Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2023-3347: SMB2 packet signing is not enforced when "server signing = required" is set (Multiple Advisories)

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

Red Hat: CVE-2023-3347: SMB2 packet signing is not enforced when "server signing = required" is set (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/20/2023
Created
08/02/2023
Added
08/01/2023
Modified
09/03/2024

Description

A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and server, affecting the integrity of the data.

Solution(s)

  • redhat-upgrade-ctdb
  • redhat-upgrade-ctdb-debuginfo
  • redhat-upgrade-libnetapi
  • redhat-upgrade-libnetapi-debuginfo
  • redhat-upgrade-libnetapi-devel
  • redhat-upgrade-libsmbclient
  • redhat-upgrade-libsmbclient-debuginfo
  • redhat-upgrade-libsmbclient-devel
  • redhat-upgrade-libwbclient
  • redhat-upgrade-libwbclient-debuginfo
  • redhat-upgrade-libwbclient-devel
  • redhat-upgrade-python3-samba
  • redhat-upgrade-python3-samba-dc
  • redhat-upgrade-python3-samba-dc-debuginfo
  • redhat-upgrade-python3-samba-debuginfo
  • redhat-upgrade-python3-samba-devel
  • redhat-upgrade-python3-samba-test
  • redhat-upgrade-samba
  • redhat-upgrade-samba-client
  • redhat-upgrade-samba-client-debuginfo
  • redhat-upgrade-samba-client-libs
  • redhat-upgrade-samba-client-libs-debuginfo
  • redhat-upgrade-samba-common
  • redhat-upgrade-samba-common-libs
  • redhat-upgrade-samba-common-libs-debuginfo
  • redhat-upgrade-samba-common-tools
  • redhat-upgrade-samba-common-tools-debuginfo
  • redhat-upgrade-samba-dc-libs
  • redhat-upgrade-samba-dc-libs-debuginfo
  • redhat-upgrade-samba-dcerpc
  • redhat-upgrade-samba-dcerpc-debuginfo
  • redhat-upgrade-samba-debuginfo
  • redhat-upgrade-samba-debugsource
  • redhat-upgrade-samba-devel
  • redhat-upgrade-samba-krb5-printing
  • redhat-upgrade-samba-krb5-printing-debuginfo
  • redhat-upgrade-samba-ldb-ldap-modules
  • redhat-upgrade-samba-ldb-ldap-modules-debuginfo
  • redhat-upgrade-samba-libs
  • redhat-upgrade-samba-libs-debuginfo
  • redhat-upgrade-samba-pidl
  • redhat-upgrade-samba-test
  • redhat-upgrade-samba-test-debuginfo
  • redhat-upgrade-samba-test-libs
  • redhat-upgrade-samba-test-libs-debuginfo
  • redhat-upgrade-samba-tools
  • redhat-upgrade-samba-usershares
  • redhat-upgrade-samba-vfs-iouring
  • redhat-upgrade-samba-vfs-iouring-debuginfo
  • redhat-upgrade-samba-winbind
  • redhat-upgrade-samba-winbind-clients
  • redhat-upgrade-samba-winbind-clients-debuginfo
  • redhat-upgrade-samba-winbind-debuginfo
  • redhat-upgrade-samba-winbind-krb5-locator
  • redhat-upgrade-samba-winbind-krb5-locator-debuginfo
  • redhat-upgrade-samba-winbind-modules
  • redhat-upgrade-samba-winbind-modules-debuginfo
  • redhat-upgrade-samba-winexe
  • redhat-upgrade-samba-winexe-debuginfo

References

  • CVE-2023-3347
  • RHSA-2023:4325
  • RHSA-2023:4328

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

;