CVE-2020-3483

Duo has identified and fixed an issue with the Duo Network Gateway (DNG) product in which some customer-provided SSL certificates and private keys were not excluded from logging. This issue resulted in certificate and private key information being written out in plain-text to local files on the DNG host. Any private keys logged in this way could be viewed by those with access to the DNG host operating system without any need for reversing encrypted values or similar techniques. An attacker that gained access to the DNG logs and with the ability to intercept and manipulate network traffic between a user and the DNG, could decrypt and manipulate SSL/TLS connections to the DNG and to the protected applications behind it. Duo Network Gateway (DNG) versions 1.3.3 through 1.5.7 are affected.

CVSS v3 7.1 HIGH
CVSS v2.0 3.3 LOW

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

3.3^/10

CVSS v2.0 : LOW

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

Exploitability : 3.4 / Impact : 4.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://duo.com/labs/psa/duo-psa-2020-004	Patch Vendor Advisory
https://duo.com/labs/psa/duo-psa-2020-004	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:duo_network_gateway:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:31

Type	Values Removed	Values Added
References	~~() https://duo.com/labs/psa/duo-psa-2020-004 - Patch, Vendor Advisory~~	() https://duo.com/labs/psa/duo-psa-2020-004 - Patch, Vendor Advisory
CVSS	v2 : ~~3.3~~ v3 : ~~6.3~~	v2 : 3.3 v3 : 7.1

Information

Published : 2020-10-14 19:15

Updated : 2024-11-21 05:31

NVD link : CVE-2020-3483

Mitre link : CVE-2020-3483

CVE.ORG link : CVE-2020-3483

JSON object : View

Products Affected

cisco

duo_network_gateway

CWE

CWE-256

Plaintext Storage of a Password

CWE-522

Insufficiently Protected Credentials

{"id": "CVE-2020-3483", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.3, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "ykramarz@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.0}]}, "published": "2020-10-14T19:15:14.087", "references": [{"url": "https://duo.com/labs/psa/duo-psa-2020-004", "tags": ["Patch", "Vendor Advisory"], "source": "ykramarz@cisco.com"}, {"url": "https://duo.com/labs/psa/duo-psa-2020-004", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-256"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-522"}]}], "descriptions": [{"lang": "en", "value": "Duo has identified and fixed an issue with the Duo Network Gateway (DNG) product in which some customer-provided SSL certificates and private keys were not excluded from logging. This issue resulted in certificate and private key information being written out in plain-text to local files on the DNG host. Any private keys logged in this way could be viewed by those with access to the DNG host operating system without any need for reversing encrypted values or similar techniques. An attacker that gained access to the DNG logs and with the ability to intercept and manipulate network traffic between a user and the DNG, could decrypt and manipulate SSL/TLS connections to the DNG and to the protected applications behind it. Duo Network Gateway (DNG) versions 1.3.3 through 1.5.7 are affected."}, {"lang": "es", "value": "Duo ha identificado y corregido un problema con el producto Duo Network Gateway (DNG) en el que algunos certificados SSL proporcionados por el cliente y claves privadas no fueron excluidas del registro. Este problema result\u00f3 en que la informaci\u00f3n del certificado y la clave privada ha sido escrita en texto plano para archivos locales en el host DNG. Cualquier clave privada registrada de esta manera podr\u00eda ser visualizada por aquellos con acceso al sistema operativo host DNG sin necesidad de invertir valores cifrados o t\u00e9cnicas similares. Un atacante que consigui\u00f3 acceso a los registros DNG y con la capacidad de interceptar y manipular el tr\u00e1fico de red entre un usuario y el DNG, podr\u00eda descifrar y manipular conexiones SSL/TLS en el DNG y en las aplicaciones protegidas detr\u00e1s de \u00e9l. Duo Network Gateway (DNG) versiones 1.3.3 hasta 1.5.7 est\u00e1n afectadas"}], "lastModified": "2024-11-21T05:31:09.763", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:duo_network_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "532C319E-10FE-43F9-A49E-5BE9A3D9CC08", "versionEndIncluding": "1.5.7", "versionStartIncluding": "1.3.3"}], "operator": "OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}