CVE-2023-3347

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.

References

Affected packages

Git / github.com/samba-team/samba

Affected ranges

Type

GIT

Repo

https://github.com/samba-team/samba

Events

Introduced

fbec737d9d3d992b54f52defcba62a304efef8f7

Fixed

5eceb0dfb4a6490da3e7fc58f4b527b16b934195

Introduced

a597a8767fabfe85ee0bcf869407e770a0c3e184

Fixed

50a9b496556c08a451d8f18707fa709de69942ec

Introduced

Last affected

4fba936a8ab9afbdb7eaf2789d57850fbec35a77

Database specific

{
    "versions": [
        {
            "introduced": "4.17.0"
        },
        {
            "fixed": "4.17.10"
        },
        {
            "introduced": "4.18.0"
        },
        {
            "fixed": "4.18.5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.0"
        }
    ]
}

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "38"
            }
        ]
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3347.json"