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CVE-2023-3347

Public on 2023-07-20
Modified on 2024-01-30
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.

Severity
Medium
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CVSS v3 Base Score
6.8
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2023 samba 2023-08-17 11:20 ALAS2023-2023-316

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
NVD CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N