2 lines
5.2 KiB
JSON
2 lines
5.2 KiB
JSON
{"affected":[{"affectedData":[{"product":"sjcl","vendor":"n/a","versions":[{"lessThan":"1.0.9","status":"affected","version":"0","versionType":"semver"}]},{"product":"org.webjars.npm:sjcl","vendor":"n/a","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"semver"}]}],"source":"report@snyk.io"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:bitwiseshiftleft:stanford_javascript_crypto_library:*:*:*:*:*:node.js:*:*","matchCriteriaId":"2047B9DC-A7EE-46A6-A484-066411066757","versionEndIncluding":"1.0.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Versions of the package sjcl before 1.0.9 are vulnerable to Improper Verification of Cryptographic Signature due to missing point-on-curve validation in sjcl.ecc.basicKey.publicKey(). An attacker can recover a victim's ECDH private key by sending crafted off-curve public keys and observing ECDH outputs. The dhJavaEc() function directly returns the raw x-coordinate of the scalar multiplication result (no hashing), providing a plaintext oracle without requiring any decryption feedback."},{"lang":"es","value":"Todas las versiones del paquete sjcl son vulnerables a la Verificación Incorrecta de Firma Criptográfica debido a la falta de validación de punto en curva en sjcl.ecc.basicKey.publicKey(). Un atacante puede recuperar la clave privada ECDH de una víctima enviando claves públicas fuera de curva manipuladas y observando las salidas ECDH. La función dhJavaEc() devuelve directamente la coordenada x sin procesar del resultado de la multiplicación escalar (sin hashing), proporcionando un oráculo de texto plano sin requerir ninguna retroalimentación de descifrado."}],"id":"CVE-2026-4258","lastModified":"2026-07-28T16:18:22.213","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"report@snyk.io","type":"Secondary"}],"cvssMetricV40":[{"cvssData":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","availabilityRequirement":"NOT_DEFINED","baseScore":7.7,"baseSeverity":"HIGH","confidentialityRequirement":"NOT_DEFINED","exploitMaturity":"PROOF_OF_CONCEPT","integrityRequirement":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"source":"report@snyk.io","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-4258","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-03-17T13:22:02.709429Z","version":"2.0.3"}}]},"published":"2026-03-17T06:16:18.590","references":[{"source":"report@snyk.io","tags":["Exploit","Mitigation","Third Party Advisory"],"url":"https://gist.github.com/Kr0emer/2560f98edb10b0b34f2438cd63913c47"},{"source":"report@snyk.io","tags":["Broken Link"],"url":"https://github.com/bitwiseshiftleft/sjcl/blob/master/core/ecc.js%23L454-L461"},{"source":"report@snyk.io","tags":["Patch"],"url":"https://github.com/bitwiseshiftleft/sjcl/commit/ee307459972442a17beebc29dc331fffd8aff796"},{"source":"report@snyk.io","url":"https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15751243"},{"source":"report@snyk.io","tags":["Exploit","Third Party Advisory"],"url":"https://security.snyk.io/vuln/SNYK-JS-SJCL-15369617"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Mitigation","Third Party Advisory"],"url":"https://gist.github.com/Kr0emer/2560f98edb10b0b34f2438cd63913c47"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Third Party Advisory"],"url":"https://security.snyk.io/vuln/SNYK-JS-SJCL-15369617"}],"sourceIdentifier":"report@snyk.io","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-347"}],"source":"report@snyk.io","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-325"}],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}]}
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