Detections
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Samba 4.8.0 < 4.8.10 / 4.9.x < 4.9.6 / 4.10.0 < 4.10.2 Path/Symlink Traversal Vulnerability (CVE-2019-3890)

medium Nessus Plugin ID 124088

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Synopsis

The remote Samba server is potentially affected by a path/symlink traversal vulnerability.

Description

The version of Samba running on the remote host is 4.8.x < 4.8.11 or 4.9.x < 4.9.6 or 4.10.0 prior to 4.10.2. It is, therefore, potentially affected by a path/symlink traversal vulnerability. An authenticated, unpriviledged attacker can exploit this issue anywhere they have unix permissions to create a new file within the Samba share. If they are able to create symlinks on a Samba share, they can create a new registry hive file anywhere they have write access, even outside of a Samba share definition.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Samba version 4.8.11 / 4.9.6 / 4.10.2 or later.

See Also

https://www.samba.org/samba/security/CVE-2019-3880.html

Plugin Details

Severity: Medium

ID: 124088

File Name: samba_CVE-2019-3880.nasl

Version: 1.4

Type: remote

Family: Misc.

Published: 4/16/2019

Updated: 10/30/2019

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.5

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2019-3880

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:samba:samba

Required KB Items: Settings/ParanoidReport, SMB/samba, SMB/NativeLanManager

Exploit Ease: No known exploits are available

Patch Publication Date: 4/8/2019

Vulnerability Publication Date: 4/8/2019

Reference Information

CVE: CVE-2019-3880

BID: 107799