Nextcloud Cookbook up to 0.9.x github.head_ref os command injection

Summaryinfo

A vulnerability was found in Nextcloud Cookbook up to 0.9.x. It has been rated as critical. This issue affects some unknown processing. The manipulation of the argument github.head_ref leads to os command injection. This vulnerability is traded as CVE-2023-31128. It is possible to initiate the attack remotely. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Nextcloud Cookbook up to 0.9.x (Cloud Software). This issue affects an unknown function. The manipulation of the argument github.head_ref with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared 05/27/2023 as GHSA-c5pc-mf2f-xq8h. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-31128 since 04/24/2023. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Cloud Software

Vendor

• Nextcloud

Name

• Cookbook

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9

License

• open-source

Website

• Product: https://github.com/nextcloud/cookbook/

CPE 2.3info

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CPE 2.2info

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