SUSE SLED11 / SLES11 Security Update : krb5 (SUSE-SU-2016:0430-1)

2016-02-12T00:00:00
ID SUSE_SU-2016-0430-1.NASL
Type nessus
Reporter Tenable
Modified 2018-11-29T00:00:00

Description

This update for krb5 fixes the following issues :

  • CVE-2015-8629: Information leak authenticated attackers with permissions to modify the database (bsc#963968)

  • CVE-2015-8631: An authenticated attacker could have caused a memory leak in auditd by supplying a null principal name in request (bsc#963975)

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-2016:0430-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(88708);
  script_version("1.8");
  script_cvs_date("Date: 2018/11/29 12:03:39");

  script_cve_id("CVE-2015-8629", "CVE-2015-8631");

  script_name(english:"SUSE SLED11 / SLES11 Security Update : krb5 (SUSE-SU-2016:0430-1)");
  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 krb5 fixes the following issues :

  - CVE-2015-8629: Information leak authenticated attackers
    with permissions to modify the database (bsc#963968)

  - CVE-2015-8631: An authenticated attacker could have
    caused a memory leak in auditd by supplying a null
    principal name in request (bsc#963975)

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=963968"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=963975"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8629/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8631/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20160430-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1c7f81de"
  );
  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 11-SP4 :

zypper in -t patch sdksp4-krb5-12397=1

SUSE Linux Enterprise Server 11-SP4 :

zypper in -t patch slessp4-krb5-12397=1

SUSE Linux Enterprise Desktop 11-SP4 :

zypper in -t patch sledsp4-krb5-12397=1

SUSE Linux Enterprise Debuginfo 11-SP4 :

zypper in -t patch dbgsp4-krb5-12397=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  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:L/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:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-apps-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-apps-servers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 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 = eregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! ereg(pattern:"^(SLED11|SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED11 / SLES11", "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 == "SLES11" && (! ereg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);
if (os_ver == "SLED11" && (! ereg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED11 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"krb5-32bit-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"s390x", reference:"krb5-32bit-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-apps-clients-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-apps-servers-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-client-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-server-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"krb5-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"krb5-client-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"krb5-32bit-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"i586", reference:"krb5-1.6.3-133.49.106.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"i586", reference:"krb5-client-1.6.3-133.49.106.1")) 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, "krb5");
}