Detections
Analytics

EulerOS 2.0 SP9 : samba (EulerOS-SA-2022-2743)

high Nessus Plugin ID 167389

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
 (CVE-2022-2031)

 - A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer). (CVE-2022-32742)

 - Samba does not validate the Validated-DNS-Host-Name right for the dNSHostName attribute which could permit unprivileged users to write it. (CVE-2022-32743)

 - A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any key known to it. By encrypting forged kpasswd requests with its own key, a user can change other users' passwords, enabling full domain takeover. (CVE-2022-32744)

 - A flaw was found in Samba. Samba AD users can cause the server to access uninitialized data with an LDAP add or modify the request, usually resulting in a segmentation fault. (CVE-2022-32745)

 - A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl. (CVE-2022-32746)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected samba packages.

See Also

http://www.nessus.org/u?28563733

Plugin Details

Severity: High

ID: 167389

File Name: EulerOS_SA-2022-2743.nasl

Version: 1.5

Type: local

Published: 11/14/2022

Updated: 10/4/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2022-32745

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2022-32744

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:samba-common, p-cpe:/a:huawei:euleros:samba-libs, cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:samba-winbind, p-cpe:/a:huawei:euleros:libsmbclient, p-cpe:/a:huawei:euleros:libwbclient, p-cpe:/a:huawei:euleros:samba-common-tools, p-cpe:/a:huawei:euleros:samba-winbind-clients, p-cpe:/a:huawei:euleros:samba, p-cpe:/a:huawei:euleros:samba-winbind-modules, p-cpe:/a:huawei:euleros:samba-client

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/14/2022

Vulnerability Publication Date: 7/27/2022

Reference Information

CVE: CVE-2022-2031, CVE-2022-32742, CVE-2022-32743, CVE-2022-32744, CVE-2022-32745, CVE-2022-32746

IAVA: 2022-A-0299-S