Vulnerabilities > CVE-2020-6008 - Unrestricted Upload of File with Dangerous Type vulnerability in Lifterlms

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
lifterlms
CWE-434
critical
nessus
NVD
Published: 2020-03-31
Updated: 2020-04-01

Summary

LifterLMS Wordpress plugin version below 3.37.15 is vulnerable to arbitrary file write leading to remote code execution

Vulnerable Configurations

Part Description Count
Application
Lifterlms
232

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing Functionality Not Properly Constrained by ACLs
    In applications, particularly web applications, access to functionality is mitigated by the authorization framework, whose job it is to map ACLs to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application or can run queries for data that he is otherwise not supposed to.
  • Privilege Abuse
    An adversary is able to exploit features of the target that should be reserved for privileged users or administrators but are exposed to use by lower or non-privileged accounts. Access to sensitive information and functionality must be controlled to ensure that only authorized users are able to access these resources. If access control mechanisms are absent or misconfigured, a user may be able to access resources that are intended only for higher level users. An adversary may be able to exploit this to utilize a less trusted account to gain information and perform activities reserved for more trusted accounts. This attack differs from privilege escalation and other privilege stealing attacks in that the adversary never actually escalates their privileges but instead is able to use a lesser degree of privilege to access resources that should be (but are not) reserved for higher privilege accounts. Likewise, the adversary does not exploit trust or subvert systems - all control functionality is working as configured but the configuration does not adequately protect sensitive resources at an appropriate level.

Nessus

NASL familyCGI abuses
NASL idWORDPRESS_PLUGIN_LIFTERLMS_3_37_15.NASL
descriptionThe WordPress application running on the remote host has a version of the
last seen2020-05-03
modified2020-04-30
plugin id136176
published2020-04-30
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/136176
titleWordPress Plugin 'LifterLMS' < 3.37.15 Arbitrary File Write
code
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(136176);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/01");

  script_cve_id("CVE-2020-6008");

  script_name(english:"WordPress Plugin 'LifterLMS' < 3.37.15 Arbitrary File Write");

  script_set_attribute(attribute:"synopsis", value:
"The remote WordPress application has a plugin installed that is vulnerable to an arbitrary file write vulnerability.");
  script_set_attribute(attribute:"description", value:
"The WordPress application running on the remote host has a version of the 'LifterLMS' plugin that is prior to 3.37.15
and, thus, is affected by an arbitrary file write vulnerability that can allow the attackers to write and execute
arbitrary PHP code on the server by changing their first name on their profile to PHP code.");
  # https://research.checkpoint.com/2020/e-learning-platforms-getting-schooled-multiple-vulnerabilities-in-wordpress-most-popular-learning-management-system-plugins/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b38b6cba");
  script_set_attribute(attribute:"see_also", value:"https://make.lifterlms.com/2020/03/30/lifterlms-version-3-37-15/");
  script_set_attribute(attribute:"solution", value:
"Update the 'LifterLMS' plugin to version 3.37.15 or later through the administrative dashboard.");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-6008");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/03/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/30");

  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) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("wordpress_plugin_detect.nbin");
  script_require_keys("installed_sw/WordPress", "www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

app_info = vcf::wordpress::plugin::get_app_info(plugin:'lifterlms');
vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { 'fixed_version' : '3.37.15' }
];

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

The Hacker News

idTHN:047CA924D8DECEDDC49DB26C77A3339B
last seen2020-04-30
modified2020-04-30
published2020-04-30
reporterThe Hacker News
sourcehttps://thehackernews.com/2020/04/wordpress-lms-plugins.html
titleCritical Bugs Found in 3 Popular e-Learning Plugins for WordPress Sites

References