Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.
CVSS Details
- CVSS 3.0 Base Score: 8.2
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux | — | Upgrade puppet3 | Jun 23, 2017 | May 25, 2017 |
| Debian | — | Upgrade puppet | May 27, 2017 | May 25, 2017 |
| Suse | — | Upgrade puppetUpgrade puppet-server | Jul 25, 2017 | May 25, 2017 |
| Ubuntu | — | Upgrade puppet (Ubuntu Pro)Upgrade puppet-common (Ubuntu Pro)Upgrade puppet-common | Jun 5, 2017 | May 25, 2017 |
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