Puppet Enterprise prior 2016.4.0 Web Interface User information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability was found in Puppet Enterprise (Service Management Software). It has been declared as problematic. This vulnerability affects an unknown part of the component Web Interface. The manipulation with an unknown input leads to a information disclosure vulnerability (User). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The weakness was published 10/21/2016 by John Page (hyp3rlinx) as Puppet Enterprise Web Interface User Enumeration as not defined mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

y sending remote HTTP request to Puppet Enterprise Web Interface it is possible to enumerate valid user account names by sending more than 10 requests. If user does not exist we will continue to get 'Authentication failed.' HTTP response from the victim server. However, if the user does exist we will no longer receive such a message confirming the user exists.

A public exploit has been developed by John Page (hyp3rlinx) and been published immediately after the advisory. It is possible to download the exploit at seclists.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 59 days. During that time the estimated underground price was around $0-$5k. The code used by the exploit is:

FOR /l %i in (1,1,11) DO curl -k  https://victim-puppet-server/auth/login?redirect=Enum-Users  -d username=IDONTEXIST 
-d password=1

Upgrading to version 2016.4.0 eliminates this vulnerability.

Similar entry is available at 93039.

Productinfo

Type

Name

License

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Name: User
Class: Information disclosure / User
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: John Page (hyp3rlinx)
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Puppet Enterprise 2016.4.0

Timelineinfo

08/23/2016 🔍
08/23/2016 +0 days 🔍
10/21/2016 +59 days 🔍
10/21/2016 +0 days 🔍
10/23/2016 +2 days 🔍
05/17/2019 +936 days 🔍

Sourcesinfo

Advisory: Puppet Enterprise Web Interface User Enumeration
Researcher: John Page (hyp3rlinx)
Status: Not defined
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/23/2016 22:01
Updated: 05/17/2019 14:18
Changes: 10/23/2016 22:01 (53), 05/17/2019 14:18 (2)
Complete: 🔍

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