EulerOS Virtualization 2.9.0 : nss (EulerOS-SA-2021-1640)

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

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

if (description)
{
  script_id(147683);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/10");

  script_cve_id(
    "CVE-2019-17006",
    "CVE-2019-17007",
    "CVE-2020-12399",
    "CVE-2020-12400",
    "CVE-2020-12403",
    "CVE-2020-25648"
  );

  script_name(english:"EulerOS Virtualization 2.9.0 : nss (EulerOS-SA-2021-1640)");

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

  - In Network Security Services (NSS) before 3.46, several
    cryptographic primitives had missing length checks. In
    cases where the application calling the library did not
    perform a sanity check on the inputs it could result in
    a crash due to a buffer overflow.(CVE-2019-17006)

  - NSS has shown timing differences when performing DSA
    signatures, which was exploitable and could eventually
    leak private keys. This vulnerability affects
    Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR <
    68.9.(CVE-2020-12399)

  - When converting coordinates from projective to affine,
    the modular inversion was not performed in constant
    time, resulting in a possible timing-based side channel
    attack. This vulnerability affects Firefox < 80 and
    Firefox for Android < 80.(CVE-2020-12400)

  - A flaw was found in the way CHACHA20-POLY1305 was
    implemented in NSS. When using multi-part Chacha20, it
    could cause out-of-bounds reads. This issue was fixed
    by explicitly disabling multi-part ChaCha20 (which was
    not functioning correctly) and strictly enforcing tag
    length. The highest threat from(CVE-2020-12403)

  - A flaw was found in the way NSS handled CCS
    (ChangeCipherSpec) messages in TLS 1.3. This flaw
    allows a remote attacker to send multiple CCS messages,
    causing a denial of service for servers compiled with
    the NSS library. The highest threat from this
    vulnerability is to system availability. This flaw
    affects NSS versions before 3.58.(CVE-2020-25648)

  - In Network Security Services before 3.44, a malformed
    Netscape Certificate Sequence can cause NSS to crash,
    resulting in a denial of service.(CVE-2019-17007)

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-2021-1640
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?452c4a43");
  script_set_attribute(attribute:"solution", value:
"Update the affected nss packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17006");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/11");

  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-softokn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-util");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.9.0");
  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) 2021-2024 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/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.9.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.9.0");
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-3.40.1-11.h8.eulerosv2r9",
        "nss-softokn-3.40.1-11.h8.eulerosv2r9",
        "nss-util-3.40.1-11.h8.eulerosv2r9"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", 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");
}