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SUSE SLES15 Security Update : samba (SUSE-SU-2023:4096-1)

medium Nessus Plugin ID 183282

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4096-1 advisory.

 - The vulnerability exists due to an error in the way SMB protocol implementation in Samba handles file operations. A remote user can request read-only access to files and then truncate them to 0 bytes by opening files with OVERWRITE disposition when using the acl_xattr Samba VFS module with the smb.conf setting acl_xattr:ignore system acls = yes. (CVE-2023-4091)

 - The vulnerability exists due to a design error in Samba's implementation of the DirSync control, which can allow replication of critical domain passwords and secrets by Active Directory accounts authorized to do some replication, but not to replicate sensitive attributes. A remote user can obtain sensitive information from the AD DC and compromise the Active Directory. (CVE-2023-4154)

 - The vulnerability exists due to inclusion of the rpcecho server into production build, which can call sleep() on AD DC. A remote user can request the server block using the rpcecho server and perform a denial of service (DoS) attack. (CVE-2023-42669)

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

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1215904

https://bugzilla.suse.com/1215905

https://bugzilla.suse.com/1215908

https://lists.suse.com/pipermail/sle-updates/2023-October/032195.html

https://www.suse.com/security/cve/CVE-2023-4091

https://www.suse.com/security/cve/CVE-2023-4154

https://www.suse.com/security/cve/CVE-2023-42669

Plugin Details

Severity: Medium

ID: 183282

File Name: suse_SU-2023-4096-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/18/2023

Updated: 11/16/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2023-4154

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:samba-client-libs-32bit, p-cpe:/a:novell:suse_linux:samba-gpupdate, p-cpe:/a:novell:suse_linux:samba-winbind, p-cpe:/a:novell:suse_linux:samba-ldb-ldap, p-cpe:/a:novell:suse_linux:samba-python3, p-cpe:/a:novell:suse_linux:samba-winbind-libs, p-cpe:/a:novell:suse_linux:samba-ad-dc-libs, p-cpe:/a:novell:suse_linux:samba-ad-dc-libs-32bit, p-cpe:/a:novell:suse_linux:libsamba-policy-devel, p-cpe:/a:novell:suse_linux:samba, p-cpe:/a:novell:suse_linux:samba-ceph, p-cpe:/a:novell:suse_linux:samba-libs-python3, p-cpe:/a:novell:suse_linux:samba-dsdb-modules, p-cpe:/a:novell:suse_linux:libsamba-policy-python3-devel, p-cpe:/a:novell:suse_linux:samba-client, p-cpe:/a:novell:suse_linux:samba-client-libs, p-cpe:/a:novell:suse_linux:samba-libs-32bit, p-cpe:/a:novell:suse_linux:samba-devel, p-cpe:/a:novell:suse_linux:samba-devel-32bit, p-cpe:/a:novell:suse_linux:samba-tool, p-cpe:/a:novell:suse_linux:ctdb, p-cpe:/a:novell:suse_linux:samba-libs, p-cpe:/a:novell:suse_linux:samba-winbind-libs-32bit, p-cpe:/a:novell:suse_linux:samba-client-32bit, p-cpe:/a:novell:suse_linux:libsamba-policy0-python3, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:samba-ad-dc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/17/2023

Vulnerability Publication Date: 10/10/2023

Reference Information

CVE: CVE-2023-4091, CVE-2023-4154, CVE-2023-42669

IAVA: 2023-A-0535

SuSE: SUSE-SU-2023:4096-1