SUSE SLED15 / SLES15 Security Update : salt (SUSE-SU-2021:0630-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2021:0630-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(146904);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/11/09");

  script_cve_id(
    "CVE-2020-28243",
    "CVE-2020-28972",
    "CVE-2020-35662",
    "CVE-2021-25281",
    "CVE-2021-25282",
    "CVE-2021-25283",
    "CVE-2021-25284",
    "CVE-2021-3144",
    "CVE-2021-3148",
    "CVE-2021-3197"
  );
  script_xref(name:"IAVA", value:"2021-A-0112-S");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : salt (SUSE-SU-2021:0630-1)");

  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 fixes the following issues :

Fix regression on cmd.run when passing tuples as cmd (bsc#1182740)

Allow `extra_filerefs` as sanitized `kwargs` for SSH client

Fix errors with virt.update

Fix for multiple for security issues (CVE-2020-28243) (CVE-2020-28972)
(CVE-2020-35662) (CVE-2021-3148) (CVE-2021-3144) (CVE-2021-25281)
(CVE-2021-25282) (CVE-2021-25283) (CVE-2021-25284) (CVE-2021-3197)
(bsc#1181550) (bsc#1181556) (bsc#1181557) (bsc#1181558) (bsc#1181559)
(bsc#1181560) (bsc#1181561) (bsc#1181562) (bsc#1181563) (bsc#1181564)
(bsc#1181565)

virt: search for `grub.xen` path

Xen spicevmc, DNS SRV records backports :

  - Fix virtual network generated DNS XML for SRV records

  - Don't add spicevmc channel to xen VMs

virt UEFI fix: virt.update when `efi=True`

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=1181550");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181556");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181557");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181558");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181559");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181560");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181561");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181562");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181563");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181564");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1181565");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1182740");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-28243/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-28972/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-35662/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-25281/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-25282/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-25283/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-25284/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3144/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3148/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3197/");
  # https://www.suse.com/support/update/announcement/2021/suse-su-20210630-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?160025cd");
  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-SP2 :

zypper in -t patch
SUSE-SLE-Module-Server-Applications-15-SP2-2021-630=1

SUSE Linux Enterprise Module for Python2 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Python2-15-SP2-2021-630=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-630=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-2021-3197");

  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 API Unauthenticated RCE through wheel_async client');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/02/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/01");

  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_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021 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:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP2", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"2", reference:"python2-salt-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"python3-salt-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-api-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-cloud-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-doc-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-master-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-minion-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-proxy-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-ssh-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-standalone-formulas-configuration-3000-24.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"salt-syndic-3000-24.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"python2-salt-3000-24.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"python3-salt-3000-24.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"salt-3000-24.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"salt-doc-3000-24.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"salt-minion-3000-24.1")) 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");
}