CVE-2023-32634 - OpenCVE

An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact total

Vendors	Products
Softether	Vpn

Configuration 1 [-]

OR	cpe:2.3:a:softether:vpn:4.41-9782:beta::::::
	cpe:2.3:a:softether:vpn:5.01.9674:::::::*

No data.

References

Link	Providers
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755
https://www.softether.org/9-about/News/904-SEVPN202301

History

Tue, 17 Sep 2024 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: talos

Published: 2023-10-12T15:27:51.751Z

Updated: 2024-09-17T18:25:53.739Z

Reserved: 2023-06-02T14:34:08.115Z

Link: CVE-2023-32634

Vulnrichment

Updated: 2024-08-02T15:25:35.753Z

NVD

Status : Analyzed

Published: 2023-10-12T16:15:11.920

Modified: 2023-10-18T18:56:33.150

Link: CVE-2023-32634

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-32634", "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "state": "PUBLISHED", "assignerShortName": "talos", "dateReserved": "2023-06-02T14:34:08.115Z", "datePublished": "2023-10-12T15:27:51.751Z", "dateUpdated": "2024-09-17T18:25:53.739Z"}, "containers": {"cna": {"affected": [{"vendor": "SoftEther VPN", "product": "SoftEther VPN", "versions": [{"version": "4.41-9782-beta", "status": "affected"}, {"version": "5.01.9674", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-300: Channel Accessible by Non-Endpoint ('Man-in-the-Middle')", "type": "CWE", "cweId": "CWE-300"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "providerMetadata": {"orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "shortName": "talos", "dateUpdated": "2023-10-12T17:00:07.639Z"}, "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755", "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755"}, {"url": "https://www.softether.org/9-about/News/904-SEVPN202301", "name": "https://www.softether.org/9-about/News/904-SEVPN202301"}], "credits": [{"lang": "en", "value": "Discovered by Lilith >_> of Cisco Talos."}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T15:25:35.753Z"}, "title": "CVE Program Container", "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755", "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755", "tags": ["x_transferred"]}, {"url": "https://www.softether.org/9-about/News/904-SEVPN202301", "name": "https://www.softether.org/9-about/News/904-SEVPN202301", "tags": ["x_transferred"]}]}, {"affected": [{"vendor": "softether", "product": "vpn", "cpes": ["cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "4.41-9782", "status": "affected"}]}, {"vendor": "softether", "product": "vpn", "cpes": ["cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "5.01.9674", "status": "affected"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-17T18:23:15.009192Z", "id": "CVE-2023-32634", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2024-09-17T18:25:53.739Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755", "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755", "tags": ["x_transferred"]}, {"url": "https://www.softether.org/9-about/News/904-SEVPN202301", "name": "https://www.softether.org/9-about/News/904-SEVPN202301", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T15:25:35.753Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-32634", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-09-17T18:23:15.009192Z"}}}], "affected": [{"cpes": ["cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*"], "vendor": "softether", "product": "vpn", "versions": [{"status": "affected", "version": "4.41-9782"}], "defaultStatus": "unknown"}, {"cpes": ["cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*"], "vendor": "softether", "product": "vpn", "versions": [{"status": "affected", "version": "5.01.9674"}], "defaultStatus": "unknown"}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-17T18:25:49.528Z"}}], "cna": {"credits": [{"lang": "en", "value": "Discovered by Lilith >_> of Cisco Talos."}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "SoftEther VPN", "product": "SoftEther VPN", "versions": [{"status": "affected", "version": "4.41-9782-beta"}, {"status": "affected", "version": "5.01.9674"}]}], "references": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755", "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755"}, {"url": "https://www.softether.org/9-about/News/904-SEVPN202301", "name": "https://www.softether.org/9-about/News/904-SEVPN202301"}], "descriptions": [{"lang": "en", "value": "An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-300", "description": "CWE-300: Channel Accessible by Non-Endpoint ('Man-in-the-Middle')"}]}], "providerMetadata": {"orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "shortName": "talos", "dateUpdated": "2023-10-12T17:00:07.639Z"}}}, "cveMetadata": {"cveId": "CVE-2023-32634", "state": "PUBLISHED", "dateUpdated": "2024-09-17T18:25:53.739Z", "dateReserved": "2023-06-02T14:34:08.115Z", "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "datePublished": "2023-10-12T15:27:51.751Z", "assignerShortName": "talos"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*", "matchCriteriaId": "79C47EE5-1B55-4FDD-A5B5-E10FF3337100", "vulnerable": true}, {"criteria": "cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*", "matchCriteriaId": "5CF5CF13-B22F-494B-BDC0-B59371979251", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability."}, {"lang": "es", "value": "Existe una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n en la funcionalidad CiRpcServerThread() de SoftEther VPN 5.01.9674 y 4.41-9782-beta. Un atacante puede realizar un ataque de intermediario local para desencadenar esta vulnerabilidad."}], "id": "CVE-2023-32634", "lastModified": "2023-10-18T18:56:33.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "talos-cna@cisco.com", "type": "Secondary"}]}, "published": "2023-10-12T16:15:11.920", "references": [{"source": "talos-cna@cisco.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755"}, {"source": "talos-cna@cisco.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.softether.org/9-about/News/904-SEVPN202301"}], "sourceIdentifier": "talos-cna@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-300"}], "source": "talos-cna@cisco.com", "type": "Secondary"}]}