CVE-2023-3961 (GCVE-0-2023-3961)
Vulnerability from cvelistv5
Published
2023-11-03 12:32
Modified
2025-08-30 05:59
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
References
secalert@redhat.com https://access.redhat.com/errata/RHSA-2023:6209 Third Party Advisory
secalert@redhat.com https://access.redhat.com/errata/RHSA-2023:6744 Third Party Advisory
secalert@redhat.com https://access.redhat.com/errata/RHSA-2023:7371
secalert@redhat.com https://access.redhat.com/errata/RHSA-2023:7408
secalert@redhat.com https://access.redhat.com/errata/RHSA-2023:7464
secalert@redhat.com https://access.redhat.com/errata/RHSA-2023:7467
secalert@redhat.com https://access.redhat.com/security/cve/CVE-2023-3961 Third Party Advisory
secalert@redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2241881 Issue Tracking
secalert@redhat.com https://bugzilla.samba.org/show_bug.cgi?id=15422 Exploit, Issue Tracking
secalert@redhat.com https://www.samba.org/samba/security/CVE-2023-3961.html Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2023:6209 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2023:6744 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2023:7371
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2023:7408
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2023:7464
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2023:7467
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/security/cve/CVE-2023-3961 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.redhat.com/show_bug.cgi?id=2241881 Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.samba.org/show_bug.cgi?id=15422 Exploit, Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUMVALLFFDFC53JZMUWA6HPD7HUGAP5I/
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20231124-0002/
af854a3a-2127-422b-91ae-364da2661108 https://www.samba.org/samba/security/CVE-2023-3961.html Vendor Advisory
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.6-2.el8_9   < *
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.6-2.el8_9   < *
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.15.5-13.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
    cpe:/a:redhat:rhel_eus:8.6::appstream
    cpe:/a:redhat:rhel_eus:8.6::crb
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:4.17.5-4.el8_8   < *
    cpe:/a:redhat:rhel_eus:8.8::appstream
    cpe:/o:redhat:rhel_eus:8.8::baseos
    cpe:/a:redhat:rhel_eus:8.8::crb
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:4.18.6-101.el9_3   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::resilientstorage
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:4.18.6-101.el9_3   < *
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::resilientstorage
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:4.15.5-111.el9_0   < *
    cpe:/a:redhat:rhel_eus:9.0::resilientstorage
    cpe:/o:redhat:rhel_eus:9.0::baseos
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/a:redhat:rhel_eus:9.0::appstream
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:4.17.5-104.el9_2   < *
    cpe:/a:redhat:rhel_eus:9.2::appstream
    cpe:/a:redhat:rhel_eus:9.2::resilientstorage
    cpe:/o:redhat:rhel_eus:9.2::baseos
    cpe:/a:redhat:rhel_eus:9.2::crb
 Create a notification for this product.
   Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.15.5-13.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
    cpe:/a:redhat:rhel_eus:8.6::appstream
    cpe:/a:redhat:rhel_eus:8.6::crb
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
   Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
   Red Hat Red Hat Storage 3     cpe:/a:redhat:storage:3
 Create a notification for this product.
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    "datePublished": "2023-11-03T12:32:29.558Z",
    "dateReserved": "2023-07-26T21:21:23.933Z",
    "dateUpdated": "2025-08-30T05:59:14.976Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.\"},{\"lang\":\"es\",\"value\":\"Se identific\u00f3 una vulnerabilidad de path traversal en Samba al procesar nombres de canalizaciones de clientes que se conectan a sockets de dominio Unix dentro de un directorio privado. Samba normalmente usa este mecanismo para conectar clientes SMB a servicios de Remote Procedure Call (RPC) como SAMR LSA o SPOOLSS, que Samba inicia bajo demanda. Sin embargo, debido a una sanitizaci\u00f3n inadecuada de los nombres de canalizaci\u00f3n del cliente entrante, se permite que un cliente env\u00ede un nombre de canalizaci\u00f3n que contenga caracteres transversales del directorio Unix (../). Esto podr\u00eda provocar que los clientes SMB se conecten como root a sockets de dominio Unix fuera del directorio privado. Si un atacante o cliente lograra enviar un nombre de canalizaci\u00f3n a un servicio externo utilizando un socket de dominio Unix existente, podr\u00eda provocar un acceso no autorizado al servicio y los consiguientes eventos adversos, incluido el compromiso o la ca\u00edda del 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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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