Debian DSA-4401-1 : wordpress - security update - Nessus

Critical Plugin ID: 122551

This page contains detailed information about the Debian DSA-4401-1 : wordpress - security update Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 122551
Name: Debian DSA-4401-1 : wordpress - security update
Filename: debian_DSA-4401.nasl
Vulnerability Published: 2018-12-14
This Plugin Published: 2019-03-04
Last Modification Time: 2019-04-10
Plugin Version: 1.4
Plugin Type: local
Plugin Family: Debian Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/Debian/dpkg-l, Host/Debian/release, Host/local_checks_enabled

Vulnerability Information

Severity: Critical
Vulnerability Published: 2018-12-14
Patch Published: 2019-03-01
CVE [?]: CVE-2018-20147, CVE-2018-20148, CVE-2018-20149, CVE-2018-20150, CVE-2018-20151, CVE-2018-20152, CVE-2018-20153, CVE-2019-8942
CPE [?]: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:wordpress

Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities were discovered in Wordpress, a web blogging tool. They allowed remote attackers to perform various Cross-Side Scripting (XSS) and PHP injections attacks, delete files, leak potentially sensitive data, create posts of unauthorized types, or cause denial-of-service by application crash.

Solution

Upgrade the wordpress packages.

For the stable distribution (stretch), these problems have been fixed in version 4.7.5+dfsg-2+deb9u5.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Debian DSA-4401-1 : wordpress - security update vulnerability:

Metasploit: exploit/multi/http/wp_crop_rce
[WordPress Crop-image Shell Upload]
Exploit-DB: exploits/php/remote/46662.rb
[EDB-46662: WordPress Core 5.0.0 - Crop-image Shell Upload (Metasploit)]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20147]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20148]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20149]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20150]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20151]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20152]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2018-20153]
GitHub: https://github.com/El-Palomo/DerpNStink
[CVE-2019-8942]
GitHub: https://github.com/v0lck3r/CVE-2019-8943
[CVE-2019-8942: Exploit of CVE-2019-8942 and CVE-2019-8943]
GitHub: https://github.com/nth347/CVE-2018-20148_exploit
[CVE-2018-20148: Exploit for CVE-2018-20148 - WordPress PHAR deserialization via XMLRPC]
GitHub: https://github.com/tthseus/WooCommerce-CVEs
[CVE-2018-20148: CVE 2018-20148 and 2019-9168]
GitHub: https://github.com/brianwrf/WordPress_4.9.8_RCE_POC
[CVE-2019-8942: A simple PoC for WordPress RCE (author priviledge), refer to CVE-2019-8942 and ...]
GitHub: https://github.com/synacktiv/CVE-2019-8942
[CVE-2019-8942: WordPress crop-image exploitation]
GitHub: https://github.com/synod2/WP_CROP_RCE
[CVE-2019-8942: Cve-2019-8942, cve-2019-8943]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.2 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	9.1 (Critical)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.1 (Critical)

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4401. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(122551);
  script_version("1.4");
  script_cvs_date("Date: 2019/04/10 16:10:16");

  script_cve_id("CVE-2018-20147", "CVE-2018-20148", "CVE-2018-20149", "CVE-2018-20150", "CVE-2018-20151", "CVE-2018-20152", "CVE-2018-20153", "CVE-2019-8942");
  script_xref(name:"DSA", value:"4401");

  script_name(english:"Debian DSA-4401-1 : 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 PHP injections attacks, delete files, leak
potentially sensitive data, create posts of unauthorized types, or
cause denial-of-service by application crash."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916403"
  );
  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://www.debian.org/security/2019/dsa-4401"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the wordpress packages.

For the stable distribution (stretch), these problems have been fixed
in version 4.7.5+dfsg-2+deb9u5."
  );
  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:F/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:F/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:"metasploit_name", value:'WordPress Crop-image Shell Upload');
  script_set_attribute(attribute:"exploit_framework_metasploit", 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:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/04");
  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:"9.0", prefix:"wordpress", reference:"4.7.5+dfsg-2+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-l10n", reference:"4.7.5+dfsg-2+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-theme-twentyfifteen", reference:"4.7.5+dfsg-2+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-theme-twentyseventeen", reference:"4.7.5+dfsg-2+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"wordpress-theme-twentysixteen", reference:"4.7.5+dfsg-2+deb9u5")) 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");

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/debian_DSA-4401.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-4401.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DSA-4401.nasl

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How to Run

Here is how to run the Debian DSA-4401-1 : wordpress - security update as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Debian Local Security Checks plugin family.
On the right side table select Debian DSA-4401-1 : wordpress - security update plugin ID 122551.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl debian_DSA-4401.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DSA-4401.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - debian_DSA-4401.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state debian_DSA-4401.nasl -t <IP/HOST>

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References

DSA | Debian Security Advisory:

4401

See also:

Similar and related Nessus plugins:

122100 - Debian DLA-1673-1 : wordpress security update
123529 - Debian DLA-1742-1 : wordpress security update
119615 - WordPress < 4.9.9 / 5.x < 5.0.1 Multiple Vulnerabilities

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-4401.nasl version 1.4. For more plugins, visit the Nessus Plugin Library.

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Debian DSA-4401-1 : wordpress - security update - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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