4 Flaws hit HTTP/2 Protocol that could allow Hackers to Disrupt Servers

If you think that the HTTP/2 protocol is more secure than the standard HTTP Hypertext Transfer Protocol, then you might be wrong, as it took researchers just four months to discover four flaws in the HTTP/2 protocol. HTTP/2 was launched properly just in May last year after Google bundled its SPDY...

Important: Red Hat Security Advisory: httpd24-httpd security update

An update for httpd24-httpd is now available for Red Hat Software Collections. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabilit...

Apache HTTP Server 2.4.x < 2.4.23 Multiple Vulnerabilities

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Apache 2.4.18 / 2.4.20 X.509 Certificate Authentication Bypass

According to its banner, the version of Apache running on the remote host is either 2.4.18 or 2.4.20. Additionally, HTTP/2 is enabled over TLS or SSL. It is, therefore, affected by the an authentication bypass vulnerability in the experimental module for the HTTP/2 protocol due to a failure to...

Apache HTTP Server Security Bypass Vulnerability (Jul 2016)

Apache HTTP Server is prone to a security bypass vulnerability. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:apache:httpserver...

CVE-2016-4979

The Apache HTTP Server 2.4.18 through 2.4.20, when modhttp2 and modssl 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...

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when modhttp2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service stream-processing outage via modified flow-control windows...

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when modhttp2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service stream-processing outage via modified flow-control windows...

Authorization

The Apache HTTP Server 2.4.18 through 2.4.20, when modhttp2 and modssl 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...

CVE-2016-4979

A flaw was found in the way httpd performed client authentication using X.509 client certificates. When the HTTP/2 protocol was enabled, a remote attacker could use this flaw to access resources protected by certificate authentication without providing a valid client certificate...

CVE-2016-4979

The Apache HTTP Server 2.4.18 through 2.4.20, when modhttp2 and modssl 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...

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when modhttp2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service stream-processing outage via modified flow-control windows...

CVE-2016-4979

CVE-2016-4979 affects Apache HTTP Server 2.4.18–2.4.20 when mod_http2 and mod_ssl are enabled; it fails to recognize the SSLVerifyClient require directive for HTTP/2 request authorization, enabling bypass of access restrictions by abusing multiple requests on a single connection and renegotiation...

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when modhttp2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service stream-processing outage via modified flow-control windows...

FreeBSD : apache24 -- X509 Client certificate based authentication can be bypassed when HTTP/2 is used (e9d1e040-42c9-11e6-9608-20cf30e32f6d)

Apache Software Foundation reports : The Apache HTTPD web server from 2.4.18-2.4.20 did not validate a X509 client certificate correctly when experimental module for the HTTP/2 protocol is used to access a resource. The net result is that a resource that should require a valid client certificate ...

apache24 -- X509 Client certificate based authentication can be bypassed when HTTP/2 is used

Apache Software Foundation reports: The Apache HTTPD web server from 2.4.18-2.4.20 did not validate a X509 client certificate correctly when experimental module for the HTTP/2 protocol is used to access a resource. The net result is that a resource that should require a valid client certificate i...

Apache Httpd < 2.4.23 : TLS/SSL X.509 client certificate auth bypass with HTTP/2

For configurations enabling support for HTTP/2, SSL client certificate validation was not enforced if configured, allowing clients unauthorized access to protected resources over HTTP/2. This issue affected releases 2.4.18 and 2.4.20 only...

Design/Logic Flaw

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service use-after-free and application crash or possibly execute arbitrary code via a crafted packet...

CVE-2016-4817

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service use-after-free and application crash or possibly execute arbitrary code via a crafted packet...

CVE-2016-4817

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service use-after-free and application crash or possibly execute arbitrary code via a crafted packet...