CVE-2016-2785 Puppet Improper Access Control

What is CVE-2016-2785?

CVE-2016-2785 is a critical authentication bypass vulnerability in n/a, published on 10 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Weakness: CWE-284

Which versions are affected by CVE-2016-2785?

2 open source packages ship an affected version, including puppet. It affects 3 products.

Products include Puppet Puppet, Puppet Puppet Agent, Puppet Puppet Server.

How do I fix CVE-2016-2785?

Upgrade puppet to 4.4.2 or later.

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

Is CVE-2016-2785 being exploited?

There is no known exploitation of CVE-2016-2785 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2021-27021 SQL injection in Puppet DB High 8.8
• CVE-2018-6513 Privilege escalation in Puppet Enterprise and Puppet Agent High 8.8
• CVE-2018-6514 Privilege escalation in Puppet Agent High 7.8
• CVE-2018-6515 Code injection in Puppet Agent High 7.8
• CVE-2013-1655 Puppet Improper Input Validation vulnerability High 7.5

Sources

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

Also known as GHSA-pqj5-7r86-64fv.