EulerOS 2.0 SP1 : nss, nss-util (EulerOS-SA-2016-1084)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(99843);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id(
    "CVE-2016-2834",
    "CVE-2016-5285",
    "CVE-2016-8635"
  );

  script_name(english:"EulerOS 2.0 SP1 : nss, nss-util (EulerOS-SA-2016-1084)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the nss, nss-util packages installed,
the EulerOS installation on the remote host is affected by the
following vulnerabilities :

  - Multiple buffer handling flaws were found in the way
    NSS handled cryptographic data from the network. A
    remote attacker could use these flaws to crash an
    application using NSS or, possibly, execute arbitrary
    code with the permission of the user running the
    application. (CVE-2016-2834)

  - A NULL pointer dereference flaw was found in the way
    NSS handled invalid Diffie-Hellman keys. A remote
    client could use this flaw to crash a TLS/SSL server
    using NSS. (CVE-2016-5285)

  - It was found that Diffie Hellman Client key exchange
    handling in NSS was vulnerable to small subgroup
    confinement attack. An attacker could use this flaw to
    recover private keys by confining the client DH key to
    small subgroup of the desired group. (CVE-2016-8635)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2016-1084
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1ea9a4a4");
  script_set_attribute(attribute:"solution", value:
"Update the affected nss, nss-util packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/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:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-sysinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-util");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-util-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(1)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["nss-3.21.3-2",
        "nss-devel-3.21.3-2",
        "nss-sysinit-3.21.3-2",
        "nss-tools-3.21.3-2",
        "nss-util-3.21.3-1.1",
        "nss-util-devel-3.21.3-1.1"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"1", reference:pkg)) 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, "nss, nss-util");
}