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Ubuntu 16.04 LTS / 18.04 LTS : DBus vulnerability (USN-4015-1)

high Nessus Plugin ID 125852

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4015-1 advisory.

 Joe Vennix discovered that DBus incorrectly handled DBUS_COOKIE_SHA1 authentication. A local attacker could possibly use this issue to bypass authentication and connect to DBus servers with elevated privileges.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4015-1

Plugin Details

Severity: High

ID: 125852

File Name: ubuntu_USN-4015-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 6/12/2019

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

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 Score Source: CVE-2019-12749

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:canonical:ubuntu_linux:dbus, p-cpe:/a:canonical:ubuntu_linux:libdbus-1-dev, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libdbus-1-3-udeb, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:dbus-x11, p-cpe:/a:canonical:ubuntu_linux:dbus-tests, p-cpe:/a:canonical:ubuntu_linux:dbus-udeb, p-cpe:/a:canonical:ubuntu_linux:dbus-user-session, p-cpe:/a:canonical:ubuntu_linux:libdbus-1-3

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2019

Vulnerability Publication Date: 6/11/2019

Reference Information

CVE: CVE-2019-12749

USN: 4015-1