CVE-2010-4478
https://notcve.org/view.php?id=CVE-2010-4478
OpenSSH 5.6 and earlier, when J-PAKE is enabled, does not properly validate the public parameters in the J-PAKE protocol, which allows remote attackers to bypass the need for knowledge of the shared secret, and successfully authenticate, by sending crafted values in each round of the protocol, a related issue to CVE-2010-4252. OpenSSH v5.6 y versiones anteriores, si J-PAKE está activo, no valida apropiadamente los parámetros públicos en el protocolo J-PAKE, lo que permite a atacantes remotos evitar la necesidad de conocer el secreto compartido, y autenticarse con éxito, enviando valores modificados en cada turno del protocolo. Relacionado con CVE-2010-4252. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673 http://seb.dbzteam.org/crypto/jpake-session-key-retrieval.pdf http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/jpake.c#rev1.5 http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/jpake.c.diff?r1=1.4%3Br2=1.5%3Bf=h https://bugzilla.redhat.com/show_bug.cgi?id=659297 https://github.com/seb-m/jpake https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12338 • CWE-287: Improper Authentication •
CVE-2009-2904 – openssh: possible privilege escalation when using ChrootDirectory setting
https://notcve.org/view.php?id=CVE-2009-2904
A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership. Ciertas modificaciones Ret Hat en ChrootDirectory feature en OpenSSH v4.8, como el usado en sshd en OpenSSH v4.3 en Red Hat Enterprise Linux (RHEL) v5.4 y Fedora v11, permite a usuarios locales obtener privilegios a través de enlaces fuertes en programas setuid que usa una configuración de ficheros con el chroot directory, relacionado con requerimientos para el propietario. • http://lists.fedoraproject.org/pipermail/package-announce/2010-March/038214.html http://lists.vmware.com/pipermail/security-announce/2010/000082.html http://osvdb.org/58495 http://secunia.com/advisories/38794 http://secunia.com/advisories/38834 http://secunia.com/advisories/39182 http://www.securityfocus.com/bid/36552 http://www.vupen.com/english/advisories/2010/0528 https://bugzilla.redhat.com/show_bug.cgi?id=522141 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg • CWE-16: Configuration •
CVE-2008-4109
https://notcve.org/view.php?id=CVE-2008-4109
A certain Debian patch for OpenSSH before 4.3p2-9etch3 on etch; before 4.6p1-1 on sid and lenny; and on other distributions such as SUSE uses functions that are not async-signal-safe in the signal handler for login timeouts, which allows remote attackers to cause a denial of service (connection slot exhaustion) via multiple login attempts. NOTE: this issue exists because of an incorrect fix for CVE-2006-5051. Cierto parche de Debian para OpenSSH en versiones anteriores a 4.3p2-9etch3 en etch, y versiones anteriores a 4.6p1-1 en sid y lenny, que utiliza funciones que no son señales asíncronas seguras (async-signal-safe) en el gestor de señales para los tiempos de autentificado, el cual permite a los atacantes remotos causar una denegación de servicio (agotamiento de la ranura de conexión) a través de múltiples intentos de autenticación. NOTA: esto existe por una incorrecta solución de CVE-2006-5051. • http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498678 http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html http://secunia.com/advisories/31885 http://secunia.com/advisories/32080 http://secunia.com/advisories/32181 http://www.debian.org/security/2008/dsa-1638 http://www.openwall.com/lists/oss-security/2024/07/01/3 http://www.securitytracker.com/id?1020891 http://www.ubuntu.com/usn/usn-649-1 https://exchange.xforce.ibmcloud.com/vulnerabilities/4520 • CWE-264: Permissions, Privileges, and Access Controls •
CVE-2008-3259
https://notcve.org/view.php?id=CVE-2008-3259
OpenSSH before 5.1 sets the SO_REUSEADDR socket option when the X11UseLocalhost configuration setting is disabled, which allows local users on some platforms to hijack the X11 forwarding port via a bind to a single IP address, as demonstrated on the HP-UX platform. OpenSSH anterior a 5.1 activa la opción del socket SO_REUSEADDR cuando la configuración X11UseLocalhost está desactivada, lo que permite a usuarios locales en determinadas plataformas, secuestrar el puerto de reenvío X11 a través de una única dirección IP como se ha demostrado sobre la plataforma HP-UX. • http://openssh.com/security.html http://secunia.com/advisories/31179 http://www.openssh.com/txt/release-5.1 http://www.securityfocus.com/bid/30339 http://www.securitytracker.com/id?1020537 http://www.vupen.com/english/advisories/2008/2148 https://exchange.xforce.ibmcloud.com/vulnerabilities/43940 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2007-4752 – openssh falls back to the trusted x11 cookie if generation of an untrusted cookie fails
https://notcve.org/view.php?id=CVE-2007-4752
ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted. ssh en OpenSSH anterior a 4.7 no maneja adecuadamente cuando una cookie no confiable no puede ser creada y utiliza una cookie X11 confiable en su lugar, lo cual permite a los atacantes violar políticas establecidas y obtener privilegios provocando que un cliente X sea tratado como confiable. • http://bugs.gentoo.org/show_bug.cgi?id=191321 http://docs.info.apple.com/article.html?artnum=307562 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01271085 http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2007-10/msg00008.html http://secunia.com/advisories/27399 http://secunia.com/advisories/29420 http://secunia.com/advisories/30249 http://secunia.com/advisories/31575 http://secunia. • CWE-20: Improper Input Validation •