CVEvulnerability

CVE-2016-4979

7.5 HIGH Published 2016-07-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2016-07-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-284

Description

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.

Affected configurations

• apache http server 2.4.18 • apache http server 2.4.19 • apache http server 2.4.20

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References