Slackware Linux update for samba

1) Improper access control

EUVDB-ID: #VU83535

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-14628

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to improper access restrictions when Samba is an Active Directory Domain Controller. When a domain was provisioned with an unpatched Samba version, the ntSecurityDescriptor is simply inherited from Domain/Partition-HEAD-Object instead of being very strict (as on a Windows provisioned domain). This means also non privileged users can use the LDAP_SERVER_SHOW_DELETED_OID control in order to view, the names and preserved attributes of deleted objects.

Mitigation

Update the affected package samba.

Vulnerable software versions

Slackware Linux: 15.0

samba: before 4.18.9

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2023&m=slackware-security.395566

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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