Detections
Analytics

Amazon Linux 2023 : libnetapi, libnetapi-devel, libsmbclient (ALAS2023-2023-316)

medium Nessus Plugin ID 180121

Language:

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-316 advisory.

 When doing NTLM authentication, the client sends replies tocryptographic challenges back to the server.
 These replieshave variable length. Winbind did not properly bounds-checkthe lan manager response length, which despite the lanmanager version no longer being used is still part of theprotocol.

 If the system is running Samba's ntlm_auth as authentication backendfor services like Squid (or a very unusual configuration withFreeRADIUS), the vulnarebility is remotely exploitable

 If not so configured, or to exploit this vulnerability locally, theuser must have access to the privileged winbindd UNIX domainsocket (a subdirectory with name 'winbindd_privileged' under statedirectory, as set in the smb.conf).

 This access is normally only given so special system services likeSquid or FreeRADIUS, that use this feature. (CVE-2022-2127)

 SMB2 packet signing not enforced

 NOTE: https://www.samba.org/samba/security/CVE-2023-3347.html (CVE-2023-3347)

 Samba Spotlight mdssvc RPC Request Infinite Loop Denial-of-Service Vulnerability

 NOTE: https://www.samba.org/samba/security/CVE-2023-34966.html (CVE-2023-34966)

 Samba Spotlight mdssvc RPC Request Type Confusion Denial-of-Service Vulnerability

 NOTE: https://www.samba.org/samba/security/CVE-2023-34967.html (CVE-2023-34967)

 Spotlight server-side Share Path Disclosure

 NOTE: https://www.samba.org/samba/security/CVE-2023-34968.html (CVE-2023-34968)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'dnf update samba --releasever 2023.1.20230823' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-316.html

https://alas.aws.amazon.com/cve/html/CVE-2022-2127.html

https://alas.aws.amazon.com/cve/html/CVE-2023-3347.html

https://alas.aws.amazon.com/cve/html/CVE-2023-34966.html

https://alas.aws.amazon.com/cve/html/CVE-2023-34967.html

https://alas.aws.amazon.com/cve/html/CVE-2023-34968.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 180121

File Name: al2023_ALAS2023-2023-316.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/24/2023

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2023-3347

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:samba-winbind-clients-debuginfo, p-cpe:/a:amazon:linux:python3-samba-debuginfo, p-cpe:/a:amazon:linux:samba-tools, p-cpe:/a:amazon:linux:samba-krb5-printing, p-cpe:/a:amazon:linux:samba-libs-debuginfo, p-cpe:/a:amazon:linux:samba-dcerpc-debuginfo, p-cpe:/a:amazon:linux:samba-vfs-iouring-debuginfo, p-cpe:/a:amazon:linux:samba-winbind, p-cpe:/a:amazon:linux:samba-debuginfo, p-cpe:/a:amazon:linux:python3-samba, p-cpe:/a:amazon:linux:samba-winbind-modules-debuginfo, p-cpe:/a:amazon:linux:samba-dc-libs-debuginfo, p-cpe:/a:amazon:linux:libsmbclient, p-cpe:/a:amazon:linux:samba, p-cpe:/a:amazon:linux:samba-pidl, p-cpe:/a:amazon:linux:libsmbclient-debuginfo, p-cpe:/a:amazon:linux:libwbclient, p-cpe:/a:amazon:linux:samba-common-libs, p-cpe:/a:amazon:linux:samba-dcerpc, p-cpe:/a:amazon:linux:samba-libs, p-cpe:/a:amazon:linux:samba-test-libs-debuginfo, p-cpe:/a:amazon:linux:samba-usershares, p-cpe:/a:amazon:linux:samba-vfs-iouring, p-cpe:/a:amazon:linux:samba-winbind-krb5-locator, p-cpe:/a:amazon:linux:samba-common-tools-debuginfo, p-cpe:/a:amazon:linux:samba-debugsource, p-cpe:/a:amazon:linux:samba-test, p-cpe:/a:amazon:linux:samba-client-libs, p-cpe:/a:amazon:linux:samba-client-debuginfo, p-cpe:/a:amazon:linux:libnetapi-debuginfo, p-cpe:/a:amazon:linux:samba-winbind-krb5-locator-debuginfo, p-cpe:/a:amazon:linux:samba-test-libs, p-cpe:/a:amazon:linux:samba-winbind-debuginfo, p-cpe:/a:amazon:linux:libnetapi, p-cpe:/a:amazon:linux:libwbclient-debuginfo, p-cpe:/a:amazon:linux:samba-ldb-ldap-modules-debuginfo, p-cpe:/a:amazon:linux:libwbclient-devel, p-cpe:/a:amazon:linux:samba-winbind-clients, p-cpe:/a:amazon:linux:samba-common-libs-debuginfo, p-cpe:/a:amazon:linux:samba-ldb-ldap-modules, p-cpe:/a:amazon:linux:samba-client-libs-debuginfo, p-cpe:/a:amazon:linux:samba-devel, p-cpe:/a:amazon:linux:samba-common, p-cpe:/a:amazon:linux:libsmbclient-devel, p-cpe:/a:amazon:linux:libnetapi-devel, p-cpe:/a:amazon:linux:python3-samba-dc-debuginfo, p-cpe:/a:amazon:linux:samba-dc-libs, p-cpe:/a:amazon:linux:python3-samba-dc, p-cpe:/a:amazon:linux:samba-krb5-printing-debuginfo, p-cpe:/a:amazon:linux:samba-winbind-modules, p-cpe:/a:amazon:linux:samba-test-debuginfo, p-cpe:/a:amazon:linux:python3-samba-devel, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:samba-client, p-cpe:/a:amazon:linux:python3-samba-test, p-cpe:/a:amazon:linux:samba-common-tools

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/17/2023

Vulnerability Publication Date: 7/20/2023

Reference Information

CVE: CVE-2022-2127, CVE-2023-3347, CVE-2023-34966, CVE-2023-34967, CVE-2023-34968

IAVA: 2023-A-0376-S