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CVE-2023-31128 Detail


NextCloud Cookbook is a recipe library app. Prior to commit a46d9855 on the `master` branch and commit 489bb744 on the `main-0.9.x` branch, the `pull-checks.yml` workflow is vulnerable to command injection attacks because of using an untrusted `github.head_ref` field. The `github.head_ref` value is an attacker-controlled value. Assigning the value to `zzz";echo${IFS}"hello";#` can lead to command injection. Since the permission is not restricted, the attacker has a write-access to the repository. This issue is fixed in commit a46d9855 on the `master` branch and commit 489bb744 on the `main-0.9.x` branch. There is no risk for the user of the app within the NextCloud server. This only affects the main repository and possible forks of it. Those who have forked the NextCloud Cookbook repository should make sure their forks are on the latest version to prevent code injection attacks and similar.


NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/nextcloud/cookbook/blob/a14d6ffc4d45e1447556f68606129dfd6c1505cf/.github/workflows/pull-checks.yml#L67 Product 
https://github.com/nextcloud/cookbook/commit/489bb744 Patch 
https://github.com/nextcloud/cookbook/commit/a46d98559e2c64292da9ffb06138cccc2e50ae1b Patch 
https://github.com/nextcloud/cookbook/security/advisories/GHSA-c5pc-mf2f-xq8h Vendor Advisory 
https://securitylab.github.com/research/github-actions-untrusted-input/ Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') cwe source acceptance level NIST   GitHub, Inc.  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
NVD Published Date:
NVD Last Modified:
GitHub, Inc.