What is the CVSS score of CVE-2023-37266?

CVE-2023-37266 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 5.9%.

Is there a public PoC exploit available for CVE-2023-37266?

Yes, a public proof-of-concept exploit is available for CVE-2023-37266. Prioritise patching immediately. EPSS: 5.9%.

Is there a patch available for CVE-2023-37266?

Yes, a patch is available for CVE-2023-37266. Update the affected software to the latest version immediately.

Casaos CVE-2023-37266

CRITICAL

Improper Authentication (CWE-287)

2023-07-17 security-advisories@github.com

Authentication Bypass Casaos

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 17, 2023 - 21:15 nvd

CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

CasaOS is an open-source Personal Cloud system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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 products include: Icewhale Casaos.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.