CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 0CVE-2016-8743 – httpd: Apache HTTP Request Parsing Whitespace Defects
https://notcve.org/view.php?id=CVE-2016-8743
Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the whitespace accepted from requests and sent in response lines and headers. Accepting these different behaviors represented a security concern when httpd participates in any chain of proxies or interacts with back-end application servers, either through mod_proxy or using conventional CGI mechanisms, and may result in request smuggling, response splitting and cache pollution. El servidor HTTP Apache, en todas las distribuciones anteriores a la 2.2.32 y la 2.4.25 era liberal en el espacio en blanco aceptado de peticiones y enviado en lineas y cabeceras de respuesta. La aceptación de estos comportamientos diferentes representaba un problema a nivel de seguridad cuando httpd participa en cualquier cadena de proxies o interactúa con servidores de aplicaciones backend, ya sea mediante mod_proxy o utilizando mecanismos CGI convencionales y puede dar lugar al tráfico de peticiones, división de respuestas y contaminación de la caché. It was discovered that the HTTP parser in httpd incorrectly allowed certain characters not permitted by the HTTP protocol specification to appear unencoded in HTTP request headers. • http://rhn.redhat.com/errata/RHSA-2017-1415.html http://www.debian.org/security/2017/dsa-3796 http://www.securityfocus.com/bid/95077 http://www.securitytracker.com/id/1037508 https://access.redhat.com/errata/RHSA-2017:0906 https://access.redhat.com/errata/RHSA-2017:1161 https://access.redhat.com/errata/RHSA-2017:1413 https://access.redhat.com/errata/RHSA-2017:1414 https://access.redhat.com/errata/RHSA-2017:1721 https://h20566.www2.hpe.com/hpsc/doc/public/display • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 3%CPEs: 17EXPL: 0CVE-2016-2161 – httpd: DoS vulnerability in mod_auth_digest
https://notcve.org/view.php?id=CVE-2016-2161
In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests. En Apache HTTP Server versiones 2.4.0 hasta 2.4.23, una entrada maliciosa a mod_auth_digest puede causar que el servidor se bloquee y cada instancia continúa bloqueado incluso para las peticiones válidas posteriormente. It was discovered that the mod_auth_digest module of httpd did not properly check for memory allocation failures. A remote attacker could use this flaw to cause httpd child processes to repeatedly crash if the server used HTTP digest authentication. • http://rhn.redhat.com/errata/RHSA-2017-1415.html http://www.debian.org/security/2017/dsa-3796 http://www.securityfocus.com/bid/95076 http://www.securitytracker.com/id/1037508 https://access.redhat.com/errata/RHSA-2017:0906 https://access.redhat.com/errata/RHSA-2017:1161 https://access.redhat.com/errata/RHSA-2017:1413 https://access.redhat.com/errata/RHSA-2017:1414 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us https:& • CWE-20: Improper Input Validation CWE-823: Use of Out-of-range Pointer Offset •
CVSS: 7.5EPSS: 1%CPEs: 17EXPL: 1CVE-2016-0736 – Apache mod_session_crypto - Padding Oracle
https://notcve.org/view.php?id=CVE-2016-0736
In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC. En Apache HTTP Server versiones 2.4.0 hasta 2.4.23, mod_session_crypto fue cifraba su cookie y datos utilizando los cifrados configurados posiblemente con los modos de operación CBC o ECB (AES256-CBC por defecto), por lo tanto, no se puede seleccionar ni crear cifrado autenticado integrado. Esto lo hizo vulnerable a los ataques de tipo oráculo de relleno (padding oracle), particularmente con CBC. It was discovered that the mod_session_crypto module of httpd did not use any mechanisms to verify integrity of the encrypted session data stored in the user's browser. • https://www.exploit-db.com/exploits/40961 http://rhn.redhat.com/errata/RHSA-2017-1415.html http://www.debian.org/security/2017/dsa-3796 http://www.securityfocus.com/bid/95078 http://www.securitytracker.com/id/1037508 https://access.redhat.com/errata/RHSA-2017:0906 https://access.redhat.com/errata/RHSA-2017:1161 https://access.redhat.com/errata/RHSA-2017:1413 https://access.redhat.com/errata/RHSA-2017:1414 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocal • CWE-287: Improper Authentication CWE-310: Cryptographic Issues •
CVSS: 8.1EPSS: 17%CPEs: 52EXPL: 0CVE-2016-5387 – HTTPD: sets environmental variable based on user supplied Proxy request header
https://notcve.org/view.php?id=CVE-2016-5387
The Apache HTTP Server through 2.4.23 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "This mitigation has been assigned the identifier CVE-2016-5387"; in other words, this is not a CVE ID for a vulnerability. El Apache HTTP Server hasta la versión 2.4.23 sigue a RFC 3875 sección 4.1.18 y por lo tanto no protege aplicaciones de la presencia de datos de clientes no confiables en ambiente variable de HTTP_PROXY, lo que puede permitir a atacantes remotos redireccionar el tráfico HTTP saliente de aplicación a un servidor proxy arbitrario a través de una cabecera Proxy manipulada en una petición HTTP, también conocido como problema "httpoxy". NOTA: el vendedor afirma "Se ha asignado a esta mitigación el identificador CVE-2016-5387"; en otras palabras, esto no es un CVE ID para una vulnerabilidad. It was discovered that httpd used the value of the Proxy header from HTTP requests to initialize the HTTP_PROXY environment variable for CGI scripts, which in turn was incorrectly used by certain HTTP client implementations to configure the proxy for outgoing HTTP requests. • http://lists.opensuse.org/opensuse-updates/2016-07/msg00059.html http://rhn.redhat.com/errata/RHSA-2016-1624.html http://rhn.redhat.com/errata/RHSA-2016-1625.html http://rhn.redhat.com/errata/RHSA-2016-1648.html http://rhn.redhat.com/errata/RHSA-2016-1649.html http://rhn.redhat.com/errata/RHSA-2016-1650.html http://www.debian.org/security/2016/dsa-3623 http://www.kb.cert.org/vuls/id/797896 http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html • CWE-20: Improper Input Validation •
CVSS: 5.0EPSS: 0%CPEs: 46EXPL: 0CVE-2015-3184 – subversion: Mixed anonymous/authenticated path-based authz with httpd 2.4
https://notcve.org/view.php?id=CVE-2015-3184
mod_authz_svn in Apache Subversion 1.7.x before 1.7.21 and 1.8.x before 1.8.14, when using Apache httpd 2.4.x, does not properly restrict anonymous access, which allows remote anonymous users to read hidden files via the path name. Vulnerabilidad en mod_authz_svn en Apache Subversion 1.7.x en versiones anteriores a 1.7.21 y 1.8.x en versiones anteriores a 1.8.14, al utilizar Apache httpd 2.4.x, no restringe correctamente el acceso anónimo, lo que permite a usuarios anónimos remotos leer archivos ocultos a través del nombre de la ruta. It was found that the mod_authz_svn module did not properly restrict anonymous access to Subversion repositories under certain configurations when used with Apache httpd 2.4.x. This could allow a user to anonymously access files in a Subversion repository, which should only be accessible to authenticated users. • http://lists.apple.com/archives/security-announce/2016/Mar/msg00003.html http://lists.opensuse.org/opensuse-updates/2015-08/msg00022.html http://rhn.redhat.com/errata/RHSA-2015-1742.html http://subversion.apache.org/security/CVE-2015-3184-advisory.txt http://www.debian.org/security/2015/dsa-3331 http://www.securityfocus.com/bid/76274 http://www.securitytracker.com/id/1033215 http://www.ubuntu.com/usn/USN-2721-1 https://security.gentoo.org/glsa/201610-05 https://support • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-285: Improper Authorization •