The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5439 advisory.

  - A flaw was found in the way samba handled file and directory permissions. An authenticated user could use     this flaw to gain access to certain file and directory information which otherwise would be unavailable to     the attacker. (CVE-2020-14318)

  - A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before     4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of     service. (CVE-2020-14323)

  - An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure     channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who     successfully exploited the vulnerability could run a specially crafted application on a device on the     network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to     connect to a domain controller to obtain domain administrator access. Microsoft is addressing the     vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how     Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes     required for this vulnerability and more information on the phased rollout, see How to manage the changes     in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When     the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision     to this security vulnerability. If you wish to be notified when these updates are released, we recommend     that you register for the security notifications mailer to be alerted of content changes to this advisory.
    See Microsoft Technical Security Notifications. (CVE-2020-1472)

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

Detections

Analytics

CentOS 7 : samba (RHSA-2020:5439)

medium Nessus Plugin ID 144973

Version 1.9

Version 1.8

Version 1.7

Version 1.9 Jan 30, 2024, 3:19 PM CVSS metrics ("CVSSv3 score" set to 5.5. "CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N") CVSSv3 severity (based on None, severity decreased from "High" to "Medium") Plugin Feed: 202401301519
Version 1.8 May 24, 2023, 12:08 AM CEA reference Plugin Feed: 202305240008
Version 1.7 Dec 7, 2022, 4:47 PM Reference Plugin Feed: 202212071647