HTTP Request Smuggling Affecting eap7-jboss-classfilewriter package, versions <0:1.2.1-2.Final_redhat_1.1.ep7.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.34% (72nd percentile)

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  • Snyk IDSNYK-RHEL7-EAP7JBOSSCLASSFILEWRITER-5330827
  • published30 Mar 2023
  • disclosed7 Jun 2017

Introduced: 7 Jun 2017

CVE-2017-2666  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade RHEL:7 eap7-jboss-classfilewriter to version 0:1.2.1-2.Final_redhat_1.1.ep7.el7 or higher.
This issue was patched in RHSA-2017:3455.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eap7-jboss-classfilewriter package and not the eap7-jboss-classfilewriter package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.