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HTTP Response Splitting Affecting mod_proxy_html package, versions <1:2.4.6-45.el7_3.4

Severity

 Recommended
medium

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.4% (75th percentile)

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  • Snyk IDSNYK-CENTOS7-MODPROXYHTML-2079628
  • published26 Jul 2021
  • disclosed14 Aug 2018
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Introduced: 14 Aug 2018

CVE-2016-4975  (opens in a new tab)
CWE-113  (opens in a new tab)

How to fix?

Upgrade Centos:7 mod_proxy_html to version 1:2.4.6-45.el7_3.4 or higher.

NVD Description

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

Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).

References