Rapid7 Vulnerability & Exploit Database

Oracle Linux: CVE-2021-44141: ELSA-2022-2074: samba security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Oracle Linux: CVE-2021-44141: ELSA-2022-2074: samba security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:C/I:N/A:N)
Published
01/31/2022
Created
05/20/2022
Added
05/18/2022
Modified
12/06/2024

Description

All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed. A vulnerability was found in Samba due to an insecure link following. By querying a symlink inside the exported share using SMB1 with unix extensions turned on, an attacker can discover if a named or directory exists on the filesystem outside the exported share. This flaw allows a remote authenticated attacker to obtain sensitive information.

Solution(s)

  • oracle-linux-upgrade-ctdb
  • oracle-linux-upgrade-libsmbclient
  • oracle-linux-upgrade-libsmbclient-devel
  • oracle-linux-upgrade-libwbclient
  • oracle-linux-upgrade-libwbclient-devel
  • oracle-linux-upgrade-python3-samba
  • oracle-linux-upgrade-python3-samba-test
  • oracle-linux-upgrade-samba
  • oracle-linux-upgrade-samba-client
  • oracle-linux-upgrade-samba-client-libs
  • oracle-linux-upgrade-samba-common
  • oracle-linux-upgrade-samba-common-libs
  • oracle-linux-upgrade-samba-common-tools
  • oracle-linux-upgrade-samba-devel
  • oracle-linux-upgrade-samba-krb5-printing
  • oracle-linux-upgrade-samba-libs
  • oracle-linux-upgrade-samba-pidl
  • oracle-linux-upgrade-samba-test
  • oracle-linux-upgrade-samba-test-libs
  • oracle-linux-upgrade-samba-vfs-iouring
  • oracle-linux-upgrade-samba-winbind
  • oracle-linux-upgrade-samba-winbind-clients
  • oracle-linux-upgrade-samba-winbind-krb5-locator
  • oracle-linux-upgrade-samba-winbind-modules
  • oracle-linux-upgrade-samba-winexe

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;