{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-46132","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2023-10-16T17:51:35.573Z","datePublished":"2023-11-14T20:23:15.643Z","dateUpdated":"2024-08-29T20:19:53.164Z"},"containers":{"cna":{"title":"Crosslinking transaction attack in hyperledger/fabric","problemTypes":[{"descriptions":[{"cweId":"CWE-362","lang":"en","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/hyperledger/fabric/security/advisories/GHSA-v9w2-543f-h69m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/hyperledger/fabric/security/advisories/GHSA-v9w2-543f-h69m"}],"affected":[{"vendor":"hyperledger","product":"fabric","versions":[{"version":">= 1.0.0, < 2.2.14","status":"affected"},{"version":">= 2.3.0, < 2.5.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2023-11-14T20:23:15.643Z"},"descriptions":[{"lang":"en","value":"Hyperledger Fabric is an open source permissioned distributed ledger framework. Combining two molecules to one another, called \"cross-linking\" results in a molecule with a chemical formula that is composed of all atoms of the original two molecules. In Fabric, one can take a block of transactions and cross-link the transactions in a way that alters the way the peers parse the transactions. If a first peer receives a block B and a second peer receives a block identical to B but with the transactions being cross-linked, the second peer will parse transactions in a different way and thus its world state will deviate from the first peer. Orderers or peers cannot detect that a block has its transactions cross-linked, because there is a vulnerability in the way Fabric hashes the transactions of blocks. It simply and naively concatenates them, which is insecure and lets an adversary craft a \"cross-linked block\" (block with cross-linked transactions) which alters the way peers process transactions. For example, it is possible to select a transaction and manipulate a peer to completely avoid processing it, without changing the computed hash of the block. Additional validations have been added in v2.2.14 and v2.5.5 to detect potential cross-linking issues before processing blocks. Users are advised to upgrade. There are no known workarounds for this vulnerability."}],"source":{"advisory":"GHSA-v9w2-543f-h69m","discovery":"UNKNOWN"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T20:37:39.905Z"},"title":"CVE Program Container","references":[{"name":"https://github.com/hyperledger/fabric/security/advisories/GHSA-v9w2-543f-h69m","tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/hyperledger/fabric/security/advisories/GHSA-v9w2-543f-h69m"}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-29T20:19:34.464828Z","id":"CVE-2023-46132","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-08-29T20:19:53.164Z"}}]}}