CVE-2021-41583

vpn-user-portal (aka eduVPN or Let's Connect!) before 2.3.14, as packaged for Debian 10, Debian 11, and Fedora, allows remote authenticated users to obtain OS filesystem access, because of the interaction of QR codes with an exec that uses the -r option. This can be leveraged to obtain additional VPN access.

CVSS v3 6.5 MEDIUM
CVSS v2.0 9.0 HIGH

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/eduvpn/vpn-user-portal/releases	Release Notes Third Party Advisory
https://list.surfnet.nl/pipermail/eduvpn-deploy/2021-September/000352.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*
	cpe:2.3:o:fedoraproject:fedora:-:::::::*

cpe:2.3:a:eduvpn:vpn-user-portal:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-09-24 03:15

Updated : 2024-03-12 17:33

NVD link : CVE-2021-41583

Mitre link : CVE-2021-41583

CVE.ORG link : CVE-2021-41583

JSON object : View

Products Affected

debian

debian_linux

eduvpn

vpn-user-portal

fedoraproject

fedora

CWE

CWE-20

Improper Input Validation

{"id": "CVE-2021-41583", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-09-24T03:15:06.620", "references": [{"url": "https://github.com/eduvpn/vpn-user-portal/releases", "tags": ["Release Notes", "Third Party Advisory"], "source": "nvd@nist.gov"}, {"url": "https://list.surfnet.nl/pipermail/eduvpn-deploy/2021-September/000352.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "vpn-user-portal (aka eduVPN or Let's Connect!) before 2.3.14, as packaged for Debian 10, Debian 11, and Fedora, allows remote authenticated users to obtain OS filesystem access, because of the interaction of QR codes with an exec that uses the -r option. This can be leveraged to obtain additional VPN access."}, {"lang": "es", "value": "vpn-user-portal (tambi\u00e9n se conoce como eduVPN o Let's Connect!) versiones anteriores a 2.3.14, empaquetado para Debian 10, Debian 11 y Fedora, permite a usuarios remotos autenticados conseguir acceso al sistema de archivos del Sistema Operativo, debido a una interacci\u00f3n de los c\u00f3digos QR con un exec que utiliza la opci\u00f3n -r. Esto puede ser aprovechado para conseguir acceso adicional a la VPN."}], "lastModified": "2024-03-12T17:33:31.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D3FEADDA-2AEE-4F65-9401-971B585664A8"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:eduvpn:vpn-user-portal:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1CE96AC-501B-4C60-A2DE-A1200463A50B", "versionEndExcluding": "2.3.14", "versionStartIncluding": "2.3.2"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}