CVE-2020-15228 Information

Description

In the @actions/core npm module before version 1.2.6addPath and exportVariable functions communicate with the Actions Runner over stdout by generating a string in a specific format. Workflows that log untrusted data to stdout may invoke these commands resulting in the path or environment variables being modified without the intention of the workflow or action author. The runner will release an update that disables the set-env and add-path workflow commands in the near future. For now users should upgrade to @actions/core v1.2.6 or later and replace any instance of the set-env or add-path commands in their workflows with the new Environment File Syntax. Workflows and actions using the old commands or older versions of the toolkit will start to warn then error out during workflow execution.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Reference

http://packetstormsecurity.com/files/159794/GitHub-Widespread-Injection.html https://github.com/actions/toolkit/security/advisories/GHSA-mfwh-5m23-j46w

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

5.0