Detections
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GLSA-201909-08 : D-Bus: Authentication bypass

high Nessus Plugin ID 128597

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201909-08 (D-Bus: Authentication bypass)

 It was discovered that a local attacker could manipulate symbolic links in their own home directory to bypass authentication and connect to a DBusServer with elevated privileges.
 Impact :

 A local attacker can bypass authentication mechanisms and elevate privileges.
 Workaround :

 There is no known workaround at this time.

Solution

All D-Bus users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=sys-apps/dbus-1.12.16'

See Also

https://security.gentoo.org/glsa/201909-08

Plugin Details

Severity: High

ID: 128597

File Name: gentoo_GLSA-201909-08.nasl

Version: 1.2

Type: local

Published: 9/9/2019

Updated: 12/31/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

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

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:dbus, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2019

Vulnerability Publication Date: 6/11/2019

Reference Information

CVE: CVE-2019-12749

GLSA: 201909-08