Apache NiFi/NiFi Registry on Linux/macOS ShellUserGroupProvider os command injection

Summaryinfo

A vulnerability categorized as critical has been discovered in Apache NiFi and NiFi Registry on Linux/macOS. This affects an unknown function of the component ShellUserGroupProvider. The manipulation results in os command injection. This vulnerability is identified as CVE-2022-33140. There is not any exploit available. Changing the configuration settings is recommended.

Detailsinfo

A vulnerability was found in Apache NiFi and NiFi Registry on Linux/macOS (affected version unknown). It has been classified as critical. Affected is an unknown functionality of the component ShellUserGroupProvider. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The optional ShellUserGroupProvider in Apache NiFi 1.10.0 to 1.16.2 and Apache NiFi Registry 0.6.0 to 1.16.2 does not neutralize arguments for group resolution commands, allowing injection of operating system commands on Linux and macOS platforms. The ShellUserGroupProvider is not included in the default configuration. Command injection requires ShellUserGroupProvider to be one of the enabled User Group Providers in the Authorizers configuration. Command injection also requires an authenticated user with elevated privileges. Apache NiFi requires an authenticated user with authorization to modify access policies in order to execute the command. Apache NiFi Registry requires an authenticated user with authorization to read user groups in order to execute the command. The resolution removes command formatting based on user-provided arguments.

The weakness was released 06/15/2022. The advisory is shared for download at lists.apache.org. This vulnerability is traded as CVE-2022-33140 since 06/13/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/15/2022). The MITRE ATT&CK project declares the attack technique as T1202.

It is possible to mitigate the problem by applying the configuration setting .

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Productinfo

Vendor

• Apache

Name

• NiFi
• NiFi Registry

License

• open-source

Website

• Vendor: https://www.apache.org/

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