CVE-2011-4076 OpenStack Nova Exposure of Sensitive Information to an Unauthorized Actor

What is CVE-2011-4076?

CVE-2011-4076 is a medium-severity vulnerability in nova, published on 26 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenStack Nova before 2012.1 allows someone with access to an EC2_ACCESS_KEY (equivalent to a username) to obtain the EC2_SECRET_KEY (equivalent to a password). Exposing the EC2_ACCESS_KEY via http or tools that allow man-in-the-middle over https could allow an attacker to easily obtain the EC2_SECRET_KEY. An attacker could also presumably brute force values for EC2_ACCESS_KEY.

Weakness: CWE-200

Which versions are affected by CVE-2011-4076?

3 open source packages ship an affected version, including nova. It affects 1 product.

Products include Openstack Nova.

How do I fix CVE-2011-4076?

Upgrade nova to 12.0.0a0 or later.

Is CVE-2011-4076 being exploited?

There is no known exploitation of CVE-2011-4076 in the wild and no public exploit code.

Other vulnerabilities in nova

• CVE-2017-7214 OpenStack Nova logs sensitive context from notification exceptions Critical 9.8
• CVE-2017-17051 OpenStack Nova DoS by rebuilding the same instance with a new image multiple times High 8.6
• CVE-2020-17376 OpenStack Nova Live migration fails to update persistent domain XML High 8.3
• CVE-2017-18191 OpenStack Nova Denial of service attack on the compute host High 7.5
• CVE-2015-3280 OpenStack Compute (nova) allows remote authenticated users to cause a denial of service Medium 6.8

Sources

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

Also known as DEBIAN-CVE-2011-4076, GHSA-vcmv-6rxx-fh7r, PYSEC-2026-691.