SUSE SLED15 / SLES15 Security Update : apache2 (SUSE-SU-2019:2237-1) (Internal Data Buffering)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:2237-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(128316);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id(
    "CVE-2019-10081",
    "CVE-2019-10082",
    "CVE-2019-10092",
    "CVE-2019-10097",
    "CVE-2019-10098",
    "CVE-2019-9517"
  );
  script_xref(name:"CEA-ID", value:"CEA-2019-0643");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : apache2 (SUSE-SU-2019:2237-1) (Internal Data Buffering)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"This update for apache2 fixes the following issues :

Security issues fixed :

CVE-2019-9517: Fixed HTTP/2 implementations that are vulnerable to
unconstrained interal data buffering (bsc#1145575).

CVE-2019-10081: Fixed mod_http2 that is vulnerable to memory
corruption on early pushes (bsc#1145742).

CVE-2019-10082: Fixed mod_http2 that is vulnerable to read-after-free
in h2 connection shutdown (bsc#1145741).

CVE-2019-10092: Fixed limited cross-site scripting in mod_proxy
(bsc#1145740).

CVE-2019-10097: Fixed mod_remoteip stack-based buffer overflow and
NULL pointer dereference (bsc#1145739).

CVE-2019-10098: Fixed mod_rewrite configuration vulnerablility to open
redirect (bsc#1145738).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1145575");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1145738");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1145739");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1145740");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1145741");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1145742");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-10081/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-10082/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-10092/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-10097/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-10098/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-9517/");
  # https://www.suse.com/support/update/announcement/2019/suse-su-20192237-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9d21dafa");
  script_set_attribute(attribute:"solution", value:
"To install this SUSE 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 :

SUSE Linux Enterprise Module for Server Applications 15-SP1:zypper in
-t patch SUSE-SLE-Module-Server-Applications-15-SP1-2019-2237=1

SUSE Linux Enterprise Module for Server Applications 15:zypper in -t
patch SUSE-SLE-Module-Server-Applications-15-2019-2237=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools
15-SP1:zypper in -t patch
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-2237=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools
15:zypper in -t patch
SUSE-SLE-Module-Development-Tools-OBS-15-2019-2237=1");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-10082");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-event");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-event-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-example-pages");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-prefork");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-prefork-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-utils-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-worker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-worker-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(0|1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0/1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(0|1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP0/1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-debugsource-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-devel-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-event-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-event-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-example-pages-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-prefork-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-prefork-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-utils-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-utils-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-worker-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-worker-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-debugsource-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-devel-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-event-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-event-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-example-pages-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-prefork-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-prefork-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-utils-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-utils-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-worker-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"apache2-worker-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-debugsource-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-event-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-event-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-example-pages-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"apache2-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"apache2-debugsource-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"apache2-event-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"apache2-event-debuginfo-2.4.33-3.21.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"apache2-example-pages-2.4.33-3.21.1")) flag++;


if (flag)
{
  set_kb_item(name:'www/0/XSS', value:TRUE);
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "apache2");
}