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Vulnerability Details :

CVE-2020-15679

Summary
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At-22 Dec, 2022 | 00:00
Updated At-16 Apr, 2025 | 15:52
Rejected At-
Credits

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).

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mozilla
Assigner Org ID:f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At:22 Dec, 2022 | 00:00
Updated At:16 Apr, 2025 | 15:52
Rejected At:
▼CVE Numbering Authority (CNA)

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 Products
Vendor
Mozilla CorporationMozilla
Product
Mozilla VPN iOS 1.0.7
Versions
Affected
  • From unspecified before (929) (custom)
Vendor
Mozilla CorporationMozilla
Product
Mozilla VPN Windows
Versions
Affected
  • From unspecified before 1.2.2 (custom)
Vendor
Mozilla CorporationMozilla
Product
Mozilla VPN Android 1.1.0
Versions
Affected
  • From unspecified before (1360) (custom)
Problem Types
TypeCWE IDDescription
textN/AOAuth Session Fixation on VPN login
Type: text
CWE ID: N/A
Description: OAuth Session Fixation on VPN login
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.mozilla.org/security/advisories/mfsa2020-48/
N/A
https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
N/A
https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
N/A
https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-48/
Resource: N/A
Hyperlink: https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
Resource: N/A
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
Resource: N/A
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.mozilla.org/security/advisories/mfsa2020-48/
x_transferred
https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
x_transferred
https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
x_transferred
https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
x_transferred
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-48/
Resource:
x_transferred
Hyperlink: https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
Resource:
x_transferred
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
Resource:
x_transferred
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
Resource:
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-384CWE-384 Session Fixation
Type: CWE
CWE ID: CWE-384
Description: CWE-384 Session Fixation
Metrics
VersionBase scoreBase severityVector
3.17.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Version: 3.1
Base score: 7.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@mozilla.org
Published At:22 Dec, 2022 | 20:15
Updated At:16 Apr, 2025 | 16:15

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).

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Secondary3.17.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Type: Primary
Version: 3.1
Base score: 7.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Type: Secondary
Version: 3.1
Base score: 7.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
CPE Matches
Mozilla Corporation
mozilla
>>vpn>>Versions before 1.0.7_\(929\)(exclusive)
cpe:2.3:a:mozilla:vpn:*:*:*:*:*:iphone_os:*:*
Mozilla Corporation
mozilla
>>vpn>>Versions before 1.2.2(exclusive)
cpe:2.3:a:mozilla:vpn:*:*:*:*:*:windows:*:*
Mozilla Corporation
mozilla
>>vpn>>Versions from 1.0.7(inclusive) to 1.0.7_\(929\)(exclusive)
cpe:2.3:a:mozilla:vpn:*:*:*:*:*:ipados:*:*
Mozilla Corporation
mozilla
>>vpn>>Versions from 1.1.0(inclusive) to 1.1.0_\(1360\)(exclusive)
cpe:2.3:a:mozilla:vpn:*:*:*:*:*:android:*:*
Weaknesses
CWE IDTypeSource
CWE-384Primarynvd@nist.gov
CWE-384Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-384
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-384
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9security@mozilla.org
Patch
Third Party Advisory
https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54security@mozilla.org
Patch
Third Party Advisory
https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41bsecurity@mozilla.org
Patch
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-48/security@mozilla.org
Vendor Advisory
https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9af854a3a-2127-422b-91ae-364da2661108
Patch
Third Party Advisory
https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54af854a3a-2127-422b-91ae-364da2661108
Patch
Third Party Advisory
https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41baf854a3a-2127-422b-91ae-364da2661108
Patch
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-48/af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
Source: security@mozilla.org
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
Source: security@mozilla.org
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
Source: security@mozilla.org
Resource:
Patch
Third Party Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-48/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Third Party Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-48/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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