RHEL 8 : samba (RHSA-2021:1647)

critical Nessus Plugin ID 149679

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1647 advisory.

- samba: Missing handle permissions check in SMB1/2/3 ChangeNotify (CVE-2020-14318)

- samba: Unprivileged user can crash winbind (CVE-2020-14323)

- samba: Netlogon elevation of privilege vulnerability (Zerologon) (CVE-2020-1472)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://cwe.mitre.org/data/definitions/170.html

https://cwe.mitre.org/data/definitions/266.html

https://cwe.mitre.org/data/definitions/287.html

https://access.redhat.com/security/cve/CVE-2020-1472

https://access.redhat.com/security/cve/CVE-2020-14318

https://access.redhat.com/security/cve/CVE-2020-14323

https://access.redhat.com/errata/RHSA-2021:1647

https://bugzilla.redhat.com/1879822

https://bugzilla.redhat.com/1891685

https://bugzilla.redhat.com/1892631

Plugin Details

Severity: Critical

ID: 149679

File Name: redhat-RHSA-2021-1647.nasl

Version: 1.9

Type: local

Agent: unix

Published: 5/19/2021

Updated: 2/25/2022

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

CVSS Score Source: CVE-2020-1472

VPR

Risk Factor: Critical

Score: 10

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_aus:8.4, cpe:/o:redhat:rhel_e4s:8.4, cpe:/o:redhat:rhel_eus:8.4, cpe:/o:redhat:rhel_tus:8.4, p-cpe:/a:redhat:enterprise_linux:ctdb, p-cpe:/a:redhat:enterprise_linux:ctdb-tests, p-cpe:/a:redhat:enterprise_linux:libsmbclient, p-cpe:/a:redhat:enterprise_linux:libsmbclient-devel, p-cpe:/a:redhat:enterprise_linux:libwbclient, p-cpe:/a:redhat:enterprise_linux:libwbclient-devel, p-cpe:/a:redhat:enterprise_linux:openchange, p-cpe:/a:redhat:enterprise_linux:python3-samba, p-cpe:/a:redhat:enterprise_linux:python3-samba-test, p-cpe:/a:redhat:enterprise_linux:samba, p-cpe:/a:redhat:enterprise_linux:samba-client, p-cpe:/a:redhat:enterprise_linux:samba-client-libs, p-cpe:/a:redhat:enterprise_linux:samba-common, p-cpe:/a:redhat:enterprise_linux:samba-common-libs, p-cpe:/a:redhat:enterprise_linux:samba-common-tools, p-cpe:/a:redhat:enterprise_linux:samba-devel, p-cpe:/a:redhat:enterprise_linux:samba-krb5-printing, p-cpe:/a:redhat:enterprise_linux:samba-libs, p-cpe:/a:redhat:enterprise_linux:samba-pidl, p-cpe:/a:redhat:enterprise_linux:samba-test, p-cpe:/a:redhat:enterprise_linux:samba-test-libs, p-cpe:/a:redhat:enterprise_linux:samba-winbind, p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator, p-cpe:/a:redhat:enterprise_linux:samba-winbind-modules, p-cpe:/a:redhat:enterprise_linux:samba-winexe

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/18/2021

Vulnerability Publication Date: 8/11/2020

CISA Known Exploited Dates: 9/21/2020

Reference Information

CVE: CVE-2020-1472, CVE-2020-14318, CVE-2020-14323

RHSA: 2021:1647

IAVA: 2020-A-0438-S, 2020-A-0367-S, 2020-A-0508-S

CISA-NCAS: AA22-011A

CWE: 170, 266, 287