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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWpwaG0tZzg5bS12NDJw

Path traversal in Grafana Cortex

An issue was discovered in Grafana Cortex through 1.9.0. 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 Cortex will attempt to parse a rules file at that location and include some of the contents in the error message. (Other Cortex API requests can also be sent a malicious OrgID header, e.g., tricking the ingester into writing metrics to a different location, but the effect is nuisance rather than information disclosure.)

Permalink: https://github.com/advisories/GHSA-jphm-g89m-v42p
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWpwaG0tZzg5bS12NDJw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

Identifiers: GHSA-jphm-g89m-v42p, CVE-2021-36157
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-36157
• https://github.com/cortexproject/cortex/pull/4375
• https://github.com/cortexproject/cortex/commit/d9e1f81f40c607b9e97c2fc6db70ae54679917c4
• https://grafana.com/docs/grafana/latest/release-notes/
• https://github.com/advisories/GHSA-jphm-g89m-v42p

Repository: https://github.com/cortexproject/cortex
Blast Radius: 0.0

Affected Packages