THREATPORT/VULNERABILITY/CVE-2023-37266
CRITICAL SEVERITY

CVE-2023-37266

Casaos vulnerability

CVSS
9.8
EPSS
6.8%
EPSS pct
93th
Exploited
No known
CasaOS is an open-source Personal Cloud system. Unauthenticated attackers can craft arbitrary JWTs and access features that usually require authentication and execute arbitrary commands as `root` on CasaOS instances. This problem was addressed by improving the validation of JWTs in commit `705bf1f`. This patch is part of CasaOS 0.4.4. Users should upgrade to CasaOS 0.4.4. If they can't, they should temporarily restrict access to CasaOS to untrusted users, for instance by not exposing it publicly.
Affected vendor
Icewhale
Affected product
Casaos
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-287 — Improper Authentication
Published
2023-07-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 6.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2023-37266

  • Confirm whether Icewhale Casaos is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-37266.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-37266

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