Vulnerabilities > CVE-2019-17671 - Information Exposure vulnerability in multiple products

047910
CVSS 5.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
network
low complexity
wordpress
debian
CWE-200
nessus
exploit available
NVD
Published: 2019-10-17
Updated: 2024-11-21

Summary

In WordPress before 5.2.4, unauthenticated viewing of certain content is possible because the static query property is mishandled.

Vulnerable Configurations

Part Description Count
Application
Wordpress
891
OS
Debian
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Exploit-Db

idEDB-ID:47690
last seen2019-11-19
modified2019-10-14
published2019-10-14
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/47690
titleWordPress Core < 5.2.3 - Viewing Unauthenticated/Password/Private Posts

Nessus

  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4677.NASL
    descriptionSeveral vulnerabilities were discovered in Wordpress, a web blogging tool. They allowed remote attackers to perform various Cross-Side Scripting (XSS) and Cross-Site Request Forgery (CSRF) attacks, create files on the server, disclose private information, create open redirects, poison cache, and bypass authorization access and input sanitation.
    last seen2020-05-12
    modified2020-05-07
    plugin id136373
    published2020-05-07
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136373
    titleDebian DSA-4677-1 : wordpress - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4677. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(136373);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/19");

  script_cve_id("CVE-2019-16217", "CVE-2019-16218", "CVE-2019-16219", "CVE-2019-16220", "CVE-2019-16221", "CVE-2019-16222", "CVE-2019-16223", "CVE-2019-16780", "CVE-2019-16781", "CVE-2019-17669", "CVE-2019-17671", "CVE-2019-17672", "CVE-2019-17673", "CVE-2019-17674", "CVE-2019-17675", "CVE-2019-20041", "CVE-2019-20042", "CVE-2019-20043", "CVE-2019-9787", "CVE-2020-11025", "CVE-2020-11026", "CVE-2020-11027", "CVE-2020-11028", "CVE-2020-11029", "CVE-2020-11030");
  script_xref(name:"DSA", value:"4677");
  script_xref(name:"IAVA", value:"2020-A-0191-S");

  script_name(english:"Debian DSA-4677-1 : 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 allowed remote attackers to perform various Cross-Side
Scripting (XSS) and Cross-Site Request Forgery (CSRF) attacks, create
files on the server, disclose private information, create open
redirects, poison cache, and bypass authorization access and input
sanitation."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=924546"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=939543"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942459"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=946905"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959391"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/wordpress"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/wordpress"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/buster/wordpress"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2020/dsa-4677"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the wordpress packages.

For the oldstable distribution (stretch), these problems have been
fixed in version 4.7.5+dfsg-2+deb9u6.

For the stable distribution (buster), these problems have been fixed
in version 5.0.4+dfsg1-1+deb10u2."
  );
  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:"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:10.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/07");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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:"10.0", prefix:"wordpress", reference:"5.0.4+dfsg1-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-l10n", reference:"5.0.4+dfsg1-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-theme-twentynineteen", reference:"5.0.4+dfsg1-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-theme-twentyseventeen", reference:"5.0.4+dfsg1-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-theme-twentysixteen", reference:"5.0.4+dfsg1-1+deb10u2")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress", reference:"4.7.5+dfsg-2+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-l10n", reference:"4.7.5+dfsg-2+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-theme-twentyfifteen", reference:"4.7.5+dfsg-2+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-theme-twentyseventeen", reference:"4.7.5+dfsg-2+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-theme-twentysixteen", reference:"4.7.5+dfsg-2+deb9u6")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1980.NASL
    descriptionSeveral vulnerabilities in wordpress, a web blogging tool, have been fixed. CVE-2019-17669 Server Side Request Forgery (SSRF) vulnerability because URL validation does not consider the interpretation of a name as a series of hex characters. CVE-2019-17670 Server Side Request Forgery (SSRF) vulnerability was reported in wp_validate_redirect(). Normalize the path when validating the location for relative URLs. CVE-2019-17671 Unauthenticated viewing of certain content (private or draft posts) is possible because the static query property is mishandled. CVE-2019-17675 Wordpress does not properly consider type confusion during validation of the referer in the admin pages. This vulnerability affects the check_admin_referer() WordPress function. For Debian 8
    last seen2020-06-01
    modified2020-06-02
    plugin id130521
    published2019-11-06
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130521
    titleDebian DLA-1980-1 : wordpress security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1980-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(130521);
  script_version("1.5");
  script_cvs_date("Date: 2019/12/20");

  script_cve_id("CVE-2019-17669", "CVE-2019-17670", "CVE-2019-17671", "CVE-2019-17675");

  script_name(english:"Debian DLA-1980-1 : 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 in wordpress, a web blogging tool, have been
fixed.

CVE-2019-17669

Server Side Request Forgery (SSRF) vulnerability because URL
validation does not consider the interpretation of a name as a series
of hex characters.

CVE-2019-17670

Server Side Request Forgery (SSRF) vulnerability was reported in
wp_validate_redirect(). Normalize the path when validating the
location for relative URLs.

CVE-2019-17671

Unauthenticated viewing of certain content (private or draft posts) is
possible because the static query property is mishandled.

CVE-2019-17675

Wordpress does not properly consider type confusion during validation
of the referer in the admin pages. This vulnerability affects the
check_admin_referer() WordPress function.

For Debian 8 'Jessie', these problems have been fixed in version
4.1.28+dfsg-0+deb8u1.

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."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2019/11/msg00000.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/wordpress"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected 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-2019-17669");
  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:"p-cpe:/a:debian:debian_linux:wordpress-theme-twentyfifteen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wordpress-theme-twentyfourteen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wordpress-theme-twentythirteen");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 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:"4.1.28+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-l10n", reference:"4.1.28+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-theme-twentyfifteen", reference:"4.1.28+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-theme-twentyfourteen", reference:"4.1.28+dfsg-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"wordpress-theme-twentythirteen", reference:"4.1.28+dfsg-0+deb8u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4599.NASL
    descriptionSeveral vulnerabilities were discovered in Wordpress, a web blogging tool. They allowed remote attackers to perform various Cross-Side Scripting (XSS) and Cross-Site Request Forgery (CSRF) attacks, create open redirects, poison cache, and bypass authorization access and input sanitation.
    last seen2020-06-01
    modified2020-06-02
    plugin id132736
    published2020-01-09
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132736
    titleDebian DSA-4599-1 : wordpress - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4599. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(132736);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/13");

  script_cve_id("CVE-2019-16217", "CVE-2019-16218", "CVE-2019-16219", "CVE-2019-16220", "CVE-2019-16221", "CVE-2019-16222", "CVE-2019-16223", "CVE-2019-16780", "CVE-2019-16781", "CVE-2019-17669", "CVE-2019-17671", "CVE-2019-17672", "CVE-2019-17673", "CVE-2019-17674", "CVE-2019-17675", "CVE-2019-20041", "CVE-2019-20042", "CVE-2019-20043");
  script_xref(name:"DSA", value:"4599");

  script_name(english:"Debian DSA-4599-1 : 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 allowed remote attackers to perform various Cross-Side
Scripting (XSS) and Cross-Site Request Forgery (CSRF) attacks, create
open redirects, poison cache, and bypass authorization access and
input sanitation."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=939543"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942459"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=946905"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/wordpress"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/buster/wordpress"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2020/dsa-4599"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the wordpress packages.

For the stable distribution (buster), these problems have been fixed
in version 5.0.4+dfsg1-1+deb10u1."
  );
  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:"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:10.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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:"10.0", prefix:"wordpress", reference:"5.0.4+dfsg1-1+deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-l10n", reference:"5.0.4+dfsg1-1+deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-theme-twentynineteen", reference:"5.0.4+dfsg1-1+deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-theme-twentyseventeen", reference:"5.0.4+dfsg1-1+deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"wordpress-theme-twentysixteen", reference:"5.0.4+dfsg1-1+deb10u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyCGI abuses
    NASL idWORDPRESS_5_2_4.NASL
    descriptionAccording to its self-reported version number, the WordPress application running on the remote web server is affected by multiple vulnerabilities: - A cross-site scripting (XSS) vulnerability exists due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user
    last seen2020-06-01
    modified2020-06-02
    plugin id129849
    published2019-10-15
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/129849
    titleWordPress < 5.2.4 Multiple Vulnerabilities
    code
    #
# (C) Tenable Network Security, Inc.
#

# The descriptive text and package checks in this plugin were
# extracted from WordPress Security Advisory wordpress-5-2-4-security-release.

include('compat.inc');

if (description)
{
  script_id(129849);
  script_version("1.5");
  script_cvs_date("Date: 2019/12/20");

  script_cve_id("CVE-2019-17671");

  script_name(english:"WordPress < 5.2.4 Multiple Vulnerabilities");
  script_summary(english:"Checks 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 affected
by multiple vulnerabilities:
  - A cross-site scripting (XSS) vulnerability exists due to improper validation of user-supplied input before 
    returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click a 
    specially crafted URL, to execute arbitrary script code in a user's browser session.
  
  - An information disclosure vulnerability exists in Wordpress. An unauthenticated, remote attacker can exploit this 
    to disclose potentially sensitive information regarding unauthenticated posts.

  - A server-side request forgery vulnerability exists in Wordpress due to insufficient validation of URLs. An 
    unauthenticated, remote attacker can exploit this, by submitting specifically crafted URLs, to cause the server to 
    make requests on their behalf. Successful attacks may allow an attacker to request / update data which was not 
    intended to be accessed by a user of the application.
    
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version 
number.");
  script_set_attribute(attribute:"see_also", value:"https://wordpress.org/support/wordpress-version/version-5-2-4/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to WordPress version 5.2.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17671");

  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:"2019/10/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/15");

  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) 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';
get_install_count(app_name:app, exit_if_zero:TRUE);
port = get_http_port(default:80, php:TRUE);

app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE);
constraints = [{ 'max_version' : '5.2.3', 'fixed_version' : '5.2.4' }];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);

References