Vulnerability Details : CVE-2023-27591
Miniflux is a feed reader. Prior to version 2.0.43, an unauthenticated user can retrieve Prometheus metrics from a publicly reachable Miniflux instance where the `METRICS_COLLECTOR` configuration option is enabled and `METRICS_ALLOWED_NETWORKS` is set to `127.0.0.1/8` (the default). A patch is available in Miniflux 2.0.43. As a workaround, set `METRICS_COLLECTOR` to `false` (default) or run Miniflux behind a trusted reverse-proxy.
Vulnerability category: Information leak
Products affected by CVE-2023-27591
- cpe:2.3:a:miniflux_project:miniflux:*:*:*:*:*:go:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-27591
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-27591
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2023-27591
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security-advisories@github.com (Secondary)
-
The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-27591
-
https://miniflux.app/docs/configuration.html#metrics-collector
Configuration ParametersProduct
-
https://github.com/miniflux/v2/releases/tag/2.0.43
Release Miniflux 2.0.43 · miniflux/v2 · GitHubRelease Notes
-
https://github.com/miniflux/v2/security/advisories/GHSA-3qjf-qh38-x73v
Unauthenticated user can bypass allowed networks check to obtain Prometheus metrics · Advisory · miniflux/v2 · GitHubVendor Advisory
-
https://github.com/miniflux/v2/pull/1745
Use `r.RemoteAddr` to check `/metrics` endpoint network access by fguillot · Pull Request #1745 · miniflux/v2 · GitHubIssue Tracking;Patch
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