Vulnerabilities in pkg:npm/@backstage/plugin-app-backend
PACKAGECVE-2024-47762 is a MODERATE (CVSS 5.8) unexpected visibility of environment variable vulnerability (CWE-440: Expected Behavior Violation) affecting @backstage/plugin app backend libraries in the npm ecosystem. The issue involves unexpected visibility of environment variable configurations in @backstage/plugin-app-backend. Remediation is available by upgrading affected packages to version 0.3.75.
pkg:npm/@backstage/plugin-app-backend
Vulnerability advisories affecting package pkg:npm/@backstage/plugin-app-backend. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-qc4v-xq2m-65wc | CVE-2024-47762 | MODERATE | Unexpected visibility of environment variable configurations in @backstage/plugin-app-backend |
CVE-2024-47762 at a Glance
Security Impact
CVSS: 5.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N).
How to Fix CVE-2024-47762
To remediate this vulnerability, upgrade all affected @backstage/plugin app backend dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install @backstage/plugin-app-backend@0.3.75Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls @backstage/plugin-app-backendHow to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2024-47762, inspect your project dependencies using npm:
npm ls @backstage/plugin-app-backendAnalyze the terminal output to locate any version of @backstage/plugin app backend in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.3.75), your application is affected.
Note: The npm ls @backstage/plugin-app-backend command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-440: Expected Behavior Violation, where a feature, api, or function does not perform according to its specification. In @backstage/plugin app backend, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2024-47762 Affected @backstage/plugin app backend Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
@backstage/plugin-app-backend
|
npm |
< 0.3.75
|
0.3.75
|
References
Frequently Asked Questions
What is CVE-2024-47762?
Which @backstage/plugin app backend versions are affected?
What version fixes CVE-2024-47762?
Is @backstage/plugin-app-backend affected?
What is the CVSS score of CVE-2024-47762?
What CWE is associated with CVE-2024-47762?
How can I check npm dependencies for CVE-2024-47762?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-qc4v-xq2m-65wc",
"modified" : "2024-10-03T18:41:10Z",
"published" : "2024-10-03T16:51:24Z",
"aliases" : [ "CVE-2024-47762" ],
"summary" : "Unexpected visibility of environment variable configurations in @backstage/plugin-app-backend",
"details" : "### Impact\n\nConfiguration supplied through `APP_CONFIG_*` environment variables, for example `APP_CONFIG_backend_listen_port=7007`, where unexpectedly ignoring the visibility defined in configuration schema. This occurred even if the configuration schema specified that they should have backend or secret visibility. This was an intended feature of the `APP_CONFIG_*` way of supplying configuration, but now clearly goes against the expected behavior of the configuration system. This behavior leads to a risk of potentially exposing sensitive configuration details intended to remain private or restricted to backend processes.\n\n### Patches\n\nThe issue has been resolved in version `0.3.75` of the `@backstage/plugin-app-backend` package. Users are encouraged to upgrade to this version to mitigate the vulnerability.\n\n### Workarounds\n\nAs a temporary measure, avoid supplying secrets using the `APP_CONFIG_` configuration pattern. Consider alternative methods for setting secrets, such as the [environment substitution](https://backstage.io/docs/conf/writing#environment-variable-substitution) available for Backstage configuration.\n\n### References\n\nIf you have any questions or comments about this advisory:\n\nOpen an issue in the [Backstage repository](https://github.com/backstage/backstage)\nVisit our Discord, linked to in [Backstage README](https://github.com/backstage/backstage)\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
}, {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "@backstage/plugin-app-backend"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.3.75"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/backstage/backstage/security/advisories/GHSA-qc4v-xq2m-65wc"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-47762"
}, {
"type" : "WEB",
"url" : "https://github.com/backstage/backstage/commit/323e6129073c5cb4cc106a1239eaec31a129554f"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/backstage/backstage"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-440" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2024-10-03T16:51:24Z",
"nvd_published_at" : "2024-10-03T18:15:05Z"
}
}