Improper Access Control Affecting apache/httpd package, versions [,2.4.23)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.28% (69th percentile)

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  • Snyk IDSNYK-UNMANAGED-APACHEHTTPD-3007411
  • published12 Jan 2022
  • disclosed6 Jul 2016
  • creditUnknown

Introduced: 6 Jul 2016

CVE-2016-4979  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade apache/httpd to version 2.4.23 or higher.

Overview

Affected versions of this package are vulnerable to Improper Access Control. The Apache HTTP Server 2.4.18 through 2.4.20, when mod_http2 and mod_ssl are enabled, does not properly recognize the "SSLVerifyClient require" directive for HTTP/2 request authorization, which allows remote attackers to bypass intended access restrictions by leveraging the ability to send multiple requests over a single connection and aborting a renegotiation.

CVSS Scores

version 3.1