SUSE SLED15 / SLES15 Security Update : salt (SUSE-SU-2020:1974-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:1974-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(138795);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/25");

  script_cve_id(
    "CVE-2018-15750",
    "CVE-2018-15751",
    "CVE-2020-11651",
    "CVE-2020-11652"
  );
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/03");
  script_xref(name:"CEA-ID", value:"CEA-2020-0041");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : salt (SUSE-SU-2020:1974-1)");

  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 salt contains the following fixes :

Fix for TypeError in Tornado importer (bsc#1174165)

Require python3-distro only for TW (bsc#1173072)

Update to Salt version 3000: See release notes:
https://docs.saltstack.com/en/latest/topics/releases/3000.html

Add docker.logout to docker execution module. (bsc#1165572)

Add option to enable/disable force refresh for zypper.

Add publish_batch to ClearFuncs exposed methods.

Adds test for zypper abbreviation fix.

Avoid segfault from 'salt-api' under certain conditions of heavy load
managing SSH minions. (bsc#1169604)

Avoid traceback on debug logging for swarm module. (bsc#1172075)

Batch mode now also correctly provides return value. (bsc#1168340)

Better import cache handline.

Do not make file.recurse state to fail when msgpack 0.5.4.
(bsc#1167437)

Do not require vendored backports-abc. (bsc#1170288)

Fix errors from unit tests due NO_MOCK and NO_MOCK_REASON deprecation.

Fix for low rpm_lowpkg unit test.

Fix for temp folder definition in loader unit test.

Fix for unless requisite when pip is not installed.

Fix integration test failure for test_mod_del_repo_multiline_values.

Fix regression in service states with reload argument.

Fix tornado imports and missing _utils after rebasing patches.

Fix status attribute issue in aptpkg test.

Improved storage pool or network handling.

loop: fix variable names for until_no_eval.

Make 'salt.ext.tornado.gen' to use 'salt.ext.backports_abc' on Python
2.

Make setup.py script not to require setuptools greater than 9.1.

More robust remote port detection.

Prevent sporious 'salt-api' stuck processes when managing SSH minions.
because of logging deadlock. (bsc#1159284)

Python3.8 compatibility changes.

Removes unresolved merge conflict in yumpkg module.

Returns a the list of IPs filtered by the optional network list.

Revert broken changes to slspath made on Salt 3000
(saltstack/salt#56341). (bsc#1170104)

Sanitize grains loaded from roster_grains.json cache during
'state.pkg'.

Various virt backports from 3000.2.

zypperpkg: filter patterns that start with dot. (bsc#1171906)

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=1159284");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1165572");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1167437");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1168340");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1169604");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1170104");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1170288");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1171906");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1172075");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1173072");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1174165");
  script_set_attribute(attribute:"see_also", value:"https://docs.saltstack.com/en/latest/topics/releases/3000.html");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-15750/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-15751/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-11651/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-11652/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20201974-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a0ffca24");
  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-SP1-2020-1974=1

SUSE Linux Enterprise Module for Python2 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Python2-15-SP1-2020-1974=1

SUSE Linux Enterprise Module for Basesystem 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1974=1");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-11651");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'SaltStack Salt Master/Minion Unauthenticated RCE');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"CANVAS");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python2-salt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python3-salt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-cloud");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-master");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-minion");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-proxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-ssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-standalone-formulas-configuration");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:salt-syndic");
  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) 2020-2023 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:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"python2-salt-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"python3-salt-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-api-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-cloud-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-doc-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-master-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-minion-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-proxy-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-ssh-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-standalone-formulas-configuration-3000-6.37.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"salt-syndic-3000-6.37.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"python2-salt-3000-6.37.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"python3-salt-3000-6.37.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"salt-3000-6.37.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"salt-doc-3000-6.37.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"salt-minion-3000-6.37.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "salt");
}