CVE-2021-29444
Vulnerability from cvelistv5
Published
2021-04-16 21:45
Modified
2024-08-03 22:02
Severity ?
EPSS score ?
Summary
Padding Oracle Attack due to Observable Timing Discrepancy in jose-browser-runtime
References
▼ | URL | Tags | |
---|---|---|---|
security-advisories@github.com | https://github.com/panva/jose/security/advisories/GHSA-94hh-pjjg-rwmr | Third Party Advisory | |
security-advisories@github.com | https://www.npmjs.com/package/jose-browser-runtime | Product, Third Party Advisory |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T22:02:51.935Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/panva/jose/security/advisories/GHSA-94hh-pjjg-rwmr" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.npmjs.com/package/jose-browser-runtime" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "jose", "vendor": "panva", "versions": [ { "status": "affected", "version": "\u003c 3.11.4" } ] } ], "descriptions": [ { "lang": "en", "value": "jose-browser-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `\u003e=3.11.4`. Users should upgrade to `^3.11.4`." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-203", "description": "{\"CWE-203\":\"Observable Discrepancy\"}", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-04-16T21:45:16", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/panva/jose/security/advisories/GHSA-94hh-pjjg-rwmr" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.npmjs.com/package/jose-browser-runtime" } ], "source": { "advisory": "GHSA-94hh-pjjg-rwmr", "discovery": "UNKNOWN" }, "title": "Padding Oracle Attack due to Observable Timing Discrepancy in jose-browser-runtime", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-29444", "STATE": "PUBLIC", "TITLE": "Padding Oracle Attack due to Observable Timing Discrepancy in jose-browser-runtime" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "jose", "version": { "version_data": [ { "version_value": "\u003c 3.11.4" } ] } } ] }, "vendor_name": "panva" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "jose-browser-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `\u003e=3.11.4`. Users should upgrade to `^3.11.4`." } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "{\"CWE-203\":\"Observable Discrepancy\"}" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/panva/jose/security/advisories/GHSA-94hh-pjjg-rwmr", "refsource": "CONFIRM", "url": "https://github.com/panva/jose/security/advisories/GHSA-94hh-pjjg-rwmr" }, { "name": "https://www.npmjs.com/package/jose-browser-runtime", "refsource": "MISC", "url": "https://www.npmjs.com/package/jose-browser-runtime" } ] }, "source": { "advisory": "GHSA-94hh-pjjg-rwmr", "discovery": "UNKNOWN" } } } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-29444", "datePublished": "2021-04-16T21:45:16", "dateReserved": "2021-03-30T00:00:00", "dateUpdated": "2024-08-03T22:02:51.935Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-29444\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-04-16T22:15:13.953\",\"lastModified\":\"2023-03-21T13:18:38.997\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"jose-browser-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `\u003e=3.11.4`. Users should upgrade to `^3.11.4`.\"},{\"lang\":\"es\",\"value\":\"jose-browser-runtime es un paquete npm que proporciona una serie de funciones criptogr\u00e1ficas.\u0026#xa0;En versiones anteriores a 3.11.4, el algoritmo de descifrado AES_CBC_HMAC_SHA2 (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) siempre ejecutaba tanto la comprobaci\u00f3n de etiquetas HMAC como el descifrado CBC, si comet\u00eda un fallo \\\"JWEDecryptionFailed\\\" ser\u00eda lanzado.\u0026#xa0;Pero una posible diferencia observable en el tiempo cuando se producir\u00eda un error de relleno al descifrar el texto cifrado crea un padding oracle y un adversario podr\u00eda ser capaz de hacer uso de ese oracle para descifrar datos sin conocer la clave de descifrado al emitir un promedio de 128*b llamadas al padding oracle (donde b es el n\u00famero de bytes en el bloque de texto cifrado).\u0026#xa0;Se lanz\u00f3 un parche que garantiza que la etiqueta HMAC es comprobada antes de llevar a cabo el descifrado CBC.\u0026#xa0;Las versiones corregidas son \\\"superiores o iguales a 3.11.4\\\".\u0026#xa0;Los usuarios deben actualizar a \\\"^ 3.11.4\\\"\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":4.3},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-203\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jose-node-cjs-runtime_project:jose-node-cjs-runtime:*:*:*:*:*:node.js:*:*\",\"versionEndExcluding\":\"3.11.4\",\"matchCriteriaId\":\"03D23205-6974-4025-A286-1F56B7EE9620\"}]}]}],\"references\":[{\"url\":\"https://github.com/panva/jose/security/advisories/GHSA-94hh-pjjg-rwmr\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.npmjs.com/package/jose-browser-runtime\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\",\"Third Party Advisory\"]}]}}" } }
Loading...
Loading...
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.