Vulnerabilities > CVE-2017-9063 - Cross-site Scripting vulnerability in Wordpress

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-975-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100602);
  script_version("3.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2017-8295", "CVE-2017-9061", "CVE-2017-9062", "CVE-2017-9063", "CVE-2017-9064", "CVE-2017-9065");

  script_name(english:"Debian DLA-975-1 : wordpress security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities were discovered in wordpress, a web blogging
tool. The Common Vulnerabilities and Exposures project identifies the
following issues.

CVE-2017-8295

Potential unauthorized password reset vulnerability. More information
are available at :

https://exploitbox.io/vuln/WordPress-Exploit-4-7-Unauth-Password-Reset
-0day-CVE-2017-8295.html

CVE-2017-9061

A cross-site scripting (XSS) vulnerability exists when someone
attempts to upload very large files.

CVE-2017-9062

Improper handling of post meta data values in the XML-RPC API.

CVE-2017-9063

Cross-site scripting (XSS) vulnerability in the customizer.

CVE-2017-9064

A Cross Site Request Forgery (CSRF) vulnerability exists in the
filesystem credentials dialog.

CVE-2017-9065

Lack of capability checks for post meta data in the XML-RPC API.

For Debian 7 'Wheezy', these problems have been fixed in version
3.6.1+dfsg-1~deb7u15.

We recommend that you upgrade your wordpress packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  # https://exploitbox.io/vuln/WordPress-Exploit-4-7-Unauth-Password-Reset-0day-CVE-2017-8295.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5a4aa4f1"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2017/06/msg00004.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/wordpress"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected wordpress, and wordpress-l10n packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/UI:R/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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wordpress");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wordpress-l10n");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"wordpress", reference:"3.6.1+dfsg-1~deb7u15")) flag++;
if (deb_check(release:"7.0", prefix:"wordpress-l10n", reference:"3.6.1+dfsg-1~deb7u15")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3870. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100561);
  script_version("3.11");
  script_cvs_date("Date: 2018/11/10 11:49:38");

  script_cve_id("CVE-2017-8295", "CVE-2017-9061", "CVE-2017-9062", "CVE-2017-9063", "CVE-2017-9064", "CVE-2017-9065");
  script_xref(name:"DSA", value:"3870");

  script_name(english:"Debian DSA-3870-1 : wordpress - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities were discovered in wordpress, a web blogging
tool. They would allow remote attackers to force password resets, and
perform various cross-site scripting and cross-site request forgery
attacks."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862053"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862816"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/wordpress"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-3870"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the wordpress packages.

For the stable distribution (jessie), these problems have been fixed
in version 4.1+dfsg-1+deb8u14.

For the upcoming stable (stretch) and unstable (sid) distributions,
these problems have been fixed in version 4.7.5+dfsg-1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/UI:R/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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wordpress");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"8.0", prefix:"wordpress", reference:"4.1+dfsg-1+deb8u14")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-l10n", reference:"4.1+dfsg-1+deb8u14")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-theme-twentyfifteen", reference:"4.1+dfsg-1+deb8u14")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-theme-twentyfourteen", reference:"4.1+dfsg-1+deb8u14")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-theme-twentythirteen", reference:"4.1+dfsg-1+deb8u14")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100298);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id(
    "CVE-2017-9061",
    "CVE-2017-9062",
    "CVE-2017-9063",
    "CVE-2017-9064",
    "CVE-2017-9065",
    "CVE-2017-9066"
  );
  script_bugtraq_id(98509);

  script_name(english:"WordPress < 4.7.5 Multiple Vulnerabilities");
  script_summary(english:"Checks the version of WordPress.");

  script_set_attribute(attribute:"synopsis", value:
"A PHP application running on the remote web server is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the WordPress
application running on the remote web server is prior to 4.7.5.
It is, therefore, affected by multiple vulnerabilities :

  - A DOM-based cross-site scripting (XSS) vulnerability
    exists in the uploadSizeError() function within file
    wp-includes/js/plupload/handlers.js when handling overly
    large file uploads due to improper validation of
    user-supplied input to file names before returning it in
    error messages. An unauthenticated, remote attacker can
    exploit this, via a specially crafted request, to
    execute arbitrary script code in a user's browser
    session. (CVE-2017-9061)

  - A flaw exists in the set_custom_fields() function within
    file wp-includes/class-wp-xmlrpc-server.php when
    accessing post meta data due to improper validation of
    user-supplied input. An authenticated, remote attacker
    can exploit this to gain unauthorized access to meta
    data. (CVE-2017-9062)

  - A stored cross-site scripting (XSS) vulnerability exists
    within file wp-admin/customize.php script due to
    improper validation of user-supplied input to the blog
    name before returning it to users. An authenticated,
    remote attacker can exploit this, via a specially
    crafted request, to execute arbitrary script code in a
    user's browser session. (CVE-2017-9063)

  - A cross-site request forgery (XSRF) vulnerability exists
    in the request_filesystem_credentials() function within
    file /wp-admin/includes/file.php due to a failure to
    require multiple steps, explicit confirmation, or a
    unique token when performing certain sensitive actions.
    An unauthenticated, remote attacker can exploit this,
    by convincing a user to follow a specially crafted link,
    to disclose the user credentials. (CVE-2017-9064)

  - A flaw exists in the XML-RPC API, specifically within
    file wp-includes/class-wp-xmlrpc-server.php in the
    _insert_post() function, when handling post meta data
    due to a lack of capability checks. An unauthenticated,
    remote attacker can exploit this to manipulate posts
    without having the required capabilities.
    (CVE-2017-9065)

  - A flaw exists in the WP_Http::request() function within
    file wp-includes/class-http.php due to improper
    validation of user-supplied iput. An unauthenticated,
    remote attacker can exploit this to redirect the user to
    a URL of the attacker's choosing. (CVE-2017-9066)

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://wordpress.org/news/2017/05/wordpress-4-7-5/");
  script_set_attribute(attribute:"see_also", value:"https://codex.wordpress.org/Version_4.7.5");
  script_set_attribute(attribute:"solution", value:
"Upgrade to WordPress version 4.7.5 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  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_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-9064");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/05/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/19");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:wordpress:wordpress");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("wordpress_detect.nasl");
  script_require_keys("www/PHP", "installed_sw/WordPress", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80, 443);

  exit(0);
}

include("vcf.inc");
include("http.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

app = "WordPress";
port = get_http_port(default:80, php:TRUE);

app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE);
vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { "min_version":"2.5", "fixed_version":"3.7.21", "fixed_display" : "3.7.21 / 4.7.5" },
  { "min_version":"3.8", "fixed_version":"3.8.21", "fixed_display" : "3.8.21 / 4.7.5" },
  { "min_version":"3.9", "fixed_version":"3.9.19", "fixed_display" : "3.9.19 / 4.7.5" },
  { "min_version":"4.0", "fixed_version":"4.0.18", "fixed_display" : "4.0.18 / 4.7.5" },
  { "min_version":"4.1", "fixed_version":"4.1.18", "fixed_display" : "4.1.18 / 4.7.5" },
  { "min_version":"4.2", "fixed_version":"4.2.15", "fixed_display" : "4.2.15 / 4.7.5" },
  { "min_version":"4.3", "fixed_version":"4.3.11", "fixed_display" : "4.3.11 / 4.7.5" },
  { "min_version":"4.4", "fixed_version":"4.4.10", "fixed_display" : "4.4.10 / 4.7.5" },
  { "min_version":"4.5", "fixed_version":"4.5.9", "fixed_display" : "4.5.9 / 4.7.5" },
  { "min_version":"4.6", "fixed_version":"4.6.6", "fixed_display" : "4.6.6 / 4.7.5" },
  { "min_version":"4.7", "fixed_version":"4.7.5", "fixed_display" : "4.7.5" }
];

vcf::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING,
  flags:{xss:TRUE,xsrf:TRUE}
);