OneSignal on Organization Workflow Permission Zapier.yml command injection

Summaryinfo

A vulnerability was found in OneSignal on Organization. It has been classified as critical. Affected by this issue is some unknown functionality of the file Zapier.yml of the component Workflow Permission Handler. The manipulation leads to command injection. This vulnerability is traded as CVE-2023-28430. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in OneSignal on Organization (unknown version) and classified as critical. This issue affects an unknown code block of the file Zapier.yml of the component Workflow Permission Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OneSignal is an email, sms, push notification, and in-app message service for mobile apps.The Zapier.yml workflow is triggered on issues (types: [closed]) (i.e., when an Issue is closed). The workflow starts with full write-permissions GitHub repository token since the default workflow permissions on Organization/Repository level are set to read-write. This workflow runs the following step with data controlled by the comment `(${{ github.event.issue.title }} – the full title of the Issue)`, allowing an attacker to take over the GitHub Runner and run custom commands, potentially stealing any secret (if used), or altering the repository. This issue was found with CodeQL using javascript’s Expression injection in Actions query. This issue has been addressed in the repositories github action. No actions are required by users. This issue is also tracked as `GHSL-2023-051`.

The weakness was shared 03/28/2023 as GHSL-2023-051. It is possible to read the advisory at securitylab.github.com. The identification of this vulnerability is CVE-2023-28430 since 03/15/2023. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Applying the patch 4a66f4237fb51dcc2236889038d488cd49b0f433 is able to eliminate this problem. The bugfix is ready for download at github.com.

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• OneSignal

License

• open-source

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CPE 2.2info

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