CVE-2020-15679 - OpenCVE

An OAuth session fixation vulnerability existed in the VPN login flow, where an attacker could craft a custom login URL, convince a VPN user to login via that URL, and obtain authenticated access as that user. This issue is limited to cases where attacker and victim are sharing the same source IP and could allow the ability to view session states and disconnect VPN sessions. This vulnerability affects Mozilla VPN iOS 1.0.7 < (929), Mozilla VPN Windows < 1.2.2, and Mozilla VPN Android 1.1.0 < (1360).

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

Vendors & Products
CPE Configurations

Vendors	Products
Mozilla	Vpn

Configuration 1 [-]

OR	cpe:2.3:a:mozilla:vpn::::::iphone_os::*
	cpe:2.3:a:mozilla:vpn::::::windows::*
	cpe:2.3:a:mozilla:vpn::::::ipados::*
	cpe:2.3:a:mozilla:vpn::::::android::*

References

Link	Resource
https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9	Patch Third Party Advisory
https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54	Patch Third Party Advisory
https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b	Patch Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-48/	Vendor Advisory

History

No history.

MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2022-12-22T00:00:00

Updated: 2022-12-22T00:00:00

Reserved: 2020-07-10T00:00:00

Link: CVE-2020-15679

JSON object: View

NVD Information

Status : Analyzed

Published: 2022-12-22T20:15:10.730

Modified: 2022-12-29T19:16:28.887

Link: CVE-2020-15679

JSON object: View

Redhat Information

No data.

CWE

CWE-384

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:vpn:*:*:*:*:*:iphone_os:*:*", "matchCriteriaId": "BCE5840F-B8E4-4B91-AF81-123C0E5DC0D7", "versionEndExcluding": "1.0.7_\\(929\\)", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:vpn:*:*:*:*:*:windows:*:*", "matchCriteriaId": "4923D7EA-8A4F-485F-ADB0-C56BBDC420EA", "versionEndExcluding": "1.2.2", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:vpn:*:*:*:*:*:ipados:*:*", "matchCriteriaId": "CE3CB7D7-49C2-4516-8110-6E5B4FCB450B", "versionEndExcluding": "1.0.7_\\(929\\)", "versionStartIncluding": "1.0.7", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:vpn:*:*:*:*:*:android:*:*", "matchCriteriaId": "3A2E0580-85D3-4DA0-A6D6-F56B9E60A432", "versionEndExcluding": "1.1.0_\\(1360\\)", "versionStartIncluding": "1.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An OAuth session fixation vulnerability existed in the VPN login flow, where an attacker could craft a custom login URL, convince a VPN user to login via that URL, and obtain authenticated access as that user. This issue is limited to cases where attacker and victim are sharing the same source IP and could allow the ability to view session states and disconnect VPN sessions. This vulnerability affects Mozilla VPN iOS 1.0.7 < (929), Mozilla VPN Windows < 1.2.2, and Mozilla VPN Android 1.1.0 < (1360)."}, {"lang": "es", "value": "Exist\u00eda una vulnerabilidad de reparaci\u00f3n de sesi\u00f3n de OAuth en el flujo de inicio de sesi\u00f3n de VPN, donde un atacante pod\u00eda crear una URL de inicio de sesi\u00f3n personalizada, convencer a un usuario de VPN para que iniciara sesi\u00f3n a trav\u00e9s de esa URL y obtener acceso autenticado como ese usuario. Este problema se limita a los casos en los que el atacante y la v\u00edctima comparten la misma IP de origen y podr\u00eda permitir la posibilidad de ver los estados de las sesiones y desconectar las sesiones de VPN. Esta vulnerabilidad afecta a Mozilla VPN iOS 1.0.7 < (929), Mozilla VPN Windows < 1.2.2 y Mozilla VPN Android 1.1.0 < (1360)."}], "id": "CVE-2020-15679", "lastModified": "2022-12-29T19:16:28.887", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-12-22T20:15:10.730", "references": [{"source": "security@mozilla.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9"}, {"source": "security@mozilla.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54"}, {"source": "security@mozilla.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-48/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-384"}], "source": "nvd@nist.gov", "type": "Primary"}]}