SUSE SLES11 Security Update : wpa_supplicant (SUSE-SU-2017:2752-1) (KRACK)

2017-10-18T00:00:00
ID SUSE_SU-2017-2752-1.NASL
Type nessus
Reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-05-02T00:00:00

Description

This update for wpa_supplicant fixes the following issues :

  • Several vulnerabilities in standard conforming implementations of the WPA2 protocol have been discovered and published under the code name KRACK. This update remedies those issues in a backwards compatible manner, i.e. the updated wpa_supplicant can interface properly with both vulnerable and patched implementations of WPA2, but an attacker won

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:2752-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(103920);
  script_version("3.17");
  script_cvs_date("Date: 2019/09/11 11:22:16");

  script_cve_id("CVE-2017-13078", "CVE-2017-13079", "CVE-2017-13080", "CVE-2017-13081", "CVE-2017-13087", "CVE-2017-13088");
  script_xref(name:"IAVA", value:"2017-A-0310");

  script_name(english:"SUSE SLES11 Security Update : wpa_supplicant (SUSE-SU-2017:2752-1) (KRACK)");
  script_summary(english:"Checks rpm output for the updated package.");

  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 wpa_supplicant fixes the following issues :

  - Several vulnerabilities in standard conforming
    implementations of the WPA2 protocol have been
    discovered and published under the code name KRACK. This
    update remedies those issues in a backwards compatible
    manner, i.e. the updated wpa_supplicant can interface
    properly with both vulnerable and patched
    implementations of WPA2, but an attacker won't be able
    to exploit the KRACK weaknesses in those connections
    anymore even if the other party is still vulnerable.
    [bsc#1056061, CVE-2017-13078, CVE-2017-13079,
    CVE-2017-13080, CVE-2017-13081, CVE-2017-13087,
    CVE-2017-13088]

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=1056061"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13078/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13079/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13080/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13081/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13087/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13088/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20172752-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?58d297a0"
  );
  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 Server 11-SP4:zypper in -t patch
slessp4-wpa_supplicant-13318=1

SUSE Linux Enterprise Server 11-SP3-LTSS:zypper in -t patch
slessp3-wpa_supplicant-13318=1

SUSE Linux Enterprise Point of Sale 11-SP3:zypper in -t patch
sleposp3-wpa_supplicant-13318=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N");
  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:wpa_supplicant");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/10/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/18");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 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:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE 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" && (! preg(pattern:"^(3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP3/4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", reference:"wpa_supplicant-0.7.1-6.18.3.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"wpa_supplicant-0.7.1-6.18.3.1")) flag++;


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