gsd-2023-23940
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. As a result, any contract using `is_valid_eth_signature` from the account library (such as the `EthAccount` preset) is vulnerable to a malicious sequencer. Specifically, the malicious sequencer would be able to bypass signature validation to impersonate an instance of these accounts. The issue has been patched in 0.6.1.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-23940",
"id": "GSD-2023-23940"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
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],
"details": "OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. As a result, any contract using `is_valid_eth_signature` from the account library (such as the `EthAccount` preset) is vulnerable to a malicious sequencer. Specifically, the malicious sequencer would be able to bypass signature validation to impersonate an instance of these accounts. The issue has been patched in 0.6.1.",
"id": "GSD-2023-23940",
"modified": "2023-12-13T01:20:49.652180Z",
"schema_version": "1.4.0"
}
},
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"ID": "CVE-2023-23940",
"STATE": "PUBLIC"
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"product_name": "cairo-contracts",
"version": {
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"version_affected": "=",
"version_value": "\u003e= 0.2.0, \u003c 0.6.1"
}
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"data_version": "4.0",
"description": {
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"value": "OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. As a result, any contract using `is_valid_eth_signature` from the account library (such as the `EthAccount` preset) is vulnerable to a malicious sequencer. Specifically, the malicious sequencer would be able to bypass signature validation to impersonate an instance of these accounts. The issue has been patched in 0.6.1."
}
]
},
"impact": {
"cvss": [
{
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
"version": "3.1"
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"description": [
{
"cweId": "CWE-347",
"lang": "eng",
"value": "CWE-347: Improper Verification of Cryptographic Signature"
}
]
},
{
"description": [
{
"cweId": "CWE-345",
"lang": "eng",
"value": "CWE-345: Insufficient Verification of Data Authenticity"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-626q-v9j4-mcp4",
"refsource": "MISC",
"url": "https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-626q-v9j4-mcp4"
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{
"name": "https://github.com/OpenZeppelin/cairo-contracts/pull/542/commits/6d4cb750478fca2fd916f73297632f899aca9299",
"refsource": "MISC",
"url": "https://github.com/OpenZeppelin/cairo-contracts/pull/542/commits/6d4cb750478fca2fd916f73297632f899aca9299"
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},
"source": {
"advisory": "GHSA-626q-v9j4-mcp4",
"discovery": "UNKNOWN"
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"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=0.2.0 \u003c0.6.1",
"affected_versions": "All versions starting from 0.2.0 before 0.6.1",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-347",
"CWE-937"
],
"date": "2023-02-13",
"description": "OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. As a result, any contract using `is_valid_eth_signature` from the account library (such as the `EthAccount` preset) is vulnerable to a malicious sequencer. Specifically, the malicious sequencer would be able to bypass signature validation to impersonate an instance of these accounts. The issue has been patched in 0.6.1.",
"fixed_versions": [
"0.6.1"
],
"identifier": "CVE-2023-23940",
"identifiers": [
"CVE-2023-23940",
"GHSA-626q-v9j4-mcp4"
],
"not_impacted": "All versions before 0.2.0, all versions starting from 0.6.1",
"package_slug": "npm/@openzeppelin/contracts",
"pubdate": "2023-02-03",
"solution": "Upgrade to version 0.6.1 or above.",
"title": "Improper Verification of Cryptographic Signature",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2023-23940",
"https://github.com/OpenZeppelin/cairo-contracts/pull/542/commits/6d4cb750478fca2fd916f73297632f899aca9299",
"https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-626q-v9j4-mcp4"
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"uuid": "96c7ae18-b488-4ff2-85ea-49f1f082b080"
},
{
"affected_range": "\u003e=0.2.0,\u003c0.6.1",
"affected_versions": "All versions starting from 0.2.0 before 0.6.1",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2023-02-02",
"description": "### Cause\n`is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. \n\n### Impact\nAs a result, any contract using `is_valid_eth_signature` from the account library (such as the `EthAccount` preset) is vulnerable to a malicious sequencer. Specifically, the malicious sequencer would be able to bypass signature validation to impersonate an instance of these accounts.\n\n### Risk\nIn order to exploit this vulnerability, it is required to control a sequencer or prover since they\u0027re the ones executing the hints, being able to inject incorrect keccak results.\n\nToday StarkWare is the only party running both a prover or a sequencer, greatly reducing the risk of exploit.\n\n### Patches\nThe issue has been patched in 0.6.1.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [the Contracts for Cairo repository](https://github.com/OpenZeppelin/cairo-contracts/issues/new/choose)\n * Email us at [security@openzeppelin.com](mailto:security@openzeppelin.com)",
"fixed_versions": [
"0.6.1"
],
"identifier": "GMS-2023-240",
"identifiers": [
"GHSA-626q-v9j4-mcp4",
"GMS-2023-240",
"CVE-2023-23940"
],
"not_impacted": "All versions before 0.2.0, all versions starting from 0.6.1",
"package_slug": "pypi/openzeppelin-cairo-contracts",
"pubdate": "2023-02-02",
"solution": "Upgrade to version 0.6.1 or above.",
"title": "OpenZeppelin Contracts contains Improper Verification of Cryptographic Signature",
"urls": [
"https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-626q-v9j4-mcp4",
"https://github.com/advisories/GHSA-626q-v9j4-mcp4"
],
"uuid": "0fd7c895-c9d2-4bcd-949f-59a5ae4b1f3f"
}
]
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"nvd.nist.gov": {
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"cpe23Uri": "cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:cairo:*:*",
"cpe_name": [],
"versionEndExcluding": "0.6.1",
"versionStartIncluding": "0.2.0",
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"name": "https://github.com/OpenZeppelin/cairo-contracts/pull/542/commits/6d4cb750478fca2fd916f73297632f899aca9299",
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"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.6,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-02-13T15:11Z",
"publishedDate": "2023-02-03T20:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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