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{
"id" : "CVE-2023-33241" ,
"sourceIdentifier" : "disclosures@halborn.com" ,
"published" : "2023-08-09T22:15:10.323" ,
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"lastModified" : "2024-11-21T08:05:13.413" ,
"vulnStatus" : "Modified" ,
2024-07-14 02:06:08 +00:00
"cveTags" : [ ] ,
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"descriptions" : [
{
"lang" : "en" ,
"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' private key shares."
}
] ,
"metrics" : {
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{
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"source" : "disclosures@halborn.com" ,
"type" : "Secondary" ,
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"cvssData" : {
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"vectorString" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N" ,
"baseScore" : 9.6 ,
"baseSeverity" : "CRITICAL" ,
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"attackVector" : "NETWORK" ,
"attackComplexity" : "LOW" ,
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"privilegesRequired" : "LOW" ,
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"userInteraction" : "NONE" ,
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"scope" : "CHANGED" ,
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"confidentialityImpact" : "HIGH" ,
"integrityImpact" : "HIGH" ,
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"availabilityImpact" : "NONE"
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} ,
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"exploitabilityScore" : 3.1 ,
"impactScore" : 5.8
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} ,
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{
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"source" : "nvd@nist.gov" ,
"type" : "Primary" ,
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"cvssData" : {
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"vectorString" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N" ,
"baseScore" : 9.1 ,
"baseSeverity" : "CRITICAL" ,
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"attackVector" : "NETWORK" ,
"attackComplexity" : "LOW" ,
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"privilegesRequired" : "NONE" ,
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"userInteraction" : "NONE" ,
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"scope" : "UNCHANGED" ,
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"confidentialityImpact" : "HIGH" ,
"integrityImpact" : "HIGH" ,
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"availabilityImpact" : "NONE"
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} ,
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"exploitabilityScore" : 3.9 ,
"impactScore" : 5.2
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}
]
} ,
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"weaknesses" : [
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"type" : "Primary" ,
"description" : [
{
"lang" : "en" ,
"value" : "CWE-74"
}
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"configurations" : [
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"nodes" : [
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"operator" : "OR" ,
"negate" : false ,
"cpeMatch" : [
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"vulnerable" : true ,
"criteria" : "cpe:2.3:a:gg18_project:gg18:-:*:*:*:*:*:*:*" ,
"matchCriteriaId" : "DB48800C-F964-43D1-B0A5-0A9E4FF0983D"
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"criteria" : "cpe:2.3:a:gg20_project:gg20:-:*:*:*:*:*:*:*" ,
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"references" : [
{
"url" : "https://eprint.iacr.org/2019/114.pdf" ,
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"source" : "disclosures@halborn.com" ,
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} ,
{
"url" : "https://eprint.iacr.org/2020/540.pdf" ,
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"source" : "disclosures@halborn.com" ,
"tags" : [
"Exploit" ,
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} ,
{
"url" : "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23" ,
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"source" : "disclosures@halborn.com" ,
"tags" : [
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} ,
{
"url" : "https://github.com/fireblocks-labs/safeheron-gg20-exploit-poc" ,
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"source" : "disclosures@halborn.com" ,
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} ,
{
"url" : "https://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/" ,
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"source" : "disclosures@halborn.com" ,
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} ,
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} ,
{
"url" : "https://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/" ,
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"tags" : [
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}
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}