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CVSS: 7.1EPSS: 2%CPEs: 2049EXPL: 0

The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other operating systems allows remote attackers to cause a denial of service (connection queue exhaustion) via multiple vectors that manipulate information in the TCP state table, as demonstrated by sockstress. La implementación del protocolo TCP en (1) Linux, (2) plataformas basadas en BSD Unix, (3) Microsoft Windows, (4) productos Cisco, y probablemente otros sistemas operativos, permite a atacantes remotos provocar una denegación de servicio (agotamiento de cola de conexión) a través de múltiples vectores que manipulan información en la tabla de estados del TCP, como lo demuestra sockstress. • http://blog.robertlee.name/2008/10/conjecture-speculation.html http://insecure.org/stf/tcp-dos-attack-explained.html http://lists.immunitysec.com/pipermail/dailydave/2008-October/005360.html http://marc.info/?l=bugtraq&m=125856010926699&w=2 http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borked http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtml http://www.cisco.com/en/US/products/products_security_response09186a0080a15120.html http://www.cpni • CWE-16: Configuration •

CVSS: 9.3EPSS: 3%CPEs: 10EXPL: 0

The IPv6 Neighbor Discovery Protocol (NDP) implementation in (1) FreeBSD 6.3 through 7.1, (2) OpenBSD 4.2 and 4.3, (3) NetBSD, (4) Force10 FTOS before E7.7.1.1, (5) Juniper JUNOS, and (6) Wind River VxWorks 5.x through 6.4 does not validate the origin of Neighbor Discovery messages, which allows remote attackers to cause a denial of service (loss of connectivity) or read private network traffic via a spoofed message that modifies the Forward Information Base (FIB). La implementación IPv6 Neighbor Discovery Protocol (NDP) en (1) FreeBSD v6.3 hasta v7.1, (2) OpenBSD v4.2 y v4.3, (3) NetBSD, (4) Force10 FTOS versiones anteriores a vE7.7.1.1, (5) Juniper JUNOS, y (6) Wind River VxWorks 5.x hasta v6.4 no valida los mensaje originales de Neighbor Discovery, lo cual permite a atacantes remotos provocar una denegación de servicio (pérdida de conectividad) o leer tráfico de red privado a través de mensajes falsos que modifica la Forward Information Base (FIB). • ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-013.txt.asc http://secunia.com/advisories/32112 http://secunia.com/advisories/32116 http://secunia.com/advisories/32117 http://secunia.com/advisories/32133 http://secunia.com/advisories/32406 http://security.freebsd.org/advisories/FreeBSD-SA-08:10.nd6.asc http://securitytracker.com/id?1020968 http://support.apple.com/kb/HT3467 http://www.kb.cert.org/vuls/id/472363 http://www.kb.cert.org/vuls/id/ • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 8%CPEs: 3EXPL: 3

ftpd in OpenBSD 4.3, FreeBSD 7.0, NetBSD 4.0, Solaris, and possibly other operating systems interprets long commands from an FTP client as multiple commands, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and execute arbitrary FTP commands via a long ftp:// URI that leverages an existing session from the FTP client implementation in a web browser. ftpd en OpenBSD 4.3, FreeBSD 7.0, y NetBSD 4.0 interpreta como múltiples comandos los comandos largos desde un cliente FTP, lo que permite a atacantes remotos llevar a cabo ataques de falsificación de petición en sitios cruzados (CSFR) y ejecutar comandos FTP de su elección a través de una URI ftp:// larga que aprovecha una sesión FTP existente en la implementación de un cliente FTP en un navegador web. • https://www.exploit-db.com/exploits/32399 ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-014.txt.asc http://bugs.proftpd.org/show_bug.cgi?id=3115 http://secunia.com/advisories/32068 http://secunia.com/advisories/32070 http://secunia.com/advisories/33341 http://security.FreeBSD.org/advisories/FreeBSD-SA-08:12.ftpd.asc http://securityreason.com/achievement_securityalert/56 http://securityreason.com/securityalert/4313 http://www.openbsd.org/cgi-bin/cvsweb/src/ • CWE-352: Cross-Site Request Forgery (CSRF) •

CVSS: 4.6EPSS: 0%CPEs: 5EXPL: 4

Stack-based buffer overflow in the command_Expand_Interpret function in command.c in ppp (aka user-ppp), as distributed in FreeBSD 6.3 and 7.0, OpenBSD 4.1 and 4.2, and the net/userppp package for NetBSD, allows local users to gain privileges via long commands containing "~" characters. Desbordamiento de búfer basado en pila en la función command_Expand_Interpret de command.c en ppp (aka user-ppp), como se distribuyó en FreeBSD 6.3 y 7.0, OpenBSD 4.1 y 4.2, y el paquete net/userppp para NetBSD, permite a usuarios locales obtener privilegios a través de comandos largos que contienen los caracteres "~". • https://www.exploit-db.com/exploits/31333 http://secunia.com/advisories/29234 http://secunia.com/advisories/29238 http://secunia.com/advisories/29240 http://www.openbsd.org/errata41.html#014_ppp http://www.openbsd.org/errata42.html#009_ppp http://www.securityfocus.com/archive/82/488980/30/0/threaded http://www.securityfocus.com/archive/82/489031/30/0/threaded http://www.securityfocus.com/bid/28090 https://exchange.xforce.ibmcloud.com/vulnerabilities/41034 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 6.8EPSS: 2%CPEs: 198EXPL: 0

A certain pseudo-random number generator (PRNG) algorithm that uses ADD with 0 random hops (aka "Algorithm A0"), as used in OpenBSD 3.5 through 4.2 and NetBSD 1.6.2 through 4.0, allows remote attackers to guess sensitive values such as (1) DNS transaction IDs or (2) IP fragmentation IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as DNS cache poisoning, injection into TCP packets, and OS fingerprinting. Cierto algoritmo generador de números pseudo-aleatorios(PRNG) que usa ADD con 0 saltos aleatorios(también conocido como "algoritmo A0"), usado en OpenBSD de la v3.5 a la 4.2 y NetBSD v1.6.2 a la 4.0, permite a atacantes remotos adivinar datos sensibles como (1)los IDs de una transacción DNS, (2)IDs de una fragmentación IP observando una secuencias generadas previamente. NOTA: este fallo puede ser aprovechado por ataques como el envenenamiento de la cachés DNS, la inyección de paquetes TCP y OS fingerprinting. • http://secunia.com/advisories/28819 http://www.securiteam.com/securityreviews/5PP0H0UNGW.html http://www.securityfocus.com/archive/1/487658 http://www.securityfocus.com/bid/27647 http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf https://exchange.xforce.ibmcloud.com/vulnerabilities/40329 https://exchange.xforce.ibmcloud.com/vulnerabilities/41157 •