EulerOS Virtualization 2.9.1 : python3 (EulerOS-SA-2021-1623)

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

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

if (description)
{
  script_id(147485);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/11");

  script_cve_id(
    "CVE-2019-20907",
    "CVE-2020-14422",
    "CVE-2020-26116",
    "CVE-2020-27619"
  );

  script_name(english:"EulerOS Virtualization 2.9.1 : python3 (EulerOS-SA-2021-1623)");

  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 python3 packages installed, the
EulerOS Virtualization installation on the remote host is affected by
the following vulnerabilities :

  - In Python 3 through 3.9.0, the
    Lib/test/multibytecodec_support.py CJK codec tests call
    eval() on content retrieved via HTTP.(CVE-2020-27619)

  - http.client in Python 3.x before 3.5.10, 3.6.x before
    3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5
    allows CRLF injection if the attacker controls the HTTP
    request method, as demonstrated by inserting CR and LF
    control characters in the first argument of
    HTTPConnection.request.(CVE-2020-26116)

  - Lib/ipaddress.py in Python through 3.8.3 improperly
    computes hash values in the IPv4Interface and
    IPv6Interface classes, which might allow a remote
    attacker to cause a denial of service if an application
    is affected by the performance of a dictionary
    containing IPv4Interface or IPv6Interface objects, and
    this attacker can cause many dictionary entries to be
    created.(CVE-2020-14422)

  - In Lib/tarfile.py in Python through 3.8.3, an attacker
    is able to craft a TAR archive leading to an infinite
    loop when opened by tarfile.open, because _proc_pax
    lacks header validation.(CVE-2019-20907)

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-2021-1623
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0552b3c6");
  script_set_attribute(attribute:"solution", value:
"Update the affected python3 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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-2020-27619");

  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:"2021/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-unversioned-command");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.9.1");
  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 != "2.9.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.9.1");
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 = ["python3-3.7.4-7.h16.eulerosv2r9",
        "python3-unversioned-command-3.7.4-7.h16.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, "python3");
}