RedHat Update for httpd RHSA-2016:1422-01

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.871638");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2016-07-19 05:26:27 +0200 (Tue, 19 Jul 2016)");
  script_cve_id("CVE-2016-5387");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-09-07 17:40:00 +0000 (Wed, 07 Sep 2022)");
  script_tag(name:"qod_type", value:"package");
  script_name("RedHat Update for httpd RHSA-2016:1422-01");
  script_tag(name:"summary", value:"The remote host is missing an update for the 'httpd'
  package(s) announced via the referenced advisory.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"The httpd packages provide the Apache HTTP
Server, a powerful, efficient, and extensible web server.

Security Fix(es):

  * It was discovered that httpd used the value of the Proxy header from HTTP
requests to initialize the HTTP_PROXY environment variable for CGI scripts,
which in turn was incorrectly used by certain HTTP client implementations
to configure the proxy for outgoing HTTP requests. A remote attacker could
possibly use this flaw to redirect HTTP requests performed by a CGI script
to an attacker-controlled proxy via a malicious HTTP request.
(CVE-2016-5387)

Note: After this update, httpd will no longer pass the value of the Proxy
request header to scripts via the HTTP_PROXY environment variable.

Red Hat would like to thank Scott Geary (VendHQ) for reporting this issue.

Bug Fix(es):

  * In a caching proxy configuration, the mod_cache module would treat
content as stale if the Expires header changed when refreshing a cached
response. As a consequence, an origin server returning content without a
fixed Expires header would not be treated as cacheable. The mod_cache
module has been fixed to ignore changes in the Expires header when
refreshing content. As a result, such content is now cacheable, improving
performance and reducing load at the origin server. (BZ#1347648)

  * The HTTP status code 451 'Unavailable For Legal Reasons' was not usable
in the httpd configuration. As a consequence, modules such as mod_rewrite
could not be configured to return a 451 error if required for legal
purposes. The 451 status code has been added to the list of available error
codes, and modules can now be configured to return a 451 error if required.
(BZ#1353269)");
  script_tag(name:"affected", value:"httpd on Red Hat Enterprise Linux Server (v. 7)");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"RHSA", value:"2016:1422-01");
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2016-July/msg00017.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_7");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release) exit(0);

res = "";

if(release == "RHENT_7")
{

  if ((res = isrpmvuln(pkg:"httpd-manual", rpm:"httpd-manual~2.4.6~40.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"httpd", rpm:"httpd~2.4.6~40.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"httpd-debuginfo", rpm:"httpd-debuginfo~2.4.6~40.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"httpd-devel", rpm:"httpd-devel~2.4.6~40.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"httpd-tools", rpm:"httpd-tools~2.4.6~40.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"mod_ssl", rpm:"mod_ssl~2.4.6~40.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}