Search criteria
1 vulnerability by gg20_project
CVE-2023-33241 (GCVE-0-2023-33241)
Vulnerability from cvelistv5 – Published: 2023-08-09 21:00 – Updated: 2024-10-10 14:37
VLAI?
Summary
Crypto wallets implementing the GG18 or GG20 TSS protocol might allow an attacker to extract a full ECDSA private key by injecting a malicious pallier key and cheating in the range proof. Depending on the Beta parameters chosen in the protocol implementation, the attack might require 16 signatures or more fully exfiltrate the other parties' private key shares.
Severity ?
9.6 (Critical)
CWE
- Private Key Exfiltration
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| GG TSS Implementations | Wallet |
Affected:
18
Affected: 20 |
Credits
Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T15:39:36.145Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/fireblocks-labs/safeheron-gg20-exploit-poc"
},
{
"tags": [
"x_transferred"
],
"url": "https://eprint.iacr.org/2019/114.pdf"
},
{
"tags": [
"x_transferred"
],
"url": "https://eprint.iacr.org/2020/540.pdf"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-33241",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-10T14:37:38.704288Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-10T14:37:44.417Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wallet",
"vendor": "GG TSS Implementations",
"versions": [
{
"status": "affected",
"version": "18"
},
{
"status": "affected",
"version": "20"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov"
}
],
"datePublic": "2023-08-09T21:15:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Crypto wallets implementing the GG18 or GG20 TSS protocol might allow an attacker to extract a full ECDSA private key by injecting a malicious pallier key and cheating in the range proof. Depending on the Beta parameters chosen in the protocol implementation, the attack might require 16 signatures or more fully exfiltrate the other parties\u0027 private key shares."
}
],
"value": "Crypto wallets implementing the GG18 or GG20 TSS protocol might allow an attacker to extract a full ECDSA private key by injecting a malicious pallier key and cheating in the range proof. Depending on the Beta parameters chosen in the protocol implementation, the attack might require 16 signatures or more fully exfiltrate the other parties\u0027 private key shares."
}
],
"impacts": [
{
"capecId": "CAPEC-474",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-474 Signature Spoofing by Key Theft"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Private Key Exfiltration",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-08-09T21:39:44.055Z",
"orgId": "79d7e77b-4bd9-4e64-ae2c-02965b1d2b73",
"shortName": "Halborn"
},
"references": [
{
"url": "https://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/"
},
{
"url": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23"
},
{
"url": "https://github.com/fireblocks-labs/safeheron-gg20-exploit-poc"
},
{
"url": "https://eprint.iacr.org/2019/114.pdf"
},
{
"url": "https://eprint.iacr.org/2020/540.pdf"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "GG18 / GG20 TSS Beta Parameter Vulnerability",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "79d7e77b-4bd9-4e64-ae2c-02965b1d2b73",
"assignerShortName": "Halborn",
"cveId": "CVE-2023-33241",
"datePublished": "2023-08-09T21:00:20.582Z",
"dateReserved": "2023-05-19T15:51:23.095Z",
"dateUpdated": "2024-10-10T14:37:44.417Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}