A vulnerability was found in Eclipse Vert.x up to 3.5.1 and classified as critical. This issue affects some unknown processing of the component HttpServer/HttpClient. The manipulation as part of a Header leads to a input validation vulnerability (Header Injection). Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Eclipse Vert.x version 3.0 to 3.5.1, the HttpServer response headers and HttpClient request headers do not filter carriage return and line feed characters from the header value. This allow unfiltered values to inject a new header in the client request or server response.

The bug was discovered 08/09/2018. The weakness was released 08/14/2018 (Website). It is possible to read the advisory at bugs.eclipse.org. The identification of this vulnerability is CVE-2018-12537 since 06/18/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

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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Vendor

• Eclipse

Name

• Vert.x

Version

• 3.5.0
• 3.5.1

License

• open-source

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CPE 2.2info

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