{"containers":{"cna":{"affected":[{"product":"shrine","vendor":"shrinerb","versions":[{"status":"affected","version":"< 3.3.0"}]}],"descriptions":[{"lang":"en","value":"In Shrine before version 3.3.0, when using the `derivation_endpoint` plugin, it's possible for the attacker to use a timing attack to guess the signature of the derivation URL. The problem has been fixed by comparing sent and calculated signature in constant time, using `Rack::Utils.secure_compare`. Users using the `derivation_endpoint` plugin are urged to upgrade to Shrine 3.3.0 or greater. A possible workaround is provided in the linked advisory."}],"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-208","description":"{\"CWE-208\":\"Observable Timing Discrepancy\"}","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-203","description":"{\"CWE-203\":\"Observable Differences in Behavior to Error Inputs\"}","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2020-10-05T18:30:13.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp"},{"tags":["x_refsource_MISC"],"url":"https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0"}],"source":{"advisory":"GHSA-5jjv-x4fq-qjwp","discovery":"UNKNOWN"},"title":"Timing attack in Shrine","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2020-15237","STATE":"PUBLIC","TITLE":"Timing attack in Shrine"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"shrine","version":{"version_data":[{"version_value":"< 3.3.0"}]}}]},"vendor_name":"shrinerb"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In Shrine before version 3.3.0, when using the `derivation_endpoint` plugin, it's possible for the attacker to use a timing attack to guess the signature of the derivation URL. The problem has been fixed by comparing sent and calculated signature in constant time, using `Rack::Utils.secure_compare`. Users using the `derivation_endpoint` plugin are urged to upgrade to Shrine 3.3.0 or greater. A possible workaround is provided in the linked advisory."}]},"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-208\":\"Observable Timing Discrepancy\"}"}]},{"description":[{"lang":"eng","value":"{\"CWE-203\":\"Observable Differences in Behavior to Error Inputs\"}"}]}]},"references":{"reference_data":[{"name":"https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp","refsource":"CONFIRM","url":"https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp"},{"name":"https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0","refsource":"MISC","url":"https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0"}]},"source":{"advisory":"GHSA-5jjv-x4fq-qjwp","discovery":"UNKNOWN"}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T13:08:22.833Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0"}]}]},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2020-15237","datePublished":"2020-10-05T18:30:14.000Z","dateReserved":"2020-06-25T00:00:00.000Z","dateUpdated":"2024-08-04T13:08:22.833Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}