CVE-2021-43566

low

Description

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.

References

https://www.samba.org/samba/security/CVE-2021-43566.html

https://security.netapp.com/advisory/ntap-20220110-0001/

https://bugzilla.samba.org/show_bug.cgi?id=13979

Details

Source: Mitre, NVD

Published: 2022-01-11

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 1.2

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 2.5

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Low