EulerOS Virtualization 3.0.2.2 : python (EulerOS-SA-2021-2159)

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

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

if (description)
{
  script_id(151380);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/11");

  script_cve_id(
    "CVE-2019-20907",
    "CVE-2020-26116",
    "CVE-2020-27619",
    "CVE-2021-23336"
  );

  script_name(english:"EulerOS Virtualization 3.0.2.2 : python (EulerOS-SA-2021-2159)");

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

  - 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)

  - 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)

  - The package python/cpython from 0 and before 3.6.13,
    from 3.7.0 and before 3.7.10, from 3.8.0 and before
    3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to
    Web Cache Poisoning via urllib.parse.parse_qsl and
    urllib.parse.parse_qs by using a vector called
    parameter cloaking. When the attacker can separate
    query parameters using a semicolon (), they can cause a
    difference in the interpretation of the request between
    the proxy (running with default configuration) and the
    server. This can result in malicious requests being
    cached as completely safe ones, as the proxy would
    usually not see the semicolon as a separator, and
    therefore would not include it in a cache key of an
    unkeyed parameter. (CVE-2021-23336)

  - 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-2021-2159
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?520454c1");
  script_set_attribute(attribute:"solution", value:
"Update the affected python 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:"2021/07/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.2");
  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) 2021-2023 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 != "3.0.2.2") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.2");
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 = ["python-2.7.5-69.h26",
        "python-libs-2.7.5-69.h26"];

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, "python");
}