CVE-2016-5008 Auth bypass in n/a
Remote attackers can bypass VNC authentication by connecting to a libvirt server configured with an empty password, gaining unauthorized access to virtual machine consoles.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-5008?
CVE-2016-5008 is a critical authentication bypass vulnerability in Debian Debian Linux, published on 13 Jul 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string, which allows remote attackers to bypass authentication and establish a VNC session by connecting to the server.
Weakness: CWE-284
Which versions are affected by CVE-2016-5008?
It affects 2 products.
Linux distribution packages (10)
libvirt SUSE:Linux Enterprise Desktop 12 SP1 | All versions | 1.2.18.4-11.7 |
libvirt SUSE:Linux Enterprise Server 11 SP4 | All versions | 1.2.5-15.3 |
perl-Sys-Virt SUSE:Linux Enterprise Server 11 SP4 | All versions | 1.2.5-4.2 |
libvirt SUSE:Linux Enterprise Server 12 SP1 | All versions | 1.2.18.4-11.7 |
libvirt SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 1.2.5-15.3 |
perl-Sys-Virt SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 1.2.5-4.2 |
libvirt SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | All versions | 1.2.18.4-11.7 |
libvirt SUSE:Linux Enterprise Software Development Kit 11 SP4 | All versions | 1.2.5-15.3 |
libvirt SUSE:Linux Enterprise Software Development Kit 12 SP1 | All versions | 1.2.18.4-11.7 |
libvirt SUSE:Linux Enterprise Workstation Extension 12 SP1 | All versions | 1.2.18.4-11.7 |
Products include Debian Debian Linux, Redhat Libvirt.
How do I fix CVE-2016-5008?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2016-5008 being exploited?
There is no known exploitation of CVE-2016-5008 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2016-5008, DLA-541-1, DSA-3613-1, GHSA-qmg9-jp26-j65g, MGASA-2016-0248, SUSE-SU-2016:1944-1 and 2 more.