CVE-2021-36156

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-36156
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.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://github.com/grafana/loki/pull/4020#issue-694377133 Issue Tracking Third Party Advisory
https://github.com/grafana/loki/releases/tag/v2.3.0 Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:grafana:loki:*:*:*:*:*:*:*:*
History

14 Sep 2021, 18:46

Type Values Removed Values Added
References (MISC) https://github.com/grafana/loki/releases/tag/v2.3.0 - (MISC) https://github.com/grafana/loki/releases/tag/v2.3.0 - Patch, Third Party Advisory

07 Sep 2021, 20:15

Type Values Removed Values Added
References
  • {'url': 'https://grafana.com/docs/grafana/latest/release-notes/', 'name': 'https://grafana.com/docs/grafana/latest/release-notes/', 'tags': ['Release Notes', 'Third Party Advisory'], 'refsource': 'MISC'}
  • (MISC) https://github.com/grafana/loki/releases/tag/v2.3.0 -

12 Aug 2021, 14:30

Type Values Removed Values Added
CPE cpe:2.3:a:grafana:loki:*:*:*:*:*:*:*:*
References (MISC) https://github.com/grafana/loki/pull/4020#issue-694377133 - (MISC) https://github.com/grafana/loki/pull/4020#issue-694377133 - Issue Tracking, Third Party Advisory
References (MISC) https://grafana.com/docs/grafana/latest/release-notes/ - (MISC) https://grafana.com/docs/grafana/latest/release-notes/ - Release Notes, Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 5.3
CWE CWE-22

03 Aug 2021, 15:33

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-03 15:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-36156

Mitre link : CVE-2021-36156

CVE.ORG link : CVE-2021-36156

JSON object : View

Products Affected

grafana

  • loki
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')