RHEL 7 : libvirt (Unpatched Vulnerability)

high Nessus Plugin ID 199249

Synopsis

The remote Red Hat 7 host is affected by multiple vulnerabilities that will not be patched.

Description

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

- libvirt: TLS certificate verification disabled for clients (CVE-2017-1000256)

- The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container;
(2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a symlink attack on /dev in the container; and cause a denial of service (shutdown or reboot host OS) via the (3) virDomainShutdown or (4) virDomainReboot API and a symlink attack on /dev/initctl in the container, related to paths under /proc/$PID/root and the virInitctlSetRunLevel function. (CVE-2013-6456)

- libvirt 1.1.1 through 1.2.0 allows context-dependent attackers to bypass the domain:getattr and connect:search_domains restrictions in ACLs and obtain sensitive domain object information via a request to the (1) virConnectDomainEventRegister and (2) virConnectDomainEventRegisterAny functions in the event registration API. (CVE-2014-0028)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

Solution

The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation guidance.

Plugin Details

Severity: High

ID: 199249

File Name: redhat_unpatched_libvirt-rhel7.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/3/2024

Updated: 6/3/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2017-1000256

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:mingw-virt-viewer, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:libvirt

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/17/2013

Reference Information

CVE: CVE-2013-6456, CVE-2014-0028, CVE-2017-1000256