CVE-2021-36157: Path Traversal
First published: Thu Jul 22 2021(Updated: )
A flaw in the Grafana cortex package could allow a remote attacker to traverse directories on the system caused by improper input validation by the X-Scope-OrgID header value. An attacker could send a specially-crafted URL request containing "dot-dot" sequences (/../) to view some of the contents in the error message.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Foundation Cortex | <=1.9.0 |
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Reference Links
- https://github.com/cortexproject/cortex/pull/4375
- https://grafana.com/docs/grafana/latest/release-notes/
- https://www.cve.org/CVERecord?id=CVE-2021-36157 https://nvd.nist.gov/vuln/detail/CVE-2021-36157
- https://bugzilla.redhat.com/show_bug.cgi?id=2183169
- https://access.redhat.com/errata/RHSA-2023:3304
- https://access.redhat.com/security/cve/cve-2021-36157
Frequently Asked Questions
What is the severity of CVE-2021-36157?
CVE-2021-36157 is classified as a high severity vulnerability due to its potential impact on directory traversal.
How do I fix CVE-2021-36157?
To address CVE-2021-36157, update the Grafana cortex package to a version higher than 1.9.0.
Can CVE-2021-36157 be exploited remotely?
Yes, CVE-2021-36157 can be exploited remotely by an attacker using crafted URL requests.
What systems are affected by CVE-2021-36157?
CVE-2021-36157 affects the Grafana cortex package versions up to and including 1.9.0.
What type of attack does CVE-2021-36157 involve?
CVE-2021-36157 involves a directory traversal attack that exploits improper input validation.
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