CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 3CVE-2019-19522
https://notcve.org/view.php?id=CVE-2019-19522
OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root. OpenBSD versión 6.6, en una configuración no predeterminada donde la autenticación S/Key o YubiKey está habilitada, permite a usuarios locales convertirse a root mediante el aprovechamiento de la membresía en el grupo de autenticación. Esto ocurre porque el archivo root puede ser escrito en /etc/skey o /var/db/yubikey, y no es necesario que sea propiedad de root. • http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html http://seclists.org/fulldisclosure/2019/Dec/14 http://www.openwall.com/lists/oss-security/2019/12/04/5 https://seclists.org/bugtraq/2019/Dec/8 https://www.openbsd.org/errata66.html https://www.openwall.com/lists/oss-security/2019/12/04/5 • CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 2CVE-2019-16905
https://notcve.org/view.php?id=CVE-2019-16905
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH. OpenSSH 7.7 a 7.9 y 8.x anterior de la versión 8.1, cuando se compila con un tipo de clave experimental, tiene un desbordamiento de entero de identificación previa si un cliente o servidor está configurado para usar una clave XMSS especialmente diseñada. Esto conduce a la corrupción de la memoria y la ejecución del código local debido a un error en el algoritmo de análisis de claves XMSS. • https://0day.life/exploits/0day-1009.html https://bugzilla.suse.com/show_bug.cgi?id=1153537 https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5&r2=1.6&f=h https://security.gentoo.org/glsa/201911-01 https://security.netapp.com/advisory/ntap-20191024-0003 https://ssd-disclosure.com/archives/4033&#x • CWE-190: Integer Overflow or Wraparound •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 2CVE-2019-8460
https://notcve.org/view.php?id=CVE-2019-8460
OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service. La versión del núcleo de OpenBSD anterior o igual a la versión 6.5 se puede forzar a crear largas cadenas de agujeros TCP SACK que provocan llamadas muy costosas a tcp_sack_option () para cada paquete SACK entrante que puede conducir a una denegación de servicio. • https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460 https://security.netapp.com/advisory/ntap-20190905-0001 https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03 • CWE-1049: Excessive Data Query Operations in a Large Data Table •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 1CVE-2019-6724
https://notcve.org/view.php?id=CVE-2019-6724
The barracudavpn component of the Barracuda VPN Client prior to version 5.0.2.7 for Linux, macOS, and OpenBSD runs as a privileged process and can allow an unprivileged local attacker to load a malicious library, resulting in arbitrary code executing as root. El componente barracudavpn de Barracuda VPN Client, en versiones anteriores a la 5.0.2.7 para Linux, macOS y OpenBSD, se ejecuta como proceso privilegiado y puede permitir que un atacante local sin privilegios cargue una librería maliciosa, lo que resulta en la ejecución de código arbitrario como root. • http://campus.barracuda.com/product/networkaccessclient/doc/78154147/release-notes-barracuda-vpn-client-for-macos https://blog.mirch.io/2019/02/14/cve-2019-6724-barracuda-vpn-client-privilege-escalation-on-linux-and-macos https://campus.barracuda.com/product/networkaccessclient/doc/78154149/release-notes-barracuda-vpn-client-for-linux • CWE-426: Untrusted Search Path •
CVSS: 5.9EPSS: 0%CPEs: 55EXPL: 3CVE-2019-6111 – OpenSSH SCP Client - Write Arbitrary Files
https://notcve.org/view.php?id=CVE-2019-6111
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file). • https://www.exploit-db.com/exploits/46516 https://www.exploit-db.com/exploits/46193 http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html http://www.openwall.com/lists/oss-security/2019/04/18/1 http://www.openwall.com/lists/oss-security/2022/08/02/1 http://www.securityfocus.com/bid/106741 https://access.redhat.com/errata/RHSA-2019:3702 https://bugzilla.redhat.com/show_bug.cgi?id=1677794 https://cert-portal.siemens.com/productcert/pdf/ssa-412672&# • CWE-20: Improper Input Validation CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •