CVE-2012-2143

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{}

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f\u00e1cil para los atacantes dependientes del contexto a la hora de obtener acceso a trav\u00e9s de un intento de autenticaci\u00f3n con una subcadena inicial con la contrase\u00f1a, tal y como se demuestra con una contrase\u00f1a Unicode."}], "id": "CVE-2012-2143", "lastModified": "2026-06-16T23:41:04.677", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-07-05T14:55:02.183", "references": [{"source": "secalert@redhat.com", "tags": ["Broken Link", 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{"acknowledgement": "Upstream acknowledges Joseph Bonneau and Rubin Xu as the original reporters.", "affected_release": [{"advisory": "RHSA-2012:1036", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "postgresql-0:8.1.23-5.el5_8", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-06-25T00:00:00Z"}, {"advisory": "RHSA-2012:1037", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "postgresql84-0:8.4.12-1.el5_8", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-06-25T00:00:00Z"}, {"advisory": "RHSA-2012:1047", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "php53-0:5.3.3-13.el5_8", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-06-27T00:00:00Z"}, {"advisory": "RHSA-2012:1037", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "postgresql-0:8.4.12-1.el6_2", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-06-25T00:00:00Z"}, {"advisory": "RHSA-2012:1046", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "php-0:5.3.3-14.el6_3", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-06-27T00:00:00Z"}], "bugzilla": {"description": "crypt(): DES encrypted password weakness", "id": "816956", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=816956"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N", "status": "verified"}, "details": ["The crypt_des (aka DES-based crypt) function in FreeBSD before 9.0-RELEASE-p2, as used in PHP, PostgreSQL, and other products, does not process the complete cleartext password if this password contains a 0x80 character, which makes it easier for context-dependent attackers to obtain access via an authentication attempt with an initial substring of the intended password, as demonstrated by a Unicode password."], "name": "CVE-2012-2143", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "php", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2012-05-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-2143\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-2143"], "statement": "This issue did not affect the version of php as shipped with Red Hat Enterprise Linux 5 as it did not include FreeSec's libcrypt cryptographic algorithms implementation yet. This issue was addressed in php53 package for Red Hat Enterprise Linux 5 via RHSA-2012:1047 and in php package for Red Hat Enterprise Linux 6 via RHSA-2012:1046.", "threat_severity": "Moderate"}

{}