Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : PHP vulnerabilities (USN-3646-1)

2018-05-15T00:00:00
ID UBUNTU_USN-3646-1.NASL
Type nessus
Reporter Ubuntu Security Notice (C) 2018-2020 Canonical, Inc. / NASL script (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2018-05-15T00:00:00

Description

It was discovered that PHP incorrectly handled opcache access controls when configured to use PHP-FPM. A local user could possibly use this issue to obtain sensitive information from another user's PHP applications. (CVE-2018-10545)

It was discovered that the PHP iconv stream filter incorrect handled certain invalid multibyte sequences. A remote attacker could possibly use this issue to cause PHP to hang, resulting in a denial of service. (CVE-2018-10546)

It was discovered that the PHP PHAR error pages incorrectly filtered certain data. A remote attacker could possibly use this issue to perform a reflected XSS attack. (CVE-2018-10547)

It was discovered that PHP incorrectly handled LDAP. A malicious remote LDAP server could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2018-10548)

It was discovered that PHP incorrectly handled certain exif tags in JPEG images. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 17.10, and Ubuntu 18.04 LTS. (CVE-2018-10549).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3646-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(109812);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/17");

  script_cve_id("CVE-2018-10545", "CVE-2018-10546", "CVE-2018-10547", "CVE-2018-10548", "CVE-2018-10549");
  script_xref(name:"USN", value:"3646-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : PHP vulnerabilities (USN-3646-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description",
    value:
"It was discovered that PHP incorrectly handled opcache access controls
when configured to use PHP-FPM. A local user could possibly use this
issue to obtain sensitive information from another user's PHP
applications. (CVE-2018-10545)

It was discovered that the PHP iconv stream filter incorrect handled
certain invalid multibyte sequences. A remote attacker could possibly
use this issue to cause PHP to hang, resulting in a denial of service.
(CVE-2018-10546)

It was discovered that the PHP PHAR error pages incorrectly filtered
certain data. A remote attacker could possibly use this issue to
perform a reflected XSS attack. (CVE-2018-10547)

It was discovered that PHP incorrectly handled LDAP. A malicious
remote LDAP server could possibly use this issue to cause PHP to
crash, resulting in a denial of service. (CVE-2018-10548)

It was discovered that PHP incorrectly handled certain exif tags in
JPEG images. A remote attacker could possibly use this issue to cause
PHP to crash, resulting in a denial of service. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 17.10, and Ubuntu 18.04 LTS.
(CVE-2018-10549).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3646-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php7.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php7.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php7.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.1-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.1-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.1-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.2-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.2-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.2-fpm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2018-2020 Canonical, Inc. / NASL script (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(14\.04|16\.04|17\.10|18\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 16.04 / 17.10 / 18.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"libapache2-mod-php5", pkgver:"5.5.9+dfsg-1ubuntu4.25")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"php5-cgi", pkgver:"5.5.9+dfsg-1ubuntu4.25")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"php5-cli", pkgver:"5.5.9+dfsg-1ubuntu4.25")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"php5-fpm", pkgver:"5.5.9+dfsg-1ubuntu4.25")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"libapache2-mod-php7.0", pkgver:"7.0.30-0ubuntu0.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"php7.0-cgi", pkgver:"7.0.30-0ubuntu0.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"php7.0-cli", pkgver:"7.0.30-0ubuntu0.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"php7.0-fpm", pkgver:"7.0.30-0ubuntu0.16.04.1")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"libapache2-mod-php7.1", pkgver:"7.1.17-0ubuntu0.17.10.1")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"php7.1-cgi", pkgver:"7.1.17-0ubuntu0.17.10.1")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"php7.1-cli", pkgver:"7.1.17-0ubuntu0.17.10.1")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"php7.1-fpm", pkgver:"7.1.17-0ubuntu0.17.10.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"libapache2-mod-php7.2", pkgver:"7.2.5-0ubuntu0.18.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"php7.2-cgi", pkgver:"7.2.5-0ubuntu0.18.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"php7.2-cli", pkgver:"7.2.5-0ubuntu0.18.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"php7.2-fpm", pkgver:"7.2.5-0ubuntu0.18.04.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libapache2-mod-php5 / libapache2-mod-php7.0 / libapache2-mod-php7.1 / etc");
}