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MitreCVE-2021-36156

HistoryAug 03, 2021 - 3:15 p.m.

CVE-2021-36156

2021-08-0315:15:08

CWE-22

mitre

web.nvd.nist.gov

grafana

loki

cve-2021-36156

directory traversal

security vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

34.8%

JSON

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.

Affected configurations

Nvd

Node

grafanalokiRange≤2.2.1

VendorProductVersionCPE
grafanaloki*cpe:2.3:a:grafana:loki:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
grafana	loki	*	cpe:2.3:a:grafana:loki::::::::

References

github.com/grafana/loki/pull/4020#issue-694377133

github.com/grafana/loki/releases/tag/v2.3.0

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

34.8%

JSON

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