CVE-2023-3347

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.

References

https://www.samba.org/samba/security/CVE-2023-3347.html

https://www.debian.org/security/2023/dsa-5477

https://security.netapp.com/advisory/ntap-20230731-0010/

https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/

https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/

https://bugzilla.redhat.com/show_bug.cgi?id=2222792

https://access.redhat.com/security/cve/CVE-2023-3347

https://access.redhat.com/errata/RHSA-2023:4328

https://access.redhat.com/errata/RHSA-2023:4325

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3