Vulnerability identifier: #VU37572

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-2296

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Puppet Agent
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor: Puppet Labs

Description

The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.

In Puppet Enterprise 2017.1.x and 2017.2.1, using specially formatted strings with certain formatting characters as Classifier node group names or RBAC role display names causes errors, effectively causing a DOS to the service. This was resolved in Puppet Enterprise 2017.2.2.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Puppet Agent:

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External links
http://puppet.com/security/cve/cve-2017-2296

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.