CVE-2013-0335 Openstack nova: vnc proxy can connect to the wrong vm

What is CVE-2013-0335?

CVE-2013-0335 is a high-severity authentication bypass vulnerability in Canonical Ubuntu Linux, published on 22 Mar 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenStack Compute (Nova) Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to gain access to a VM in opportunistic circumstances by using the VNC token for a deleted VM that was bound to the same VNC port.

Weakness: CWE-264, CWE-613

Which versions are affected by CVE-2013-0335?

3 open source packages ship an affected version, including nova and Nova. It affects 4 products.

Products include Canonical Ubuntu Linux, Openstack Essex, Openstack Folsom, Openstack Grizzly.

How do I fix CVE-2013-0335?

Upgrade nova to 12.0.0a0 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2013-0335 being exploited?

There is no known exploitation of CVE-2013-0335 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2013-0335, GHSA-qfp8-hfqx-c79c, PYSEC-2013-43.