CVE-2007-4430 – Cisco IOS 12.3 - Show IP BGP Regexp Remote Denial of Service

https://notcve.org/view.php?id=CVE-2007-4430

Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access. Una vulnerabilidad no especificada en Cisco IOS versiones 12.0 hasta 12.4, permite a atacantes dependiendo del contexto causar una denegación de servicio (reinicio del dispositivo y reconstrucción de la tabla de enrutamiento BGP) por medio de ciertas expresiones regulares en un comando "show ip bgp regexp". NOTA: los ataques remotos no autenticados son posibles en entornos con acceso anónimo a telnet y Looking Glass. • https://www.exploit-db.com/exploits/30506 http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%2C%20Routing%20and%20Switching&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddf7bc9 http://secunia.com/advisories/26798 http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html http://www.heise-security.co.uk/news/94526 http://www.securityfocus.com/bid/25352 http://www.securitytracker.com/id?1018685 http://www.vupen.com/english/a • CWE-20: Improper Input Validation •