What is the CVSS score of CVE-2023-30328?

CVE-2023-30328 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: 1.1%.

Is there a public PoC exploit available for CVE-2023-30328?

Yes, a public proof-of-concept exploit is available for CVE-2023-30328. Prioritise patching immediately. EPSS: 1.1%.

Shimo CVE-2023-30328

CRITICAL

Improper Authentication (CWE-287)

2023-05-04 cve@mitre.org

Apple Authentication Bypass Shimo

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

May 04, 2023 - 21:15 nvd

CRITICAL 9.8

DescriptionNVD

An issue in the helper tool of Mailbutler GmbH Shimo VPN Client for macOS v5.0.4 allows attackers to bypass authentication via PID re-use.

AnalysisAI

An issue in the helper tool of Mailbutler GmbH Shimo VPN Client for macOS v5.0.4 allows attackers to bypass authentication via PID re-use. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. An issue in the helper tool of Mailbutler GmbH Shimo VPN Client for macOS v5.0.4 allows attackers to bypass authentication via PID re-use. Affected products include: Mailbutler Shimo.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.