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CVSS: 6.0EPSS: 3%CPEs: 15EXPL: 0

Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function. Desbordamiento de búfer basado en pila en la función ast_uri_encode, en main/utils.c, en Asterisk Open Source before v.1.4.38.1, v.1.4.39.1, v.1.6.1.21, v.1.6.2.15.1, v.1.6.2.16.1, v.1.8.1.2, v.1.8.2.; y Business Edition before v.C.3.6.2; cuando se ejecuta en modo "pedantic" permite a usuarios autenticados ejectuar código de su elección manipulados con el dato llamador ID en vectores que involucran el (1) el driver del SIP, (2) la función URIENCODE dialplan, o la función AGI dialplan. • http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff http://downloads.asterisk.org/pub/security/AST-2011-001.html http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html http://osvdb.org/70518 http://secunia.com/advisories/42935 http://secunia.com/advisories/43119 http://secunia.com/advisories/43373 http://www.debian.org/security/2011/dsa-2171 http://www&# • CWE-787: Out-of-bounds Write •

CVSS: 5.0EPSS: 0%CPEs: 126EXPL: 1

The design of the dialplan functionality in Asterisk Open Source 1.2.x, 1.4.x, and 1.6.x; and Asterisk Business Edition B.x.x and C.x.x, when using the ${EXTEN} channel variable and wildcard pattern matches, allows context-dependent attackers to inject strings into the dialplan using metacharacters that are injected when the variable is expanded, as demonstrated using the Dial application to process a crafted SIP INVITE message that adds an unintended outgoing channel leg. NOTE: it could be argued that this is not a vulnerability in Asterisk, but a class of vulnerabilities that can occur in any program that uses this feature without the associated filtering functionality that is already available. El diseño de la funcionalidad dialplan en Asterisk Open Source v1.2.x, v1.4.x, y v1.6.x; y Asterisk Business Edition vB.x.x y vC.x.x,cuando se utiliza la variable de canal $ (EXTEN) y coincidencias de patron comodín, permite a atacantes dependiendo del contexto, inyectar cadenas en dialplan utilizando metacaracteres que son inyectados cuando la variable es expandida, como se demuestra utilizando la aplicación Dial en un proceso en el que el mensaje SIP INVITE esta manipulado el cual añade un canal de salida no previsto. NOTA: Podría argumentarse que esto no es una vulnerabilidad en Asterisk, pero hay un tipo de vulnerabilidades que pueden producirse en cualquier programa que utilice esta característica sin la funcionalidad de filtrado correspondiente que actualmente esta disponible. • http://downloads.digium.com/pub/security/AST-2010-002.html http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html http://secunia.com/advisories/38641 http://secunia.com/advisories/39096 http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt http://www.securityfocus.com/archive/1/509608/100/0/threaded http://www.securitytracker.com/id?1023637 http://www.vupen.com/english/advisories/2010/0439 https://exchange.xforce.ibmcloud.com/vul •

CVSS: 7.8EPSS: 3%CPEs: 9EXPL: 1

The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP. El driver SIP channel en Asterisk Open Source v1.2.x anterior a v1.2.34, v1.4.x anterior a v1.4.26.1, v1.6.0.x anterior a v1.6.0.12, y v1.6.1.x anterior a v1.6.1.4; Asterisk Business Edition vA.x.x, vB.x.x anterior a vB.2.5.9, vC.2.x anterior a vC.2.4.1, y vC.3.x anterior a vC.3.1; y Asterisk Appliance s800i v1.2.x anterior a v1.3.0.3, no utiliza el ancho máximo cuando se invocan las funciones de estilo sscanf, lo que permite a atacantes remotos producir una denegación de servicio (agotamiento de la pila de memoria) a través de paquetes SIP que contienen secuencias largas de caracteres ASCII decimales, como se demostró a través de vectores relacionados con (1) el valor CSeq en una cabecera SIP, (2) valores Content-Length, y (3) SDP. • http://downloads.digium.com/pub/security/AST-2009-005.html http://labs.mudynamics.com/advisories/MU-200908-01.txt http://secunia.com/advisories/36227 http://www.securityfocus.com/archive/1/505669/100/0/threaded http://www.securityfocus.com/bid/36015 http://www.securitytracker.com/id?1022705 http://www.vupen.com/english/advisories/2009/2229 • CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 7.8EPSS: 96%CPEs: 108EXPL: 3

The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and 1.4.x before 1.4.21.2; Business Edition A.x.x, B.x.x before B.2.5.4, and C.x.x before C.1.10.3; AsteriskNOW; Appliance Developer Kit 0.x.x; and s800i 1.0.x before 1.2.0.1 allows remote attackers to cause a denial of service (call-number exhaustion and CPU consumption) by quickly sending a large number of IAX2 (IAX) POKE requests. La implementación del protocolo IAX2 en Asterisk Open Source versiones 1.0.x, versiones 1.2.x anteriores a 1.2.30 y versiones 1.4.x anteriores a 1.4.21.2; Business Edition versiones A.x.x, versiones B.x.x anteriores a B.2.5.4 y versiones C.x.x anteriores a C.1.10.3; AsteriskNOW; Appliance Developer Kit versiones 0.x.x; y s800i versiones 1.0.x anteriores a 1.2.0.1, permite a los atacantes remotos causar una denegación de servicio (agotamiento del número de llamadas y consumo de CPU) mediante el envío rápido de un gran número de peticiones POKE de IAX2 (IAX). • https://www.exploit-db.com/exploits/32095 http://downloads.digium.com/pub/security/AST-2008-010.html http://downloads.securityfocus.com/vulnerabilities/exploits/30321.pl http://secunia.com/advisories/31178 http://secunia.com/advisories/31194 http://secunia.com/advisories/34982 http://security.gentoo.org/glsa/glsa-200905-01.xml http://www.securityfocus.com/archive/1/494675/100/0/threaded http://www.securityfocus.com/bid/30321 http://www.securitytracker.com/id?1020535 http:// • CWE-399: Resource Management Errors •

CVSS: 7.5EPSS: 1%CPEs: 6EXPL: 0

SQL injection vulnerability in the Postgres Realtime Engine (res_config_pgsql) in Asterisk 1.4.x before 1.4.15 and C.x before C.1.0-beta6 allows remote attackers to execute arbitrary SQL commands via unknown vectors. Vulnerabilidad de inyección SQL en Postgres Realtime Engine (res_config_pgsql) de Asterisk 1.4.x anterior a 1.4.15 y C.x before C.1.0-beta6 permite a atacantes remotos ejecutar comandos SQL de su elección mediante vectores desconocidos. • http://downloads.digium.com/pub/security/AST-2007-025.html http://osvdb.org/38933 http://secunia.com/advisories/27873 http://securitytracker.com/id?1019021 http://www.securityfocus.com/archive/1/484387/100/0/threaded http://www.securityfocus.com/bid/26645 http://www.vupen.com/english/advisories/2007/4055 https://exchange.xforce.ibmcloud.com/vulnerabilities/38766 • CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') •