RESTEasy up to 3.11.x/4.5.x Header HTTP Response input validation

Summaryinfo

A vulnerability has been found in RESTEasy up to 3.11.x/4.5.x and classified as critical. Affected by this issue is some unknown functionality of the component Header Handler. This manipulation as part of HTTP Response causes input validation. This vulnerability is handled as CVE-2020-1695. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in RESTEasy up to 3.11.x/4.5.x. Affected by this vulnerability is an unknown part of the component Header Handler. The manipulation as part of a HTTP Response 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. The summary by CVE is:

A flaw was found in all resteasy 3.x.x versions prior to 3.12.0.Final and all resteasy 4.x.x versions prior to 4.6.0.Final, where an improper input validation results in returning an illegal header that integrates into the server's response. This flaw may result in an injection, which leads to unexpected behavior when the HTTP response is constructed.

The weakness was released 05/19/2020 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2020-1695 since 11/27/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 232708 (Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : RESTEasy vulnerabilities (USN-7351-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.12.0.Final or 4.6.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (232708). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• RESTEasy

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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