SUSE SLED12 / SLES12 Security Update : systemd (SUSE-SU-2020:0331-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:0331-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(133520);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/13");

  script_cve_id("CVE-2020-1712");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : systemd (SUSE-SU-2020:0331-1)");
  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 systemd fixes the following issues :

CVE-2020-1712 (bsc#bsc#1162108) Fix a heap use-after-free
vulnerability, when asynchronous Polkit queries were performed while
handling Dbus messages. A local unprivileged attacker could have
abused this flaw to crash systemd services or potentially execute code
and elevate their privileges, by sending specially crafted Dbus
messages.

Unconfirmed fix for prevent hanging of systemctl during restart.
(bsc#1139459)

Fix warnings thrown during package installation. (bsc#1154043)

Fix for system-udevd prevent crash within OES2018. (bsc#1151506)

Fragments of masked units ought not be considered for
'NeedDaemonReload'. (bsc#1156482)

Wait for workers to finish when exiting. (bsc#1106383)

Improve log message when inotify limit is reached. (bsc#1155574)

Mention in the man pages that alias names are only effective after
command 'systemctl enable'. (bsc#1151377)

Introduce function for reading virtual files in 'sysfs' and 'procfs'.
(bsc#1133495, bsc#1159814)

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=1106383"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1133495"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1139459"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1151377"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1151506"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1154043"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1155574"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1156482"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1159814"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1162108"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-1712/"
  );
  # https://www.suse.com/support/update/announcement/2020/suse-su-20200331-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?75497bbf"
  );
  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 OpenStack Cloud Crowbar 8 :

zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-331=1

SUSE OpenStack Cloud 8 :

zypper in -t patch SUSE-OpenStack-Cloud-8-2020-331=1

SUSE OpenStack Cloud 7 :

zypper in -t patch SUSE-OpenStack-Cloud-7-2020-331=1

SUSE Linux Enterprise Software Development Kit 12-SP4 :

zypper in -t patch SUSE-SLE-SDK-12-SP4-2020-331=1

SUSE Linux Enterprise Server for SAP 12-SP3 :

zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-331=1

SUSE Linux Enterprise Server for SAP 12-SP2 :

zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-331=1

SUSE Linux Enterprise Server 12-SP4 :

zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-331=1

SUSE Linux Enterprise Server 12-SP3-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-331=1

SUSE Linux Enterprise Server 12-SP3-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-331=1

SUSE Linux Enterprise Server 12-SP2-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-331=1

SUSE Linux Enterprise Server 12-SP2-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-331=1

SUSE Linux Enterprise Desktop 12-SP4 :

zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2020-331=1

SUSE Enterprise Storage 5 :

zypper in -t patch SUSE-Storage-5-2020-331=1

SUSE CaaS Platform 3.0 :

To install this update, use the SUSE CaaS Platform Velum dashboard. It
will inform you if it detects new updates and let you then trigger
updating of the complete cluster in a controlled way.

HPE Helion Openstack 8 :

zypper in -t patch HPE-Helion-OpenStack-8-2020-331=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1712");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-sysvinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:udev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:udev-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020-2021 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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / 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|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3/4", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-debugsource-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-sysvinit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"udev-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"udev-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libsystemd0-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libsystemd0-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libsystemd0-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libsystemd0-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libudev1-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libudev1-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libudev1-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libudev1-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"systemd-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"systemd-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"systemd-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"systemd-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"systemd-debugsource-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"systemd-sysvinit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"udev-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"udev-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libsystemd0-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libsystemd0-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libsystemd0-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libsystemd0-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libudev-devel-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libudev1-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libudev1-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libudev1-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libudev1-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"systemd-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"systemd-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"systemd-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"systemd-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"systemd-debugsource-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"systemd-sysvinit-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"udev-228-150.82.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"udev-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libsystemd0-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libsystemd0-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libsystemd0-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libsystemd0-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libudev1-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libudev1-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libudev1-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"libudev1-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"systemd-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"systemd-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"systemd-debuginfo-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"systemd-debuginfo-32bit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"systemd-debugsource-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"systemd-sysvinit-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"udev-228-150.82.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"udev-debuginfo-228-150.82.1")) 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, "systemd");
}