Grafana Enterprise Request Sec DenyList Bypass via Punycode Encoding
CVE-2023-4399 Published on October 17, 2023
Grafana is an open-source platform for monitoring and observability. In Grafana Enterprise, Request security is a deny list that allows admins to configure Grafana in a way so that the instance doesnt call specific hosts. However, the restriction can be bypassed used punycode encoding of the characters in the request address.
Vulnerability Analysis
CVE-2023-4399 can be exploited with network access, and requires user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity, and a small impact on availability.
Weakness Type
What is an Allowlist / Allow List Vulnerability?
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are explicitly allowed by policy because the inputs are assumed to be safe, but the list is too permissive - that is, it allows an input that is unsafe, leading to resultant weaknesses.
CVE-2023-4399 has been classified to as an Allowlist / Allow List vulnerability or weakness.
Products Associated with CVE-2023-4399
Want to know whenever a new CVE is published for Grafana Labs Grafana? stack.watch will email you.
Affected Versions
Grafana Enterprise:- Version 10.1.0 and below 10.1.5 is affected.
- Version 10.0.0 and below 10.0.9 is affected.
- Version 9.5.0 and below 9.5.13 is affected.
- Version 9.4.0 and below 9.4.17 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.