CVE-2023-3347
Medium
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.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Samba
PublishedJul 20, 2023
First seenJul 20, 2023
Weakness typeCWE-347CWE-347
How to fix
Update
- samba samba4.17.10, 4.18.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| samba samba | 4.17.0 ≤ v < 4.17.10, 4.18.0 ≤ v < 4.18.5 | 4.17.10, 4.18.5 |
| redhat storage | 3.0 | — |
| redhat enterprise_linux | 8.0, 9.0 | — |
| fedoraproject fedora | 38 | — |
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