SB2021031903 - Multiple vulnerabilities in Grafana

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Main Vulnerability Database SB2021031903

SB2021031903 - Multiple vulnerabilities in Grafana

Published: March 19, 2021

Security Bulletin ID SB2021031903
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Improper Privilege Management (CVE-ID: CVE-2021-27962)

CWE-ID: CWE-269 - Improper Privilege Management

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to escalate privileges within the application.

The vulnerability exists due to improper privilege management. A remote user with Editor privileges can bypass data source permissions on the organization's default data source.


2) Improper access control (CVE-ID: CVE-2021-28146)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented security restrictions and add external groups to existing teams.


3) Improper access control (CVE-ID: CVE-2021-28147)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions, when editorsCanAdmin  feature is enabled. A remote user can bypass implemented security restrictions and add external group members to existing teams.


4) Improper control of interaction frequency (CVE-ID: CVE-2021-28148)

CWE-ID: CWE-799 - Improper Control of Interaction Frequency

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to absent control of interaction frequency within the HTTP API endpoint for insights usage. A remote non-authenticated attacker send multiple HTTP requests and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References