CVSS: 7.5EPSS: 1%CPEs: 6EXPL: 1CVE-2017-2619 – Samba 4.5.2 - Symlink Race Permits Opening Files Outside Share Directory
https://notcve.org/view.php?id=CVE-2017-2619
Samba before versions 4.6.1, 4.5.7 and 4.4.11 are vulnerable to a malicious client using a symlink race to allow access to areas of the server file system not exported under the share definition. Samba, en versiones anteriores a 4.6.1, 4.5.7 y 4.4.11, es vulnerable a un cliente malicioso que emplee una carrera symlink para permitir el acceso a áreas del sistema de archivos del servidor que no se exportan bajo la definición compartida. A race condition was found in samba server. A malicious samba client could use this flaw to access files and directories in areas of the server file system not exported under the share definitions. Samba suffers from a symlink race that permits opening files outside of the share directory. • https://www.exploit-db.com/exploits/41740 http://www.securityfocus.com/bid/97033 http://www.securitytracker.com/id/1038117 https://access.redhat.com/errata/RHSA-2017:1265 https://access.redhat.com/errata/RHSA-2017:2338 https://access.redhat.com/errata/RHSA-2017:2778 https://access.redhat.com/errata/RHSA-2017:2789 https://bugzilla.redhat.com/show_bug.cgi?id=1429472 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us https:/& • CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.9EPSS: 0%CPEs: 251EXPL: 0CVE-2016-2110 – samba: Man-in-the-middle attacks possible with NTLMSSP authentication
https://notcve.org/view.php?id=CVE-2016-2110
The NTLMSSP authentication implementation in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 allows man-in-the-middle attackers to perform protocol-downgrade attacks by modifying the client-server data stream to remove application-layer flags or encryption settings, as demonstrated by clearing the NTLMSSP_NEGOTIATE_SEAL or NTLMSSP_NEGOTIATE_SIGN option to disrupt LDAP security. La implementación de autenticación NTLMSSP en Samba 3.x y 4.x en versiones anteriores a 4.2.11, 4.3.x en versiones anteriores a 4.3.8 y 4.4.x en versiones anteriores a 4.4.2 permite a atacantes man-in-the-middle llevar a cabo ataques de degradación de protocolo modificando el flujo de datos cliente-servidor para eliminar indicadores de la capa de aplicación o ajustes de cifrado, según lo demostrado limpiando la opción NTLMSSP_NEGOTIATE_SEAL o NTLMSSP_NEGOTIATE_SIGN para interrumpir la seguridad LDAP. Several flaws were found in Samba's implementation of NTLMSSP authentication. An unauthenticated, man-in-the-middle attacker could use this flaw to clear the encryption and integrity flags of a connection, causing data to be transmitted in plain text. The attacker could also force the client or server into sending data in plain text even if encryption was explicitly requested for that connection. • http://badlock.org http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html http://lists.opensuse.or • CWE-254: 7PK - Security Features CWE-300: Channel Accessible by Non-Endpoint •
CVSS: 5.9EPSS: 0%CPEs: 251EXPL: 0CVE-2016-2112 – samba: Missing downgrade detection
https://notcve.org/view.php?id=CVE-2016-2112
The bundled LDAP client library in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "client ldap sasl wrapping" setting, which allows man-in-the-middle attackers to perform LDAP protocol-downgrade attacks by modifying the client-server data stream. El paquete de la librería cliente LDAP en Samba 3.x y 4.x en versiones anteriores a 4.2.11, 4.3.x en versiones anteriores a 4.3.8 y 4.4.x en versiones anteriores a 4.4.2 no reconoce el ajuste "client ldap sasl wrapping", lo que permite a atacantes man-in-the-middle llevar a cabo ataques de degradación de protocolo LDAP modificando el flujo de datos cliente-servidor. It was found that Samba's LDAP implementation did not enforce integrity protection for LDAP connections. A man-in-the-middle attacker could use this flaw to downgrade LDAP connections to use no integrity protection, allowing them to hijack such connections. • http://badlock.org http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html http://lists.opensuse.or • CWE-254: 7PK - Security Features CWE-300: Channel Accessible by Non-Endpoint •
CVSS: 5.9EPSS: 0%CPEs: 251EXPL: 0CVE-2016-2115 – samba: Smb signing not required by default when smb client connection is used for ipc usage
https://notcve.org/view.php?id=CVE-2016-2115
Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not require SMB signing within a DCERPC session over ncacn_np, which allows man-in-the-middle attackers to spoof SMB clients by modifying the client-server data stream. Samba 3.x y 4.x en versiones anteriores a 4.2.11, 4.3.x en versiones anteriores a 4.3.8 y 4.4.x en versiones anteriores a 4.4.2 no requiere firmado SMB dentro de una sesión DCERPC sobre ncacn_np, lo que permite a atacantes man-in-the-middle suplantar clientes SMB modificando el flujo de datos cliente-servidor It was found that Samba did not enable integrity protection for IPC traffic by default. A man-in-the-middle attacker could use this flaw to view and modify the data sent between a Samba server and a client. • http://badlock.org http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html http://lists.opensuse.or • CWE-254: 7PK - Security Features CWE-300: Channel Accessible by Non-Endpoint •
CVSS: 6.3EPSS: 0%CPEs: 251EXPL: 0CVE-2016-2111 – samba: Spoofing vulnerability when domain controller is configured
https://notcve.org/view.php?id=CVE-2016-2111
The NETLOGON service in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2, when a domain controller is configured, allows remote attackers to spoof the computer name of a secure channel's endpoint, and obtain sensitive session information, by running a crafted application and leveraging the ability to sniff network traffic, a related issue to CVE-2015-0005. El servicio NETLOGON en Samba 3.x y 4.x en versiones anteriores a 4.2.11, 4.3.x en versiones anteriores a 4.3.8 y 4.4.x en versiones anteriores a 4.4.2, cuando un controlador de dominio está configurado, permite a atacantes remotos suplantar el nombre del computador de un dispositivo final de un canal seguro y obtener información sensible de sesión, ejecutando una aplicación manipulada y aprovechando la habilidad para husmear tráfico de red, un problema relacionado con CVE-2015-0005. It was discovered that Samba configured as a Domain Controller would establish a secure communication channel with a machine using a spoofed computer name. A remote attacker able to observe network traffic could use this flaw to obtain session-related information about the spoofed machine. • http://badlock.org http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html http://lists.opensuse.or • CWE-254: 7PK - Security Features CWE-290: Authentication Bypass by Spoofing •