Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWdyajUtOHg2cS1oYzlx

Path traversal in Grafana Loki

An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal such as ae ../../sensitive/path/in/deployment pathname, then Loki will attempt to parse a rules file at that location and include some of the contents in the error message.

Permalink: https://github.com/advisories/GHSA-grj5-8x6q-hc9q
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWdyajUtOHg2cS1oYzlx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Identifiers: GHSA-grj5-8x6q-hc9q, CVE-2021-36156
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-36156
• https://github.com/grafana/loki/pull/4020#issue-694377133
• https://github.com/grafana/loki/releases/tag/v2.3.0
• https://github.com/grafana/loki/pull/4020
• https://github.com/advisories/GHSA-grj5-8x6q-hc9q

Repository: https://github.com/grafana/loki
Blast Radius: 13.4

Affected Packages