CVE-2023-3347
Published: Jul 20, 2023
Modified: Nov 20, 2025
CVSS v3.1
5.9
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.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:4.17.5-3.el8_8 - < * |
Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:4.17.5-3.el8_8 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:4.17.5-103.el9_2 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:4.17.5-103.el9_2 - < * |
Red Hat | Red Hat Enterprise Linux 6 | All versions |
Red Hat | Red Hat Enterprise Linux 6 | All versions |
Red Hat | Red Hat Enterprise Linux 7 | All versions |
Red Hat | Red Hat Storage 3 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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