SB2025021950 - Amazon Linux AMI update for samba

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Main Vulnerability Database SB2025021950

SB2025021950 - Amazon Linux AMI update for samba

Published: February 19, 2025

Security Bulletin ID SB2025021950
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 40% Low 60%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Improper access control (CVE-ID: CVE-2018-14628)

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.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-25720)

The vulnerability allows a local user to escalate privileges within the network.

The vulnerability exists due to create child permissions allows full write access to all attributes. A local user can escalate privileges within the network.


3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-0225)

The vulnerability allows a remote user to delete certain attributes.

The vulnerability exists due to improper access restrictions. A remote unprivileged user can delete the "dnsHostname" attribute.


4) Improper access control (CVE-ID: CVE-2023-0614)

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

The vulnerability exists due to insufficient patch for vulnerability #VU14335 (CVE-2018-10919). A remote user can bypass implemented security restrictions and gain access to sensitive information.


5) Cleartext transmission of sensitive information (CVE-ID: CVE-2023-0922)

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

The vulnerability exists due to samba-tool transmits credentials to the LDAP server in clear text. A remote attacker with ability to intercept network traffic can gain access to sensitive data.


Remediation

Install update from vendor's website.

References