CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
32.9%
The tj-actions/verify-changed-files
action allows for command injection in changed filenames, allowing an attacker to execute arbitrary code and potentially leak secrets. The verify-changed-files
workflow returns the list of files changed within a workflow execution. This could potentially allow filenames that contain special characters such as ;
which can be used by an attacker to take over the GitHub Runner if the output value is used in a raw fashion (thus being directly replaced before execution) inside a run
block. By running custom commands, an attacker may be able to steal secrets such as GITHUB_TOKEN
if triggered on other events than pull_request
.
This has been patched in versions 17 and 17.0.0 by enabling safe_output
by default and returning filename paths escaping special characters for bash environments.
Vendor | Product | Version | CPE |
---|---|---|---|
tj-actions | verify-changed-files | * | cpe:2.3:a:tj-actions:verify-changed-files:*:*:*:*:*:github:*:* |