{ "containers": { "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "datePublic": "2017-06-22T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2017-11-03T18:57:01.000Z", "orgId": "7cd4c57f-0a88-4dda-be53-70336b413766", "shortName": "duo" }, "references": [ { "name": "DSA-3979", "tags": [ "vendor-advisory", "x_refsource_DEBIAN" ], "url": "http://www.debian.org/security/2017/dsa-3979" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/jpadilla/pyjwt/pull/277" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security@duo.com", "ID": "CVE-2017-11424", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 PEM encoded format would be allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC KEY-----` which is not accounted for. This enables symmetric/asymmetric key confusion attacks against users using the PKCS1 PEM encoded public keys, which would allow an attacker to craft JWTs from scratch." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "DSA-3979", "refsource": "DEBIAN", "url": "http://www.debian.org/security/2017/dsa-3979" }, { "name": "https://github.com/jpadilla/pyjwt/pull/277", "refsource": "CONFIRM", "url": "https://github.com/jpadilla/pyjwt/pull/277" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T18:12:39.550Z" }, "title": "CVE Program Container", "references": [ { "name": "DSA-3979", "tags": [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred" ], "url": "http://www.debian.org/security/2017/dsa-3979" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/jpadilla/pyjwt/pull/277" } ] } ] }, "cveMetadata": { "assignerOrgId": "7cd4c57f-0a88-4dda-be53-70336b413766", "assignerShortName": "duo", "cveId": "CVE-2017-11424", "datePublished": "2017-08-24T16:00:00.000Z", "dateReserved": "2017-07-18T00:00:00.000Z", "dateUpdated": "2024-08-05T18:12:39.550Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }