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CVSS: 7.5EPSS: 0%CPEs: 24EXPL: 0

In Apache HTTP Server 2.4 release 2.4.38 and prior, a race condition in mod_auth_digest when running in a threaded server could allow a user with valid credentials to authenticate using another username, bypassing configured access control restrictions. En Apache HTTP Server 2.4 versión 2.4.38 y anteriores, una condición de carrera en mod_auth_digest cuando se ejecuta en un servidor multihilo podría permitir a un usuario con credenciales válidas autenticarse usando otro nombre de usuario, evitando las restricciones de control de acceso configuradas. A race condition was found in mod_auth_digest when the web server was running in a threaded MPM configuration. It could allow a user with valid credentials to authenticate using another username, bypassing configured access control restrictions. • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html http://www.openwall.com/lists/oss-security/2019/04/02/5 http://www.securityfocus.com/bid/107668 https://access.redhat.com/errata/RHSA-2019:2343 https://access.redhat.com/errata/RHSA-2019:3436 https://access.redhat.com/errata/RHSA-2019:3932 https://access.red • CWE-284: Improper Access Control CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 8.8EPSS: 96%CPEs: 68EXPL: 3

In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected. En Apache HTTP Server 2.4, versiones 2.4.17 a 2.4.38, con el evento MPM, worker o prefork, el código ejecutándose en procesos hijo (o hilos) menos privilegiados (incluyendo scripts ejecutados por un intérprete de scripts en proceso) podría ejecutar código arbitrario con los privilegios del proceso padre (normalmente root) manipulando el marcador. Los sistemas que no son Unix no se ven afectados. A flaw was found in Apache where code executing in a less-privileged child process or thread could execute arbitrary code with the privilege of the parent process (usually root). • https://www.exploit-db.com/exploits/46676 http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html http://packetstormsecurity.com/files/152386/Apache-2.4.38-Root-Privilege-Escalation.html http://packetstormsecurity.com/files/152415/Slackware-Security-Advisory-httpd-Updates.html http://packetstormsecurity.com/files/152441/CARPE-DIEM-Apache-2.4.x • CWE-250: Execution with Unnecessary Privileges CWE-416: Use After Free •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

Akka HTTP versions <= 10.0.5 Illegal Media Range in Accept Header Causes StackOverflowError Leading to Denial of Service Akka HTTP en su versión 10.0.5 y anteriores tiene una vulnerabilidad en Illegal Media Range en Accept Header que causa un error de desbordamiento de pila que desemboca en una denegación de servicio (DoS). • https://doc.akka.io/docs/akka-http/10.0.6/security/2017-05-03-illegal-media-range-in-accept-header-causes-stackoverflowerror.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.5EPSS: 95%CPEs: 18EXPL: 4

Race condition in the mod_status module in the Apache HTTP Server before 2.4.10 allows remote attackers to cause a denial of service (heap-based buffer overflow), or possibly obtain sensitive credential information or execute arbitrary code, via a crafted request that triggers improper scoreboard handling within the status_handler function in modules/generators/mod_status.c and the lua_ap_scoreboard_worker function in modules/lua/lua_request.c. Condición de carrera en el módulo mod_status en Apache HTTP Server anterior a 2.4.10 permite a atacantes remotos causar una denegación de servicio (desbordamiento de buffer basado en memoria dinámica), o posiblemente obtener información sensible de credenciales o ejecutar código arbitrario, a través de una solicitud manipulada que provoca el manejo indebido de la tabla de clasificación (scoreboard) dentro de la función status_handler en modules/generators/mod_status.c y la función lua_ap_scoreboard_worker en modules/lua/lua_request.c. A race condition flaw, leading to heap-based buffer overflows, was found in the mod_status httpd module. A remote attacker able to access a status page served by mod_status on a server using a threaded Multi-Processing Module (MPM) could send a specially crafted request that would cause the httpd child process to crash or, possibly, allow the attacker to execute arbitrary code with the privileges of the "apache" user. This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apache HTTPD server. • https://www.exploit-db.com/exploits/34133 https://github.com/shreesh1/CVE-2014-0226-poc http://advisories.mageia.org/MGASA-2014-0304.html http://advisories.mageia.org/MGASA-2014-0305.html http://httpd.apache.org/security/vulnerabilities_24.html http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html http://marc.info/?l=bugtraq&m=143403519711434&w=2 http://marc.info/?l=bugtraq&m=143748090628601&w=2 http://marc.info/?l=bugtraq&m=144050155601375&w=2 http&# • CWE-122: Heap-based Buffer Overflow CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 5.0EPSS: 46%CPEs: 76EXPL: 1

The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass "RequestHeader unset" directives by placing a header in the trailer portion of data sent with chunked transfer coding. NOTE: the vendor states "this is not a security issue in httpd as such." El módulo mod_headers en el servidor de Apache HTTP 2.2.22 permite a atacantes remotos evadir directivas "RequestHeader unset" mediante la colocación de una cabera en la porción "trailer" de datos enviados con codificación de transferencia fragmentada. NOTA: el proveedor afirma que "esto no es un problema de seguridad en httpd como tal." A flaw was found in the way httpd handled HTTP Trailer headers when processing requests using chunked encoding. • http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://marc.info/?l=apache-httpd-dev&m=139636309822854&w=2 http://marc.info/?l=bugtraq&m=143403519711434&w=2 http://marc.info/?l=bugtraq&m=144493176821532&w=2 http://martin.swende.se/blog/HTTPChunked.html http://rhn.redhat.com/errata/RHSA-2015-0325.html http://rhn.redhat.com/errata/RHSA-2015-1249.html http://rhn.redhat& • CWE-287: Improper Authentication •