CVE-2023-30328

View on CVE.org

Published May 4, 2023 CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed

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.

Analysis

No analysis available yet

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:mailbutler:shimo:5.0.4:*:*:*:*:macos:*:*

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-34751	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.1% (1.087% probability within 30 days)

Exploitation poc

Automatable yes

Technical Impact total

References

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

History

Jan 29, 2025 8:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Mailbutler Shimo

Weaknesses

CWE-287
Improper Authentication

Sources

CVE record Updated: Jan 29, 2025, 7:25 PM

Status: PUBLISHED
Assigner: mitre
Published: May 4, 2023, 12:00 AM
Updated: Jan 29, 2025, 7:25 PM
Reserved: Apr 7, 2023, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 2:21 PM

Updated: Aug 2, 2024, 2:21 PM

NVD Updated: Jun 17, 2026, 5:54 AM

Status: Modified
Published: May 4, 2023, 9:15 PM
Modified: Jun 17, 2026, 5:54 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-30328", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-01-29T19:25:31.433Z", "dateReserved": "2023-04-07T00:00:00.000Z", "datePublished": "2023-05-04T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-05-04T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "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": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ"}, {"url": "https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T14:21:44.858Z"}, "title": "CVE Program Container", "references": [{"url": "https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ", "tags": ["x_transferred"]}, {"url": "https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md", "tags": ["x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-noinfo Not enough information"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-01-29T19:25:27.010760Z", "id": "CVE-2023-30328", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-29T19:25:31.433Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-30328", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-01-29T19:25:31.433Z", "dateReserved": "2023-04-07T00:00:00.000Z", "datePublished": "2023-05-04T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-05-04T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "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": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ"}, {"url": "https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T14:21:44.858Z"}, "title": "CVE Program Container", "references": [{"url": "https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ", "tags": ["x_transferred"]}, {"url": "https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md", "tags": ["x_transferred"]}]}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-30328", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-01-29T19:25:27.010760Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-29T19:25:16.444Z"}}]}}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mailbutler:shimo:5.0.4:*:*:*:*:macos:*:*", "matchCriteriaId": "2FC96AE4-E266-45A7-837B-CE9BA7D9C145", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2023-30328", "lastModified": "2026-06-17T05:54:29.980", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-30328", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-01-29T19:25:27.010760Z", "version": "2.0.3"}}]}, "published": "2023-05-04T21:15:11.540", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/rand0mIdas/randomideas/blob/main/ShimoVPN.md"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://raw.githubusercontent.com/rand0mIdas/randomideas/main/ShimoVPN.md?token=GHSAT0AAAAAACA3WX4SPH2YYOCWGV6LLVSGZBIEKEQ"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}