Fedora 32 : 2:samba / krb5 (2020-939681213a)

2020-11-02T00:00:00
ID FEDORA_2020-939681213A.NASL
Type nessus
Reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-11-02T00:00:00

Description

KRB5 :

  • Cross-realm s4u fixes for samba (#1836630)

  • Drop unnecessary conflict with openssl-libs >= 3.0.0

  • Unify kvno option documentation

  • Use systemctl reload to HUP the KDC during logrotate

SAMBA :

  • Support S4U operations for Samba AD DC (#1836630)

  • Fix lookup of users and groups when realm used instead of domain to qualify them

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. 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 Fedora Security Advisory FEDORA-2020-939681213a.
#

include("compat.inc");

if (description)
{
  script_id(142192);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/11/02");
  script_xref(name:"FEDORA", value:"2020-939681213a");

  script_name(english:"Fedora 32 : 2:samba / krb5 (2020-939681213a)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Fedora host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"KRB5 :

  - Cross-realm s4u fixes for samba (#1836630)

  - Drop unnecessary conflict with openssl-libs >= 3.0.0

  - Unify kvno option documentation

  - Use `systemctl reload` to HUP the KDC during logrotate

SAMBA :

  - Support S4U operations for Samba AD DC (#1836630)

  - Fix lookup of users and groups when realm used instead
    of domain to qualify them

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2020-939681213a"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected 2:samba and / or krb5 packages."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:2:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:32");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/10/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/02");
  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 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^32([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 32", "Fedora " + os_ver);

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


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


flag = 0;
if (rpm_check(release:"FC32", reference:"samba-4.12.8-1.fc32", epoch:"2")) flag++;
if (rpm_check(release:"FC32", reference:"krb5-1.18.2-27.fc32")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "2:samba / krb5");
}