// For flags

CVE-2020-15145

Local privilege elevation in Composer-Setup for Windows

Severity Score

8.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In Composer-Setup for Windows before version 6.0.0, if the developer's computer is shared with other users, a local attacker may be able to exploit the following scenarios. 1. A local regular user may modify the existing `C:\ProgramData\ComposerSetup\bin\composer.bat` in order to get elevated command execution when composer is run by an administrator. 2. A local regular user may create a specially crafted dll in the `C:\ProgramData\ComposerSetup\bin` folder in order to get Local System privileges. See: https://itm4n.github.io/windows-server-netman-dll-hijacking. 3. If the directory of the php.exe selected by the user is not in the system path, it is added without checking that it is admin secured, as per Microsoft guidelines. See: https://msrc-blog.microsoft.com/2018/04/04/triaging-a-dll-planting-vulnerability.

En Composer-Setup para Windows versiones anteriores a 6.0.0, si la computadora del desarrollador es compartida con otros usuarios, un atacante local puede ser capaz de explotar los siguientes escenarios. 1. Un usuario habitual local puede modificar el archivo "C:\ProgramData\ComposerSetup\bin\composer.bat" existente para conseguir una ejecución de comandos elevados cuando composer es ejecutado por un administrador. 2. Un usuario habitual local puede crear una dll especialmente diseñada en la carpeta "C:\ProgramData\ComposerSetup\bin" para alcanzar privilegios del Sistema Local. Consulte: https://itm4n.github.io/windows-server-netman-dll-hijacking. 3. Si el directorio de php.exe seleccionado por el usuario no está en la ruta del sistema, es agregado sin comprobar que esté protegido por el administrador, según las mejores practicas de Microsoft. Consulte: https://msrc-blog.microsoft.com/2018/04/04/triaging-a-dll-planting-vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-06-25 CVE Reserved
  • 2020-08-14 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-276: Incorrect Default Permissions
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Getcomposer
Search vendor "Getcomposer"
 Composer-setup
Search vendor "Getcomposer" for product "Composer-setup"
 < 6.0.0
Search vendor "Getcomposer" for product "Composer-setup" and version " < 6.0.0"
windows
Affected