Apache NiFi 1.5.0 Header host input validation

Summaryinfo

A vulnerability categorized as critical has been discovered in Apache NiFi 1.5.0. This impacts an unknown function of the component Header Handler. Executing a manipulation of the argument host as part of HTTP Request can lead to input validation. This vulnerability is registered as CVE-2017-12632. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Apache NiFi 1.5.0. This vulnerability affects an unknown functionality of the component Header Handler. The manipulation of the argument host as part of a HTTP Request leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A malicious host header in an incoming HTTP request could cause NiFi to load resources from an external server. The fix to sanitize host headers and compare to a controlled whitelist was applied on the Apache NiFi 1.5.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

The bug was discovered 01/12/2018. The weakness was published 01/23/2018 (Website). The advisory is available at nifi.apache.org. This vulnerability was named CVE-2017-12632 since 08/07/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/27/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $5k-$25k.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Apache

Name

• NiFi

Version

• 1.5.0

License

• open-source

Website

• Vendor: https://www.apache.org/

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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