CVE-2016-8520 Missing authorization in Helion Eucalyptus

What is CVE-2016-8520?

CVE-2016-8520 is a high-severity missing authorization vulnerability in Hewlett Packard Enterprise Helion Eucalyptus, published on 15 Feb 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

HPE Helion Eucalyptus v4.3.0 and earlier does not correctly check IAM user's permissions for accessing versioned objects and ACLs. In some cases, authenticated users with S3 permissions could also access versioned data.

Weakness: CWE-275

Which versions are affected by CVE-2016-8520?

It affects 1 product.

Products include Eucalyptus Eucalyptus.

How do I fix CVE-2016-8520?

No fix has been published for CVE-2016-8520 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2016-8520 being exploited?

There is no known exploitation of CVE-2016-8520 in the wild and no public exploit code.

Other vulnerabilities in Hewlett Packard Enterprise Helion Eucalyptus

• CVE-2013-4767 Unspecified vulnerability in Eucalyptus before 3.3.2 has unknown impact and attack vectors. Critical 10.0
• CVE-2016-8528 Privilege escalation in Helion Eucalyptus High 8.8
• CVE-2015-6861 Auth bypass in n/a High 7.5
• CVE-2012-3240 Privilege escalation in n/a High 7.5
• CVE-2012-3241 Auth bypass in n/a High 7.5

Sources

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

Also known as GHSA-29jc-9wc9-6c78.