EulerOS 2.0 SP5 : tomcat (EulerOS-SA-2020-1932)

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

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

if (description)
{
  script_id(140153);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/22");

  script_cve_id("CVE-2020-9484");
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");

  script_name(english:"EulerOS 2.0 SP5 : tomcat (EulerOS-SA-2020-1932)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the tomcat packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerability :

  - When using Apache Tomcat versions 10.0.0-M1 to
    10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and
    7.0.0 to 7.0.103 if a) an attacker is able to control
    the contents and name of a file on the server and b)
    the server is configured to use the PersistenceManager
    with a FileStore and c) the PersistenceManager is
    configured with
    sessionAttributeValueClassNameFilter='null' (the
    default unless a SecurityManager is used) or a
    sufficiently lax filter to allow the attacker provided
    object to be deserialized and d) the attacker knows the
    relative file path from the storage location used by
    FileStore to the file the attacker has control over
    then, using a specifically crafted request, the
    attacker will be able to trigger remote code execution
    via deserialization of the file under their control.
    Note that all of conditions a) to d) must be true for
    the attack to succeed.(CVE-2020-9484)

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-2020-1932
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1dec2854");
  script_set_attribute(attribute:"solution", value:
"Update the affected tomcat package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/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:L/AC:H/PR:L/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-2020-9484");

  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:"2020/09/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/09/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-el-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-jsp-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-servlet-3.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-webapps");
  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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/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 !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "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 = ["tomcat-7.0.76-8.h11.eulerosv2r7",
        "tomcat-admin-webapps-7.0.76-8.h11.eulerosv2r7",
        "tomcat-el-2.2-api-7.0.76-8.h11.eulerosv2r7",
        "tomcat-jsp-2.2-api-7.0.76-8.h11.eulerosv2r7",
        "tomcat-lib-7.0.76-8.h11.eulerosv2r7",
        "tomcat-servlet-3.0-api-7.0.76-8.h11.eulerosv2r7",
        "tomcat-webapps-7.0.76-8.h11.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"5", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "tomcat");
}