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nessusThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2018-0261-1.NASL
HistoryJan 30, 2018 - 12:00 a.m.

SUSE SLES12 Security Update : Recommended update for apache2 (SUSE-SU-2018:0261-1)

2018-01-3000:00:00
This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
20

This update for apache2 fixes several issues. These security issues were fixed :

  • CVE-2017-9789: When under stress (closing many connections) the HTTP/2 handling code would sometimes access memory after it has been freed, resulting in potentially erratic behaviour (bsc#1048575).

  • CVE-2017-7659: A maliciously constructed HTTP/2 request could cause mod_http2 to dereference a NULL pointer and crash the server process (bsc#1045160).

The update package also includes non-security fixes. See advisory for details.

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.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0261-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(106471);
  script_version("1.5");
  script_cvs_date("Date: 2019/09/10 13:51:46");

  script_cve_id("CVE-2017-7659", "CVE-2017-9789");

  script_name(english:"SUSE SLES12 Security Update : Recommended update for apache2 (SUSE-SU-2018:0261-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  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 several issues. These security issues
were fixed :

  - CVE-2017-9789: When under stress (closing many
    connections) the HTTP/2 handling code would sometimes
    access memory after it has been freed, resulting in
    potentially erratic behaviour (bsc#1048575).

  - CVE-2017-7659: A maliciously constructed HTTP/2 request
    could cause mod_http2 to dereference a NULL pointer and
    crash the server process (bsc#1045160).

The update package also includes non-security fixes. See advisory for
details.

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=1042037"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1045160"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1048575"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1057406"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-7659/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-9789/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20180261-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?aa090d90"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-179=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2018-179=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2018-179=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-179=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-179=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  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-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:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/30");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  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:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "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 == "SLES12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-debugsource-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-example-pages-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-prefork-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-prefork-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-utils-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-utils-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-worker-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-worker-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-debugsource-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-example-pages-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-prefork-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-prefork-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-utils-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-utils-debuginfo-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-worker-2.4.23-29.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-worker-debuginfo-2.4.23-29.13.1")) flag++;


if (flag)
{
  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, "Recommended update for apache2");
}
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