactionReceiptsByAddress and trigger an Option::unwrap() panic on the request path.
This issue has been patched in version 1.3.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/nimiq/core-rs-albatross/commit/0e5c90a6c75b722f3d6091769776a…
security-advisories@github.com
https://github.com/nimiq/core-rs-albatross/pull/3667
security-advisories@github.com
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0
security-advisories@github.com
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-xr78-2jhh-9…
security-advisories@github.com