Undertow up to 1.3.30/1.4.16 HTTP Request Header request smuggling

Summaryinfo

A vulnerability categorized as critical has been discovered in Undertow up to 1.3.30/1.4.16. This affects an unknown part of the component HTTP Handler. The manipulation as part of Request Header results in request smuggling. This vulnerability is identified as CVE-2017-12165. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Undertow up to 1.3.30/1.4.16. Affected is an unknown functionality of the component HTTP Handler. The manipulation as part of a Request Header leads to a request smuggling vulnerability. CWE is classifying the issue as CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause possible http request smuggling.

The bug was discovered 07/27/2018. The weakness was released 07/27/2018 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2017-12165 since 08/01/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 105252 (RHEL 6 / 7 : eap7-jboss-ec2-eap (RHSA-2017:3458)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236580 (Red Hat Update for JBoss Enterprise Application Platform 7.1.0 (RHSA-2017:3455)).

Upgrading to version 1.3.31, 1.4.17 or 2.0.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105252). Entries connected to this vulnerability are available at VDB-92173, VDB-92175, VDB-92322 and VDB-95800. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• Undertow

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5
• 1.3.6
• 1.3.7
• 1.3.8
• 1.3.9
• 1.3.10
• 1.3.11
• 1.3.12
• 1.3.13
• 1.3.14
• 1.3.15
• 1.3.16
• 1.3.17
• 1.3.18
• 1.3.19
• 1.3.20
• 1.3.21
• 1.3.22
• 1.3.23
• 1.3.24
• 1.3.25
• 1.3.26
• 1.3.27
• 1.3.28
• 1.3.29
• 1.3.30
• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 1.4.4
• 1.4.5
• 1.4.6
• 1.4.7
• 1.4.8
• 1.4.9
• 1.4.10
• 1.4.11
• 1.4.12
• 1.4.13
• 1.4.14
• 1.4.15
• 1.4.16

License

• free

CPE 2.3info

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CPE 2.2info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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