CVE-2020-15145

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.

CVSS v3.0 8.2 HIGH
CVSS v2.0 4.4 MEDIUM

8.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.5 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

4.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/composer/windows-setup/security/advisories/GHSA-wgrx-r3qv-332c	Third Party Advisory
https://github.com/composer/windows-setup/commit/ca9f1435d368e3377e82d60ef0c7b795afa9f804	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:getcomposer:composer-setup:*:*:*:*:*:windows:*:*

Information

Published : 2020-08-14 10:15

Updated : 2020-08-21 07:54

NVD link : CVE-2020-15145

Mitre link : CVE-2020-15145

JSON object : View

CWE

CWE-276

Incorrect Default Permissions

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Products Affected

getcomposer

composer-setup

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