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HTTP Request Smuggling Affecting tomcat-el-2.2-api package, versions <0:7.0.69-11.el7_3

Severity

 Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.79% (82nd percentile)

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  • Snyk IDSNYK-RHEL7-TOMCATEL22API-4740950
  • published26 Jul 2021
  • disclosed22 Nov 2016
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Introduced: 22 Nov 2016

CVE-2016-6816  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade RHEL:7 tomcat-el-2.2-api to version 0:7.0.69-11.el7_3 or higher.
This issue was patched in RHSA-2017:0935.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-el-2.2-api package and not the tomcat-el-2.2-api package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 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 and/or obtain sensitive information from requests other then their own.

References