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in /websites/staging/httpd/trunk/content: ./ security/ security/json/", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apache.org%3E"}, {"name": "[httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-4979", "datePublished": "2016-07-06T14:00:00", "dateReserved": "2016-05-24T00:00:00", "dateUpdated": "2024-08-06T00:46:39.899Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

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2.4.18 hasta la versi\u00f3n 2.4.20, cuando mod_http2 y mod_ssl est\u00e1n activados, no reconoce adecuadamente la directiva \"SSLVerifyClient require\" para autorizaci\u00f3n de petici\u00f3n HTTP/2, lo que permite a atacantes remotos eludir las restricciones destinadas al acceso aprovechando la capacidad de enviar m\u00faltiples peticiones sobre una sola conexi\u00f3n y abortar una renegociaci\u00f3n."}], "id": "CVE-2016-4979", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": 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{"acknowledgement": "Red Hat would like to thank Apache Software Foundation for reporting this issue. Upstream acknowledges Erki Aring (Liewenthal Electronics Ltd) as the original reporter.", "affected_release": [{"advisory": "RHSA-2016:1420", "cpe": "cpe:/a:redhat:rhel_software_collections:2::el6", "package": "httpd24-httpd-0:2.4.18-11.el6", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 6", "release_date": "2016-07-18T00:00:00Z"}, {"advisory": "RHSA-2016:1420", "cpe": "cpe:/a:redhat:rhel_software_collections:2::el6", "package": "httpd24-httpd-0:2.4.18-11.el6", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS", "release_date": "2016-07-18T00:00:00Z"}, {"advisory": "RHSA-2016:1420", "cpe": "cpe:/a:redhat:rhel_software_collections:2::el6", "package": "httpd24-httpd-0:2.4.18-11.el6", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS", "release_date": "2016-07-18T00:00:00Z"}, {"advisory": "RHSA-2016:1420", "cpe": "cpe:/a:redhat:rhel_software_collections:2::el7", "package": "httpd24-httpd-0:2.4.18-11.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2016-07-18T00:00:00Z"}, {"advisory": "RHSA-2016:1420", "cpe": "cpe:/a:redhat:rhel_software_collections:2::el7", "package": "httpd24-httpd-0:2.4.18-11.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS", "release_date": "2016-07-18T00:00:00Z"}, {"advisory": "RHSA-2016:1420", "cpe": "cpe:/a:redhat:rhel_software_collections:2::el7", "package": "httpd24-httpd-0:2.4.18-11.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS", "release_date": "2016-07-18T00:00:00Z"}], "bugzilla": {"description": "httpd: X509 client certificate authentication bypass using HTTP/2", "id": "1352476", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1352476"}, "csaw": false, "cvss": {"cvss_base_score": "5.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "status": "verified"}, "cvss3": {"cvss3_base_score": "9.1", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-287", "details": ["The Apache HTTP Server 2.4.18 through 2.4.20, when mod_http2 and mod_ssl are enabled, does not properly recognize the \"SSLVerifyClient require\" directive for HTTP/2 request authorization, which allows remote attackers to bypass intended access restrictions by leveraging the ability to send multiple requests over a single connection and aborting a renegotiation.", "A flaw was found in the way httpd performed client authentication using X.509 client certificates. When the HTTP/2 protocol was enabled, a remote attacker could use this flaw to access resources protected by certificate authentication without providing a valid client certificate."], "name": "CVE-2016-4979", "package_state": [{"cpe": "cpe:/a:redhat:directory_server:8", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat Directory Server 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Not affected", "package_name": "jbcs-httpd24-httpd", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat JBoss Enterprise Application Platform 5"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:6", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat JBoss Enterprise Application Platform 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:6", "fix_state": "Not affected", "package_name": "httpd22", "product_name": "Red Hat JBoss Enterprise Application Platform 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat JBoss Enterprise Web Server 1"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:2", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat JBoss Enterprise Web Server 2"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat JBoss Enterprise Web Server 3"}], "public_date": "2016-07-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-4979\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-4979\nhttp://httpd.apache.org/security/vulnerabilities_24.html#2.4.23"], "threat_severity": "Moderate"}