Debian DLA-2240-1 : bluez security update

high Nessus Plugin ID 137282

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Synopsis

The remote Debian host is missing a security update.

Description

It was reported that the BlueZ's HID and HOGP profile implementations don't specifically require bonding between the device and the host.
Malicious devices can take advantage of this flaw to connect to a target host and impersonate an existing HID device without security or to cause an SDP or GATT service discovery to take place which would allow HID reports to be injected to the input subsystem from a non-bonded source.

For the HID profile an new configuration option (ClassicBondedOnly) is introduced to make sure that input connections only come from bonded device connections. The options defaults to 'false' to maximize device compatibility.

Note that as a result of the significant changes between the previous version in Jessie (based on upstream release 5.23) and the available patches to address this vulnerability, it was decided that a backport of the bluez package from Debian 9 'Stretch' was the only viable way to address the referenced vulnerability.

For Debian 8 'Jessie', this problem has been fixed in version 5.43-2+deb9u2~deb8u1.

We recommend that you upgrade your bluez packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 137282

File Name: debian_DLA-2240.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 6/10/2020

Updated: 3/7/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.0

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2020-0556

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bluez-hcidump, p-cpe:/a:debian:debian_linux:bluetooth, p-cpe:/a:debian:debian_linux:bluez, p-cpe:/a:debian:debian_linux:bluez-obexd, p-cpe:/a:debian:debian_linux:libbluetooth-dev, p-cpe:/a:debian:debian_linux:libbluetooth3-dbg, p-cpe:/a:debian:debian_linux:bluez-test-scripts, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:bluez-dbg, p-cpe:/a:debian:debian_linux:bluez-cups, p-cpe:/a:debian:debian_linux:libbluetooth3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/9/2020

Vulnerability Publication Date: 3/12/2020

Reference Information

CVE: CVE-2020-0556

Detections

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