Grafana path traversal
CVE-2021-43798

7.5HIGH

Key Information:

Vendor

Grafana

Status
Vendor
CVE Published:
7 December 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 94%🦅 CISA Reported

What is CVE-2021-43798?

Grafana, an open-source monitoring and observability platform, is susceptible to a directory traversal vulnerability in versions ranging from 8.0.0-beta1 to 8.3.0. This vulnerability enables unauthorized access to local files via specially crafted URL paths which include the identifier for any installed plugin. It is crucial for users to upgrade to the patched versions (8.0.7, 8.1.8, 8.2.7, or 8.3.1) to mitigate this risk. The Grafana Cloud remains secure against this vulnerability. Further details on affected URLs, mitigation strategies, and a disclosure timeline are available in the GitHub Security Advisory.

CISA has reported CVE-2021-43798

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2021-43798 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected Version(s)

grafana >= 8.0.0, < 8.0.7 < 8.0.0, 8.0.7

grafana >= 8.1.0, < 8.1.8 < 8.1.0, 8.1.8

grafana >= 8.2.0, < 8.2.7 < 8.2.0, 8.2.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

EPSS Score

94% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🦅

    CISA Reported

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2021-43798 : Grafana path traversal