CVE-2023-31128
Assigner: GitHub_M
Published: 2023-05-26T21:49:06.582Z
State: PUBLISHED
title: NextCloud Cookbook's pull-checks.yml workflow is vulnerable to OS Command Injection
problemTypes: descriptions: cweId: CWE-78
description: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
version: 3.1
affected: vendor: nextcloud
product: cookbook
versions: version: master < a46d9855
status: affected
version: main-0.9.x < 489bb744
status: affected
descriptions: value: 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.
source: advisory: GHSA-c5pc-mf2f-xq8h
discovery: UNKNOWN