EulerOS 2.0 SP8 : dbus (EulerOS-SA-2019-1767)

Low Nessus Plugin ID 127004

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the dbus packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

- dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass.(CVE-2019-12749)

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

Solution

Update the affected dbus package.

See Also

http://www.nessus.org/u?bf15a93a

Plugin Details

Severity: Low

ID: 127004

File Name: EulerOS_SA-2019-1767.nasl

Version: 1.1

Type: local

Published: 2019/07/25

Updated: 2019/07/25

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 3.6

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

CVSS v3.0

Base Score: 7.1

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:dbus, p-cpe:/a:huawei:euleros:dbus-common, p-cpe:/a:huawei:euleros:dbus-daemon, p-cpe:/a:huawei:euleros:dbus-devel, p-cpe:/a:huawei:euleros:dbus-libs, p-cpe:/a:huawei:euleros:dbus-tools, p-cpe:/a:huawei:euleros:dbus-x11, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Patch Publication Date: 2019/07/25

Reference Information

CVE: CVE-2019-12749