CVE-2012-2122

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5.1.x anterior a 5.1.63, 5.5.x anterior a 5.5.24, y 5.6.x anterior a 5.6.6, y MariaDB 5.1.x anterior a 5.1.62, 5.2.x anterior a 5.2.12, 5.3.x anterior a 5.3.6, y 5.5.x anterior a 5.5.23, cuando se ejecuta en determinados entornos con determinadas implementaciones de la funci\u00f3n memcmp, permite que atacantes remotos eviten la autenticaci\u00f3n utilizando repetidamente la misma contrase\u00f1a incorrecta, lo que eventualmente provoca una comparaci\u00f3n de token con resultado de \u00e9xito en una variable de retorno no validada"}], "id": "CVE-2012-2122", "lastModified": "2026-06-16T23:41:02.110", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-06-26T18:55:05.083", "references": [{"source": "secalert@redhat.com", "tags": ["Exploit"], "url": "http://bugs.mysql.com/bug.php?id=64884"}, {"source": "secalert@redhat.com", "url": "http://kb.askmonty.org/en/mariadb-5162-release-notes/"}, {"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00007.html"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://seclists.org/oss-sec/2012/q2/493"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/49417"}, {"source": "secalert@redhat.com", "url": "http://secunia.com/advisories/53372"}, {"source": "secalert@redhat.com", "url": "http://security.gentoo.org/glsa/glsa-201308-06.xml"}, {"source": "secalert@redhat.com", "url": "http://securitytracker.com/id?1027143"}, {"source": "secalert@redhat.com", "url": "http://www.exploit-db.com/exploits/19092"}, {"source": "secalert@redhat.com", "tags": ["Exploit"], "url": "http://www.securityfocus.com/bid/53911"}, {"source": "secalert@redhat.com", "tags": ["Exploit"], "url": "https://community.rapid7.com/community/metasploit/blog/2012/06/11/cve-2012-2122-a-tragically-comedic-security-flaw-in-mysql"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://bugs.mysql.com/bug.php?id=64884"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://kb.askmonty.org/en/mariadb-5162-release-notes/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://seclists.org/oss-sec/2012/q2/493"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/49417"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/53372"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://security.gentoo.org/glsa/glsa-201308-06.xml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://securitytracker.com/id?1027143"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.exploit-db.com/exploits/19092"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://www.securityfocus.com/bid/53911"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://community.rapid7.com/community/metasploit/blog/2012/06/11/cve-2012-2122-a-tragically-comedic-security-flaw-in-mysql"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2012:1462", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "mysql-0:5.1.66-1.el6_3", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-11-14T00:00:00Z"}], "bugzilla": {"description": "mysql: incorrect type cast in check_scramble() leading to authentication bypass", "id": "814605", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=814605"}, "csaw": false, "cvss": {"cvss_base_score": "7.5", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "status": "verified"}, "cwe": "CWE-704->CWE-393->CWE-305", "details": ["sql/password.c in Oracle MySQL 5.1.x before 5.1.63, 5.5.x before 5.5.24, and 5.6.x before 5.6.6, and MariaDB 5.1.x before 5.1.62, 5.2.x before 5.2.12, 5.3.x before 5.3.6, and 5.5.x before 5.5.23, when running in certain environments with certain implementations of the memcmp function, allows remote attackers to bypass authentication by repeatedly authenticating with the same incorrect password, which eventually causes a token comparison to succeed due to an improperly-checked return value."], "name": "CVE-2012-2122", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2012-06-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-2122\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-2122"], "statement": "This issue does not affect MySQL as shipped with Red Hat Enterprise Linux 4, 5, or 6. For a technical explanation please see https://bugzilla.redhat.com/show_bug.cgi?id=814605#c19", "threat_severity": "Important"}

{}