Confire 0.2.0 YAML Parser config.py yamlload Python Command command injection

Summaryinfo

A vulnerability identified as critical has been detected in Confire 0.2.0. Impacted is the function yamlload of the file config.py of the component YAML Parser. This manipulation as part of Python Command causes command injection. The identification of this vulnerability is CVE-2017-16763. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Confire 0.2.0. Affected by this vulnerability is the function yamlload of the file config.py of the component YAML Parser. The manipulation as part of a Python Command leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable vulnerability exists in the YAML parsing functionality in config.py in Confire 0.2.0. Due to the user-specific configuration being loaded from "~/.confire.yaml" using the yaml.load function, a YAML parser can execute arbitrary Python commands resulting in command execution. An attacker can insert Python into loaded YAML to trigger this vulnerability.

The bug was discovered 11/10/2017. The weakness was shared 11/10/2017 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2017-16763 since 11/10/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Confire

Version

• 0.2.0

License

• open-source

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CPE 2.2info

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