CVE-2019-5440

{"containers": {"cna": {"affected": [{"product": "Revive Adserver", "vendor": "Revive", "versions": [{"status": "affected", "version": "Fixed in 4.2.1"}]}], "datePublic": "2019-05-21T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potential authentication bypass attack if an attacker exploits the password recovery functionality. In lib/OA/Dal/PasswordRecovery.php, the function generateRecoveryId() generates a password reset token that relies on the PHP uniqid function and consequently depends only on the current server time, which is often visible in an HTTP Date header."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-338", "description": "Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CWE-338)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2019-05-30T14:07:45.000Z", "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://hackerone.com/reports/576504"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "support@hackerone.com", "ID": "CVE-2019-5440", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Revive Adserver", "version": {"version_data": [{"version_value": "Fixed in 4.2.1"}]}}]}, "vendor_name": "Revive"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potential authentication bypass attack if an attacker exploits the password recovery functionality. In lib/OA/Dal/PasswordRecovery.php, the function generateRecoveryId() generates a password reset token that relies on the PHP uniqid function and consequently depends only on the current server time, which is often visible in an HTTP Date header."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CWE-338)"}]}]}, "references": {"reference_data": [{"name": "https://hackerone.com/reports/576504", "refsource": "MISC", "url": "https://hackerone.com/reports/576504"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T19:54:53.582Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://hackerone.com/reports/576504"}]}]}, "cveMetadata": {"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "assignerShortName": "hackerone", "cveId": "CVE-2019-5440", "datePublished": "2019-05-28T18:41:05.000Z", "dateReserved": "2019-01-04T00:00:00.000Z", "dateUpdated": "2024-08-04T19:54:53.582Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Revive Adserver", "vendor": "Revive", "versions": [{"status": "affected", "version": "Fixed in 4.2.1"}]}], "source": "support@hackerone.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*", "matchCriteriaId": "D7EECFFC-D1A0-42DD-AD60-85A922AA9159", "versionEndExcluding": "4.2.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potential authentication bypass attack if an attacker exploits the password recovery functionality. In lib/OA/Dal/PasswordRecovery.php, the function generateRecoveryId() generates a password reset token that relies on the PHP uniqid function and consequently depends only on the current server time, which is often visible in an HTTP Date header."}, {"lang": "es", "value": "El uso de PRNG (Generador de Numeros PseudoRandom) PRNG criptogr\u00e1ficamente d\u00e9bil en la generaci\u00f3n de token de recuperaci\u00f3n de contrase\u00f1a de Revive Adserver anterior a la versi\u00f3n 4.2.1, provoca un potencial ataque de omisi\u00f3n de autenticaci\u00f3n si un atacante explota la funcionalidad de recuperaci\u00f3n de contrase\u00f1a (password recovery)."}], "id": "CVE-2019-5440", "lastModified": "2026-06-17T02:37:41.660", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-05-28T19:29:06.190", "references": [{"source": "support@hackerone.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://hackerone.com/reports/576504"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://hackerone.com/reports/576504"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-338"}], "source": "support@hackerone.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-338"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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