openSUSE: Security Advisory for apache2 (openSUSE-SU-2019:1258-1)

# Copyright (C) 2019 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.852446");
  script_version("2022-08-09T10:11:17+0000");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2019-0196", "CVE-2019-0197", "CVE-2019-0211", "CVE-2019-0217",
                "CVE-2019-0220");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2022-08-09 10:11:17 +0000 (Tue, 09 Aug 2022)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-06-06 11:15:00 +0000 (Sun, 06 Jun 2021)");
  script_tag(name:"creation_date", value:"2019-04-24 02:01:20 +0000 (Wed, 24 Apr 2019)");
  script_name("openSUSE: Security Advisory for apache2 (openSUSE-SU-2019:1258-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse", "ssh/login/rpms", re:"ssh/login/release=openSUSELeap42\.3");

  script_xref(name:"openSUSE-SU", value:"2019:1258-1");
  script_xref(name:"URL", value:"https://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'apache2'
  package(s) announced via the openSUSE-SU-2019:1258-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This update for apache2 fixes the following issues:

  * CVE-2019-0220: The Apache HTTP server did not use a consistent strategy
  for URL normalization throughout all of its components. In particular,
  consecutive slashes were not always collapsed. Attackers could
  potentially abuse these inconsistencies to by-pass access control
  mechanisms and thus gain unauthorized access to protected parts of the
  service. [bsc#1131241]

  * CVE-2019-0217: A race condition in Apache's 'mod_auth_digest' when
  running in a threaded server could have allowed users with valid
  credentials to authenticate using another username, bypassing configured
  access control restrictions. [bsc#1131239]

  * CVE-2019-0211: A flaw in the Apache HTTP Server allowed less-privileged
  child processes or threads to execute arbitrary code with the privileges
  of the parent process. Attackers with control over CGI scripts or
  extension modules run by the server could have abused this issue to
  potentially gain super user privileges. [bsc#1131233]

  * CVE-2019-0197: When HTTP/2 support was enabled in the Apache server for
  a 'http' host or H2Upgrade was enabled for h2 on a 'https' host, an
  Upgrade request from http/1.1 to http/2 that was not the first request
  on a connection could lead to a misconfiguration and crash. This issue
  could have been abused to mount a denial-of-service attack. Servers that
  never enabled the h2 protocol or that only enabled it for https: and did
  not configure the 'H2Upgrade on' are unaffected. [bsc#1131245]

  * CVE-2019-0196: Through specially crafted network input the Apache's
  http/2 request handler could be lead to access previously freed memory
  while determining the method of a request. This resulted in the request
  being misclassified and thus being processed incorrectly. [bsc#1131237]


  This update was imported from the SUSE:SLE-12-SP2:Update update project.

  Patch Instructions:

  To install this openSUSE Security Update use the SUSE recommended
  installation methods
  like YaST online_update or 'zypper patch'.

  Alternatively you can run the command listed for your product:

  - openSUSE Leap 42.3:

  zypper in -t patch openSUSE-2019-1258=1");

  script_tag(name:"affected", value:"'apache2' package(s) on openSUSE Leap 42.3.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

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

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

res = "";
report = "";

if(release == "openSUSELeap42.3") {

  if(!isnull(res = isrpmvuln(pkg:"apache2", rpm:"apache2~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-debuginfo", rpm:"apache2-debuginfo~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-debugsource", rpm:"apache2-debugsource~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-devel", rpm:"apache2-devel~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-event", rpm:"apache2-event~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-event-debuginfo", rpm:"apache2-event-debuginfo~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-example-pages", rpm:"apache2-example-pages~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-prefork", rpm:"apache2-prefork~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-prefork-debuginfo", rpm:"apache2-prefork-debuginfo~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-utils", rpm:"apache2-utils~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-utils-debuginfo", rpm:"apache2-utils-debuginfo~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-worker", rpm:"apache2-worker~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-worker-debuginfo", rpm:"apache2-worker-debuginfo~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"apache2-doc", rpm:"apache2-doc~2.4.23~49.1", rls:"openSUSELeap42.3"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);