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CVSS: 4.3EPSS: 0%CPEs: 18EXPL: 0

The ap_some_auth_required function in server/request.c in the Apache HTTP Server 2.4.x before 2.4.14 does not consider that a Require directive may be associated with an authorization setting rather than an authentication setting, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging the presence of a module that relies on the 2.2 API behavior. Vulnerabilidad en la función ap_some_auth_required en ap_some_auth_required del Servidor HTTP Apache en su versión 2.4.x anteriores a la 2.4.14 no considera que una directiva Require puede estar asociada con el establecimiento de una autorización en lugar de un ajuste de autenticación lo cual permite a atacantes remotos evadir las restricciones destinadas al acceso en circunstancias oportunas mediante el aprovechamiento de la presencia de un módulo que se basa en el comportamiento en la API 2.2. It was discovered that in httpd 2.4, the internal API function ap_some_auth_required() could incorrectly indicate that a request was authenticated even when no authentication was used. An httpd module using this API function could consequently allow access that should have been denied. • http://httpd.apache.org/security/vulnerabilities_24.html http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00002.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://lists.opensuse.org/opensuse-updates/2015-10/msg00011.html http://rhn.redhat.com/errata/RHSA-2015-1666.html http://rhn.redhat.com/errata/RHSA-2015-1667.html http://rhn.redhat.com/errata/RHSA-2016-2957.htm • CWE-264: Permissions, Privileges, and Access Controls CWE-287: Improper Authentication •

CVSS: 5.0EPSS: 6%CPEs: 2EXPL: 0

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c. Vulnerabilidad en la implementación de la codificación de transferencia fragmentada en el Servidor HTTP Apache en versiones anteriores a la 2.4.14 no analiza adecuadamente los fragmentos de las cabeceras lo cual permite a atacantes remotos efectuar ataques de infiltración de solicitudes HTTP a través de peticiones manipuladas, relacionada con el mal manejo de los valores fragmentados de gran tamaño y extensiones fragmentadas no válidas en modules/http/http_filters.c. Multiple flaws were found in the way httpd parsed HTTP requests and responses using chunked transfer encoding. A remote attacker could use these flaws to create a specially crafted request, which httpd would decode differently from an HTTP proxy software in front of it, possibly leading to HTTP request smuggling attacks. • http://httpd.apache.org/security/vulnerabilities_24.html http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735 http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://lists.opensuse.org/opensuse-updates/2015-10/msg00011.html http://marc.info/?l=bugtraq&m=144493176821532&w=2 http://rhn.redhat.com/errata/RHSA-2015-1666.html http://rhn.redhat.com/errata/RHSA-2015-1667.html http&# • CWE-17: DEPRECATED: Code CWE-20: Improper Input Validation CWE-172: Encoding Error •

CVSS: 5.0EPSS: 5%CPEs: 8EXPL: 0

The lua_websocket_read function in lua_request.c in the mod_lua module in the Apache HTTP Server through 2.4.12 allows remote attackers to cause a denial of service (child-process crash) by sending a crafted WebSocket Ping frame after a Lua script has called the wsupgrade function. La función lua_websocket_read en lua_request.c en el módulo mod_lua en Apache HTTP Server hasta 2.4.12 permite a atacantes remotos causar una denegación de servicio (caída del proceso hijo) mediante el envío de un Frame WebSocket Ping manipulado después de que una secuencia de comandos Lua haya llamado a la función wsupgrade. A denial of service flaw was found in the way the mod_lua httpd module processed certain WebSocket Ping requests. A remote attacker could send a specially crafted WebSocket Ping packet that would cause the httpd child process to crash. • http://advisories.mageia.org/MGASA-2015-0099.html http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://lists.opensuse.org/opensuse-updates/2015-03/msg00006.html http://rhn.redhat.com/errata/RHSA-2015-1666.html http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/CHANGES http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html http://www.oracle.com/technetwork&#x • CWE-20: Improper Input Validation •

CVSS: 4.3EPSS: 0%CPEs: 17EXPL: 0

mod_lua.c in the mod_lua module in the Apache HTTP Server 2.3.x and 2.4.x through 2.4.10 does not support an httpd configuration in which the same Lua authorization provider is used with different arguments within different contexts, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging multiple Require directives, as demonstrated by a configuration that specifies authorization for one group to access a certain directory, and authorization for a second group to access a second directory. El módulo mod_lua.c en el módulo mod_lua en Apache HTTP Server 2.3.x y 2.4.x a través de 2.4.10 no soporta la configuración httpd en la cual el proveedor de autorización Lua se usa con argumentos diferentes dentro de contextos diferentes, lo que permite a atacantes remotos saltarse las restricciones de acceso en ciertas circunstancias aprovechando múltiples directivas requeridas, como se demuestra por una configuración que especifica la autorización para un grupo para acceder a un directorio determinado, y una autorización para un segundo grupo para acceder a un segundo directorio. • http://advisories.mageia.org/MGASA-2015-0011.html http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159352.html http://www.openwall.com/lists/oss-security/2014/11/28/5 http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html http://www.securityfocus.com/bid/73040 http://www.ubuntu.com/usn/USN-2523-1 https • CWE-863: Incorrect Authorization •

CVSS: 5.0EPSS: 7%CPEs: 31EXPL: 0

The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty HTTP Content-Type header. La función cache_merge_headers_out en modules/cache/cache_util.c en el módulo mod_cache en el servidor Apache HTTP anterior a 2.4.11 permite a atacantes remotos causar una denegación de servicio (referencia a puntero nulo y caída de la aplicación) a través de una cabecera HTTP Content-Type vacía. A NULL pointer dereference flaw was found in the way the mod_cache httpd module handled Content-Type headers. A malicious HTTP server could cause the httpd child process to crash when the Apache HTTP server was configured to proxy to a server with caching enabled. • http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://rhn.redhat.com/errata/RHSA-2015-0325.html http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup&pathrev=1627749 http://svn.apache.org/viewvc?view=revision&revision=1624234 http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htm • CWE-476: NULL Pointer Dereference •