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m\u00e1s f\u00e1cil para atacantes remotos realizar ataques de recuperaci\u00f3n de texto claro a trav\u00e9s de an\u00e1lisis estad\u00edstico de texto cifrado en un gran n\u00famero de sesiones que utilizan el mismo texto claro."}], "id": "CVE-2013-2566", "lastModified": "2020-11-23T19:48:41.097", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2013-03-15T21:55:01.047", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://blog.cryptographyengineering.com/2013/03/attack-of-week-rc4-is-kind-of-broken-in.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://cr.yp.to/talks/2013.03.12/slides.pdf"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "http://marc.info/?l=bugtraq&m=143039468003789&w=2"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://my.opera.com/securitygroup/blog/2013/03/20/on-the-precariousness-of-rc4"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://security.gentoo.org/glsa/glsa-201406-19.xml"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.isg.rhul.ac.uk/tls/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.mozilla.org/security/announce/2013/mfsa2013-103.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.opera.com/docs/changelogs/unified/1215/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.opera.com/security/advisory/1046"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/58796"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-2031-1"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-2032-1"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05289935"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05336888"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201504-01"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-326"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "SSL/TLS: Attack against RC4 stream cipher", "id": "921947", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=921947"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "status": "draft"}, "details": ["The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext."], "name": "CVE-2013-2566", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "gnutls", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "nss", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "openssl", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "gnutls", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "nss", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "openssl", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2013-03-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2013-2566\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-2566"], "statement": "This flaw is related to the design of the RC4 protocol and not its implementation. More details and a possible work around is mentioned in https://bugzilla.redhat.com/show_bug.cgi?id=921947#c8. Therefore there are no plans to correct this issue in Red Hat Enterprise Linux 5 and 6.", "threat_severity": "Moderate"}