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https://github.com/fkie-cad/nvd-json-data-feeds.git
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119 lines
4.7 KiB
JSON
119 lines
4.7 KiB
JSON
{
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"id": "CVE-2023-34459",
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"sourceIdentifier": "security-advisories@github.com",
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"published": "2023-06-16T23:15:08.817",
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"lastModified": "2023-06-26T18:50:28.553",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "OpenZeppelin Contracts is a library for smart contract development. Starting in version 4.7.0 and prior to version 4.9.2, when the `verifyMultiProof`, `verifyMultiProofCalldata`, `procesprocessMultiProof`, or `processMultiProofCalldat` functions are in use, it is possible to construct merkle trees that allow forging a valid multiproof for an arbitrary set of leaves.\n\nA contract may be vulnerable if it uses multiproofs for verification and the merkle tree that is processed includes a node with value 0 at depth 1 (just under the root). This could happen inadvertedly for balanced trees with 3 leaves or less, if the leaves are not hashed. This could happen deliberately if a malicious tree builder includes such a node in the tree.\n\nA contract is not vulnerable if it uses single-leaf proving (`verify`, `verifyCalldata`, `processProof`, or `processProofCalldata`), or if it uses multiproofs with a known tree that has hashed leaves. Standard merkle trees produced or validated with the @openzeppelin/merkle-tree library are safe.\n\nThe problem has been patched in version 4.9.2.\n\nSome workarounds are available. For those using multiproofs: When constructing merkle trees hash the leaves and do not insert empty nodes in your trees. Using the @openzeppelin/merkle-tree package eliminates this issue. Do not accept user-provided merkle roots without reconstructing at least the first level of the tree. Verify the merkle tree structure by reconstructing it from the leaves."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE",
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"baseScore": 5.9,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 2.2,
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"impactScore": 3.6
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},
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 1.6,
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"impactScore": 3.6
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}
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]
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},
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"weaknesses": [
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{
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"source": "security-advisories@github.com",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-354"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*",
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"versionStartIncluding": "4.7.0",
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"versionEndExcluding": "4.9.2",
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"matchCriteriaId": "60DC44CD-28DE-44B0-A762-9D2C8A9D5B8B"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*",
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"versionStartIncluding": "4.7.0",
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"versionEndExcluding": "4.9.2",
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"matchCriteriaId": "8AEC1B37-B265-430B-B6B6-434A5CFC6B04"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/OpenZeppelin/openzeppelin-contracts/commit/4d2383e17186be3e8ccf5a442e9686ecc7de1c55",
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"source": "security-advisories@github.com",
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"tags": [
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"Patch"
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]
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},
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{
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"url": "https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.9.2",
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"source": "security-advisories@github.com",
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"tags": [
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"Release Notes"
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]
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},
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{
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"url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-wprv-93r4-jj2p",
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"source": "security-advisories@github.com",
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"tags": [
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"Vendor Advisory"
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]
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}
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]
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} |