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[email protected]CVE-2023-3961

HistoryNov 03, 2023 - 1:15 p.m.

CVE-2023-3961

2023-11-0313:15:08

CWE-22

[email protected]

web.nvd.nist.gov

160

cve-2023-3961

samba

path traversal

vulnerability

unix domain sockets

smb

rpc

samr

lsa

spoolss

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.1 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

62.1%

JSON

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.

Affected configurations

NVD

Node

sambasambaRange<4.17.12

sambasambaRange4.18.0–4.18.8

sambasambaRange4.19.0–4.19.1

Node

redhatstorageMatch3.0

redhatenterprise_linuxMatch8.0

redhatenterprise_linux_eusMatch9.0

Node

fedoraprojectfedoraMatch39

CPENameOperatorVersion
samba:sambasambalt4.17.12
samba:sambasambalt4.18.8
samba:sambasambalt4.19.1

CPE	Name	Operator	Version
samba:samba	samba	lt	4.17.12
samba:samba	samba	lt	4.18.8
samba:samba	samba	lt	4.19.1

CNA Affected

[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.18.6-2.el8_9",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::appstream",
      "cpe:/a:redhat:enterprise_linux:8::crb",
      "cpe:/o:redhat:enterprise_linux:8::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.18.6-2.el8_9",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:8::appstream",
      "cpe:/a:redhat:enterprise_linux:8::crb",
      "cpe:/o:redhat:enterprise_linux:8::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.15.5-13.el8_6",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:rhev_hypervisor:4.4::el8",
      "cpe:/a:redhat:rhel_eus:8.6::appstream",
      "cpe:/a:redhat:rhel_eus:8.6::crb",
      "cpe:/o:redhat:rhel_eus:8.6::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8.8 Extended Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.17.5-4.el8_8",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_eus:8.8::crb",
      "cpe:/a:redhat:rhel_eus:8.8::appstream",
      "cpe:/o:redhat:rhel_eus:8.8::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.18.6-101.el9_3",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/o:redhat:enterprise_linux:9::baseos",
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::resilientstorage"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.18.6-101.el9_3",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:enterprise_linux:9::crb",
      "cpe:/o:redhat:enterprise_linux:9::baseos",
      "cpe:/a:redhat:enterprise_linux:9::appstream",
      "cpe:/a:redhat:enterprise_linux:9::resilientstorage"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.0 Extended Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.15.5-111.el9_0",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:rhel_eus:9.0::crb",
      "cpe:/a:redhat:rhel_eus:9.0::appstream",
      "cpe:/a:redhat:rhel_eus:9.0::resilientstorage",
      "cpe:/o:redhat:rhel_eus:9.0::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.2 Extended Update Support",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.17.5-104.el9_2",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:rhel_eus:9.2::baseos",
      "cpe:/a:redhat:rhel_eus:9.2::appstream",
      "cpe:/a:redhat:rhel_eus:9.2::resilientstorage",
      "cpe:/a:redhat:rhel_eus:9.2::crb"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:4.15.5-13.el8_6",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:rhev_hypervisor:4.4::el8",
      "cpe:/a:redhat:rhel_eus:8.6::appstream",
      "cpe:/a:redhat:rhel_eus:8.6::crb",
      "cpe:/o:redhat:rhel_eus:8.6::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba4",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Storage 3",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "samba",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:storage:3"
    ]
  }
]