CVE-2021-38459

The data of a network capture of the initial handshake phase can be used to authenticate at a SYSDBA level. If a specific .exe is not restarted often, it is possible to access the needed handshake packets between admin/client connections. Using the SYSDBA permission, an attacker can change user passwords or delete the database.

CVSS v3 8.1 HIGH
CVSS v2.0 7.5 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01	Patch Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01	Patch Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:auvesy:versiondog:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:17

Type	Values Removed	Values Added
References	~~() https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01 - Patch, Third Party Advisory, US Government Resource~~	() https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01 - Patch, Third Party Advisory, US Government Resource
CVSS	v2 : ~~7.5~~ v3 : ~~9.8~~	v2 : 7.5 v3 : 8.1

27 Oct 2021, 16:26

Type	Values Removed	Values Added
References	~~(CONFIRM) https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01 -~~	(CONFIRM) https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01 - Patch, Third Party Advisory, US Government Resource
CPE		cpe:2.3:a:auvesy:versiondog::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8

22 Oct 2021, 12:43

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-10-22 12:15

Updated : 2024-11-21 06:17

NVD link : CVE-2021-38459

Mitre link : CVE-2021-38459

CVE.ORG link : CVE-2021-38459

JSON object : View

Products Affected

auvesy

versiondog

CWE

CWE-294

Authentication Bypass by Capture-replay

{"id": "CVE-2021-38459", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-10-22T12:15:08.367", "references": [{"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01", "tags": ["Patch", "Third Party Advisory", "US Government Resource"], "source": "ics-cert@hq.dhs.gov"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01", "tags": ["Patch", "Third Party Advisory", "US Government Resource"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-294"}]}], "descriptions": [{"lang": "en", "value": "The data of a network capture of the initial handshake phase can be used to authenticate at a SYSDBA level. If a specific .exe is not restarted often, it is possible to access the needed handshake packets between admin/client connections. Using the SYSDBA permission, an attacker can change user passwords or delete the database."}, {"lang": "es", "value": "Los datos de una captura de red de la fase inicial del handshake pueden ser usados para autenticar a nivel de SYSDBA. Si un determinado .exe no se reinicia con frecuencia, es posible acceder a los paquetes de handshake necesarios entre las conexiones admin/cliente. Usando el permiso SYSDBA, un atacante puede cambiar las contrase\u00f1as de los usuarios o borrar la base de datos"}], "lastModified": "2024-11-21T06:17:09.217", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:auvesy:versiondog:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE7528C6-8C4F-49D1-8591-BB54D2D6833C", "versionEndExcluding": "8.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}