CVE-2023-30328: 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

Critical severity · published May 4, 2023

CVE-2023-30328

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

9.8

CVSS

1.1%

EPSS

On KEV

Description

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.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.1% · higher than 65% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Shimo · Mailbutler

5.0.4 · source: NVD

Affected product

Shimo

Mailbutler

All Shimo CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-30328

CVE.org

https://www.cve.org/CVERecord?id=CVE-2023-30328

Exploit

https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md

Exploit

https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ