CVE-2023-3347
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-3347
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3347.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-3347
- Downstream
- Related
- Published
- 2023-07-20T15:15:11Z
- Modified
- 2025-10-21T13:17:28.559988Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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://access.redhat.com/errata/RHSA-2023:4325
- https://access.redhat.com/errata/RHSA-2023:4328
- https://access.redhat.com/security/cve/CVE-2023-3347
- https://bugzilla.redhat.com/show_bug.cgi?id=2222792
- https://www.samba.org/samba/security/CVE-2023-3347.html
- https://security.netapp.com/advisory/ntap-20230731-0010/
- https://www.debian.org/security/2023/dsa-5477
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/