Vulnerability Database

296,843

Total vulnerabilities in the database

CVE-2016-4979

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.

  • Published: Jul 6, 2016
  • Updated: Apr 13, 2023
  • CVE: CVE-2016-4979
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:P/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
apache / http_server 2.4.20 2.4.20.x
apache / http_server 2.4.18 2.4.18.x
apache / http_server 2.4.19 2.4.19.x