EulerOS 2.0 SP8 : php (EulerOS-SA-2022-2477)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(165862);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/10");

  script_cve_id(
    "CVE-2017-8923",
    "CVE-2017-9118",
    "CVE-2017-9119",
    "CVE-2017-9120"
  );
  script_xref(name:"IAVB", value:"2017-B-0060-S");

  script_name(english:"EulerOS 2.0 SP8 : php (EulerOS-SA-2022-2477)");

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

  - The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to
    string objects that result in a negative length, which allows remote attackers to cause a denial of
    service (application crash) or possibly have unspecified other impact by leveraging a script's use of .=
    with a long string. (CVE-2017-8923)

  - PHP 7.1.5 has an Out of bounds access in php_pcre_replace_impl via a crafted preg_replace call.
    (CVE-2017-9118)

  - The i_zval_ptr_dtor function in Zend/zend_variables.h in PHP 7.1.5 allows attackers to cause a denial of
    service (memory consumption and application crash) or possibly have unspecified other impact by triggering
    crafted operations on array data structures. (CVE-2017-9119)

  - PHP 7.x through 7.1.5 allows remote attackers to cause a denial of service (buffer overflow and
    application crash) or possibly have unspecified other impact via a long string because of an Integer
    overflow in mysqli_real_escape_string. (CVE-2017-9120)

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-2022-2477
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8e02da27");
  script_set_attribute(attribute:"solution", value:
"Update the affected php 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-2017-9120");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/10/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/10/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-pdo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-process");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:php-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 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/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var 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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "php-7.2.10-1.h31.eulerosv2r8",
  "php-cli-7.2.10-1.h31.eulerosv2r8",
  "php-common-7.2.10-1.h31.eulerosv2r8",
  "php-fpm-7.2.10-1.h31.eulerosv2r8",
  "php-gd-7.2.10-1.h31.eulerosv2r8",
  "php-ldap-7.2.10-1.h31.eulerosv2r8",
  "php-odbc-7.2.10-1.h31.eulerosv2r8",
  "php-pdo-7.2.10-1.h31.eulerosv2r8",
  "php-process-7.2.10-1.h31.eulerosv2r8",
  "php-recode-7.2.10-1.h31.eulerosv2r8",
  "php-soap-7.2.10-1.h31.eulerosv2r8",
  "php-xml-7.2.10-1.h31.eulerosv2r8",
  "php-xmlrpc-7.2.10-1.h31.eulerosv2r8"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "php");
}