{"id":"CVE-2020-15679","state":"PUBLISHED","title":"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 authe","description":"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).","publishedAt":"2022-12-22T00:00:00.000Z","updatedAt":"2025-04-16T15:52:55.162Z","severity":{"score":7.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Mozilla VPN iOS 1.0.7","Mozilla Mozilla VPN Windows","Mozilla Mozilla VPN Android 1.1.0"],"affected":[{"vendor":"Mozilla","product":"Mozilla VPN iOS 1.0.7","versions":[{"version":"unspecified","status":"affected","lessThan":"(929)","versionType":"custom"}]},{"vendor":"Mozilla","product":"Mozilla VPN Windows","versions":[{"version":"unspecified","status":"affected","lessThan":"1.2.2","versionType":"custom"}]},{"vendor":"Mozilla","product":"Mozilla VPN Android 1.1.0","versions":[{"version":"unspecified","status":"affected","lessThan":"(1360)","versionType":"custom"}]}],"references":["https://www.mozilla.org/security/advisories/mfsa2020-48/","https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b","https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9","https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54"],"weaknesses":["CWE-384"],"ingestedAt":"2026-10-29T19:46:36.523Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/15xxx/CVE-2020-15679.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-15679","state":"PUBLISHED","datePublished":"2022-12-22T00:00:00.000Z","dateUpdated":"2025-04-16T15:52:55.162Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2020-07-10T00:00:00.000Z"},"containers":{"cna":{"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)."}],"affected":[{"vendor":"Mozilla","product":"Mozilla VPN iOS 1.0.7","versions":[{"version":"unspecified","status":"affected","lessThan":"(929)","versionType":"custom"}]},{"vendor":"Mozilla","product":"Mozilla VPN Windows","versions":[{"version":"unspecified","status":"affected","lessThan":"1.2.2","versionType":"custom"}]},{"vendor":"Mozilla","product":"Mozilla VPN Android 1.1.0","versions":[{"version":"unspecified","status":"affected","lessThan":"(1360)","versionType":"custom"}]}],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2020-48/"},{"url":"https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b"},{"url":"https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9"},{"url":"https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"OAuth Session Fixation on VPN login"}]}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2022-12-22T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2020-48/","tags":["x_transferred"]},{"url":"https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b","tags":["x_transferred"]},{"url":"https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9","tags":["x_transferred"]},{"url":"https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T13:22:30.719Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.6,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-16T15:42:49.748935Z","id":"CVE-2020-15679","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-384","type":"CWE","lang":"en","description":"CWE-384 Session Fixation"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-16T15:52:55.162Z"}}]}}}