CVE-2017-2295 Information

Description

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 Vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Reference

http://www.debian.org/security/2017/dsa-3862 http://www.securityfocus.com/bid/98582 https://puppet.com/security/cve/cve-2017-2295

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

8.2