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CVE-2023-3347

Samba: smb2 packet signing is not enforced when "server signing = required" is set

Published: Jul 20, 2023Updated: Dec 6, 2024 Sources: CVE List NVD BDUCWE-347
5.9MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 64.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-347NVD-CWE-noinfoCWE-924

Affected Products

Red Hat Inc.
commercial·USaka redhat, Red Hat
storageOn-prem
Operating Systems / linux-distro
Red Hat Enterprise Linux 8On-premOS
Operating Systems / linux-distro
Red Hat Storage 3On-premDatabase
Databases / data-warehouse-analytics
Red Hat StorageOn-prem
Operating Systems / linux-distro
samba
oss-project·DE
sambaLibraryLibrary
Operating Systems / unix-bsd
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
Fedora Project
oss-project·USaka fedora
FedoraOn-premOS
Operating Systems / linux-distro
Samba Team
oss-project·AUaka samba
SambaLibraryLibrary
OSS Libraries / generic-library
and 6 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://access.redhat.com/errata/RHSA-2023:4325
access.redhat.com
https://access.redhat.com/errata/RHSA-2023:4328
access.redhat.com
https://access.redhat.com/security/cve/CVE-2023-3347
access.redhat.com
and 11 more references View all →

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