MCollective up to 2.10.3 YAML Deserialization deserialization

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in MCollective up to 2.10.3. It has been declared as critical. Impacted is an unknown function of the component YAML Deserialization. Executing a manipulation can lead to deserialization. This vulnerability is handled as CVE-2017-2292. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in MCollective up to 2.10.3. It has been declared as critical. This vulnerability affects some unknown processing of the component YAML Deserialization. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Versions of MCollective prior to 2.10.4 deserialized YAML from agents without calling safe_load, allowing the potential for arbitrary code execution on the server. The fix for this is to call YAML.safe_load on input. This has been tested in all Puppet-supplied MCollective plugins, but there is a chance that third-party plugins could rely on this insecure behavior.

The bug was discovered 05/11/2017. The weakness was released 06/30/2017 (Website). The advisory is shared for download at puppet.com. This vulnerability was named CVE-2017-2292 since 12/01/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 50 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102942 (GLSA-201709-01 : MCollective: Remote Code Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading to version 2.10.4 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (102942). Entry connected to this vulnerability is available at VDB-102977. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102942
Nessus Name: GLSA-201709-01 : MCollective: Remote Code Execution
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100935
OpenVAS Name: Puppet Enterprise Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: MCollective 2.10.4

Timelineinfo

12/01/2016 🔍
05/11/2017 +161 days 🔍
06/30/2017 +50 days 🔍
06/30/2017 +0 days 🔍
07/01/2017 +1 days 🔍
09/04/2017 +65 days 🔍
09/05/2017 +1 days 🔍
10/21/2019 +776 days 🔍

Sourcesinfo

Advisory: puppet.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2292 (🔍)
GCVE (CVE): GCVE-0-2017-2292
GCVE (VulDB): GCVE-100-102976
See also: 🔍

Entryinfo

Created: 07/01/2017 07:38
Updated: 10/21/2019 16:42
Changes: 07/01/2017 07:38 (71), 10/21/2019 16:42 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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