SUSE update for samba

Published: 2021-11-19

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2016-2124 CVE-2020-25717
CWE-ID	CWE-284 CWE-264
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Availability Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system ctdb-debuginfo Operating systems & Components / Operating system package or component ctdb Operating systems & Components / Operating system package or component samba-winbind-32bit-debuginfo Operating systems & Components / Operating system package or component samba-winbind-32bit Operating systems & Components / Operating system package or component samba-libs-32bit-debuginfo Operating systems & Components / Operating system package or component samba-libs-32bit Operating systems & Components / Operating system package or component samba-client-32bit-debuginfo Operating systems & Components / Operating system package or component samba-client-32bit Operating systems & Components / Operating system package or component libwbclient0-32bit-debuginfo Operating systems & Components / Operating system package or component libwbclient0-32bit Operating systems & Components / Operating system package or component libtevent-util0-32bit-debuginfo Operating systems & Components / Operating system package or component libtevent-util0-32bit Operating systems & Components / Operating system package or component libsmbldap2-32bit-debuginfo Operating systems & Components / Operating system package or component libsmbldap2-32bit Operating systems & Components / Operating system package or component libsmbconf0-32bit-debuginfo Operating systems & Components / Operating system package or component libsmbconf0-32bit Operating systems & Components / Operating system package or component libsmbclient0-32bit-debuginfo Operating systems & Components / Operating system package or component libsmbclient0-32bit Operating systems & Components / Operating system package or component libsamdb0-32bit-debuginfo Operating systems & Components / Operating system package or component libsamdb0-32bit Operating systems & Components / Operating system package or component libsamba-util0-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-util0-32bit Operating systems & Components / Operating system package or component libsamba-passdb0-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-passdb0-32bit Operating systems & Components / Operating system package or component libsamba-hostconfig0-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-hostconfig0-32bit Operating systems & Components / Operating system package or component libsamba-errors0-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-errors0-32bit Operating systems & Components / Operating system package or component libsamba-credentials0-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-credentials0-32bit Operating systems & Components / Operating system package or component libnetapi0-32bit-debuginfo Operating systems & Components / Operating system package or component libnetapi0-32bit Operating systems & Components / Operating system package or component libndr0-32bit-debuginfo Operating systems & Components / Operating system package or component libndr0-32bit Operating systems & Components / Operating system package or component libndr-standard0-32bit-debuginfo Operating systems & Components / Operating system package or component libndr-standard0-32bit Operating systems & Components / Operating system package or component libndr-nbt0-32bit-debuginfo Operating systems & Components / Operating system package or component libndr-nbt0-32bit Operating systems & Components / Operating system package or component libndr-krb5pac0-32bit-debuginfo Operating systems & Components / Operating system package or component libndr-krb5pac0-32bit Operating systems & Components / Operating system package or component libdcerpc0-32bit-debuginfo Operating systems & Components / Operating system package or component libdcerpc0-32bit Operating systems & Components / Operating system package or component libdcerpc-binding0-32bit-debuginfo Operating systems & Components / Operating system package or component libdcerpc-binding0-32bit Operating systems & Components / Operating system package or component samba-winbind-debuginfo Operating systems & Components / Operating system package or component samba-winbind Operating systems & Components / Operating system package or component samba-libs-debuginfo Operating systems & Components / Operating system package or component samba-libs Operating systems & Components / Operating system package or component samba-debugsource Operating systems & Components / Operating system package or component samba-debuginfo Operating systems & Components / Operating system package or component samba-core-devel Operating systems & Components / Operating system package or component samba-client-debuginfo Operating systems & Components / Operating system package or component samba-client Operating systems & Components / Operating system package or component samba Operating systems & Components / Operating system package or component libwbclient0-debuginfo Operating systems & Components / Operating system package or component libwbclient0 Operating systems & Components / Operating system package or component libwbclient-devel Operating systems & Components / Operating system package or component libtevent-util0-debuginfo Operating systems & Components / Operating system package or component libtevent-util0 Operating systems & Components / Operating system package or component libtevent-util-devel Operating systems & Components / Operating system package or component libsmbldap2-debuginfo Operating systems & Components / Operating system package or component libsmbldap2 Operating systems & Components / Operating system package or component libsmbldap-devel Operating systems & Components / Operating system package or component libsmbconf0-debuginfo Operating systems & Components / Operating system package or component libsmbconf0 Operating systems & Components / Operating system package or component libsmbconf-devel Operating systems & Components / Operating system package or component libsmbclient0-debuginfo Operating systems & Components / Operating system package or component libsmbclient0 Operating systems & Components / Operating system package or component libsmbclient-devel Operating systems & Components / Operating system package or component libsamdb0-debuginfo Operating systems & Components / Operating system package or component libsamdb0 Operating systems & Components / Operating system package or component libsamdb-devel Operating systems & Components / Operating system package or component libsamba-util0-debuginfo Operating systems & Components / Operating system package or component libsamba-util0 Operating systems & Components / Operating system package or component libsamba-util-devel Operating systems & Components / Operating system package or component libsamba-policy0 Operating systems & Components / Operating system package or component libsamba-policy-devel Operating systems & Components / Operating system package or component libsamba-passdb0-debuginfo Operating systems & Components / Operating system package or component libsamba-passdb0 Operating systems & Components / Operating system package or component libsamba-passdb-devel Operating systems & Components / Operating system package or component libsamba-hostconfig0-debuginfo Operating systems & Components / Operating system package or component libsamba-hostconfig0 Operating systems & Components / Operating system package or component libsamba-hostconfig-devel Operating systems & Components / Operating system package or component libsamba-errors0-debuginfo Operating systems & Components / Operating system package or component libsamba-errors0 Operating systems & Components / Operating system package or component libsamba-errors-devel Operating systems & Components / Operating system package or component libsamba-credentials0-debuginfo Operating systems & Components / Operating system package or component libsamba-credentials0 Operating systems & Components / Operating system package or component libsamba-credentials-devel Operating systems & Components / Operating system package or component libnetapi0-debuginfo Operating systems & Components / Operating system package or component libnetapi0 Operating systems & Components / Operating system package or component libnetapi-devel Operating systems & Components / Operating system package or component libndr0-debuginfo Operating systems & Components / Operating system package or component libndr0 Operating systems & Components / Operating system package or component libndr-standard0-debuginfo Operating systems & Components / Operating system package or component libndr-standard0 Operating systems & Components / Operating system package or component libndr-standard-devel Operating systems & Components / Operating system package or component libndr-nbt0-debuginfo Operating systems & Components / Operating system package or component libndr-nbt0 Operating systems & Components / Operating system package or component libndr-nbt-devel Operating systems & Components / Operating system package or component libndr-krb5pac0-debuginfo Operating systems & Components / Operating system package or component libndr-krb5pac0 Operating systems & Components / Operating system package or component libndr-krb5pac-devel Operating systems & Components / Operating system package or component libndr-devel Operating systems & Components / Operating system package or component libdcerpc0-debuginfo Operating systems & Components / Operating system package or component libdcerpc0 Operating systems & Components / Operating system package or component libdcerpc-samr0-debuginfo Operating systems & Components / Operating system package or component libdcerpc-samr0 Operating systems & Components / Operating system package or component libdcerpc-samr-devel Operating systems & Components / Operating system package or component libdcerpc-devel Operating systems & Components / Operating system package or component libdcerpc-binding0-debuginfo Operating systems & Components / Operating system package or component libdcerpc-binding0 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU58098

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2124

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to SMB1 client connections can be downgraded to plaintext authentication. A remote attacker can perform a man-in-the-middle attack and downgrade a negotiated SMB1 client connection and its capabitilities.

Mitigation

Update the affected package samba to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Availability: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

ctdb-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

ctdb: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-winbind-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-winbind-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-libs-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-libs-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-client-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-client-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libwbclient0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libwbclient0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libtevent-util0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libtevent-util0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbldap2-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbldap2-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbconf0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbconf0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbclient0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbclient0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamdb0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamdb0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-util0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-util0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-passdb0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-passdb0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-hostconfig0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-hostconfig0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-errors0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-errors0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-credentials0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-credentials0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libnetapi0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libnetapi0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-standard0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-standard0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-nbt0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-nbt0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-krb5pac0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-krb5pac0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-binding0-32bit-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-binding0-32bit: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-winbind-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-winbind: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-libs-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-libs: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-debugsource: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-core-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-client-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba-client: before 4.7.11+git.352.41e30c5a0f7-4.57.1

samba: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libwbclient0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libwbclient0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libwbclient-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libtevent-util0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libtevent-util0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libtevent-util-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbldap2-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbldap2: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbldap-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbconf0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbconf0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbconf-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbclient0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbclient0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsmbclient-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamdb0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamdb0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamdb-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-util0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-util0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-util-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-policy0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-policy-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-passdb0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-passdb0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-passdb-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-hostconfig0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-hostconfig0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-hostconfig-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-errors0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-errors0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-errors-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-credentials0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-credentials0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libsamba-credentials-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libnetapi0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libnetapi0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libnetapi-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-standard0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-standard0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-standard-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-nbt0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-nbt0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-nbt-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-krb5pac0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-krb5pac0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-krb5pac-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libndr-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-samr0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-samr0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-samr-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-devel: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-binding0-debuginfo: before 4.7.11+git.352.41e30c5a0f7-4.57.1

libdcerpc-binding0: before 4.7.11+git.352.41e30c5a0f7-4.57.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213747-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU58097

Risk: Medium

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25717

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the Windows Active Directory (AD) domains have by default a feature to allow users to create computer accounts. A remote authenticated attacker can create such account with elevated privileges on the system.