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CVSS: 7.5EPSS: 2%CPEs: 189EXPL: 0

In res/res_rtp_asterisk.c in Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized data disclosure (media takeover in the RTP stack) is possible with careful timing by an attacker. The "strictrtp" option in rtp.conf enables a feature of the RTP stack that learns the source address of media for a session and drops any packets that do not originate from the expected address. This option is enabled by default in Asterisk 11 and above. The "nat" and "rtp_symmetric" options (for chan_sip and chan_pjsip, respectively) enable symmetric RTP support in the RTP stack. This uses the source address of incoming media as the target address of any sent media. • http://downloads.asterisk.org/pub/security/AST-2017-005.html http://www.debian.org/security/2017/dsa-3964 http://www.securitytracker.com/id/1039251 https://bugs.debian.org/873907 https://issues.asterisk.org/jira/browse/ASTERISK-27013 https://rtpbleed.com https://security.gentoo.org/glsa/201710-29 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 9.8EPSS: 96%CPEs: 189EXPL: 0

In Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized command execution is possible. The app_minivm module has an "externnotify" program configuration option that is executed by the MinivmNotify dialplan application. The application uses the caller-id name and number as part of a built string passed to the OS shell for interpretation and execution. Since the caller-id name and number can come from an untrusted source, a crafted caller-id name or number allows an arbitrary shell command injection. En Asterisk 11.x en versiones anteriores a la 11.25.2, 13.x en versiones anteriores a la 13.17.1, y 14.x en versiones anteriores a la 14.6.1 y Certified Asterisk 11.x en versiones anteriores a la 11.6-cert17 y 13.x en versiones anteriores a la 13.13-cert5, es ejecutar comandos sin autorización. • http://downloads.asterisk.org/pub/security/AST-2017-006.html http://www.debian.org/security/2017/dsa-3964 http://www.securitytracker.com/id/1039252 https://bugs.debian.org/873908 https://issues.asterisk.org/jira/browse/ASTERISK-27103 https://security.gentoo.org/glsa/201710-29 • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVSS: 7.5EPSS: 92%CPEs: 87EXPL: 0

In the pjsip channel driver (res_pjsip) in Asterisk 13.x before 13.17.1 and 14.x before 14.6.1, a carefully crafted tel URI in a From, To, or Contact header could cause Asterisk to crash. En el controlador de canal pjsip (res_pjsip) en Asterisk 13.x en versiones anteriores a la 13.17.1 y 14.x en versiones anteriores a la 14.6.1, una URI tel cuidadosamente manipulada en un encabezado From, To, o Contact podría provocar el bloqueo de Asterisk. • http://downloads.asterisk.org/pub/security/AST-2017-007.html http://www.securityfocus.com/bid/100583 http://www.securitytracker.com/id/1039253 https://bugs.debian.org/873909 https://issues.asterisk.org/jira/browse/ASTERISK-27152 • CWE-20: Improper Input Validation •

CVSS: 6.0EPSS: 0%CPEs: 144EXPL: 0

channels/chan_iax2.c in Asterisk Open Source 1.8.x before 1.8.15.1 and 10.x before 10.7.1, Certified Asterisk 1.8.11 before 1.8.11-cert7, Asterisk Digiumphones 10.x.x-digiumphones before 10.7.1-digiumphones, and Asterisk Business Edition C.3.x before C.3.7.6 does not enforce ACL rules during certain uses of peer credentials, which allows remote authenticated users to bypass intended outbound-call restrictions by leveraging the availability of these credentials. channels/chan_iax2.c en Asterisk Open Source v1.8.x antes de v1.8.15.1 y v10.x antes de v10.7.1, Certified Asterisk v1.8.11-1.8.11 antes de cert7, Digiumphones Asterisk v10.xx-digiumphones antes de v10.7.1-digiumphones y Asterisk Business Edition C.3.x antes de C.3.7.6 no hace cumplir las reglas de ACL durante ciertos usos del par de credenciales, lo que permite a usuarios remotos autenticados eludir las restricciones de llamadas de salida aprovechándose de la disponibilidad de estas credenciales. • http://downloads.asterisk.org/pub/security/AST-2012-013.html http://secunia.com/advisories/50687 http://secunia.com/advisories/50756 http://www.debian.org/security/2012/dsa-2550 http://www.securityfocus.com/bid/55335 http://www.securitytracker.com/id?1027461 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 5.0EPSS: 39%CPEs: 195EXPL: 0

chan_iax2.c in the IAX2 channel driver in Asterisk Open Source 1.4.x before 1.4.41.1, 1.6.2.x before 1.6.2.18.1, and 1.8.x before 1.8.4.3, and Asterisk Business Edition C.3 before C.3.7.3, accesses a memory address contained in an option control frame, which allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame. chan_iax2.c en el controlador de canal IAX2 en Asterisk Open Source v1.4.x anteriores a v1.4.41.1, v1.6.2.x anteriores a v1.6.2.18.1, y v1.8.x anteriores a v1.8.4.3, y Asterisk Business Edition vC.3 anteriores a vC.3.7.3, accede a una dirección de memoria contenida en un marco de control de opción, que permite a atacantes remotos causar una denegación de servicio (caída del demonio) o posiblemente tener un impacto no especificado a través de un marco manipulado. • http://downloads.asterisk.org/pub/security/AST-2011-010-1.8.diff http://downloads.asterisk.org/pub/security/AST-2011-010.html http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html http://secunia.com/advisories/44973 http://secunia.com/advisories/45048 http://secunia.com/advisories/45201 http://secunia.com/advisories/45239 http://securitytracker.com/id?1025708 http://www.debian.org/security/2011/dsa-2276 http://www.osvdb.org/73309 http://www.secu • CWE-20: Improper Input Validation •