In short
- CVE-2021-36157 is a MEDIUM (CVSS 5.3) vulnerability affecting github.com/cortexproject/cortex, cortex (linuxfoundation).
- Chance of exploitation in the next 30 days (EPSS): 1.4%, higher than 72.4% of all vulnerabilities.
- No patched version is listed yet: follow the vendor's advisory in References.
Description
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.)
NVD description
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.)
More vulnerabilities in github.com/cortexproject/cortex
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